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for
e
t
ra
ns
m
i
s
s
i
on
,
a
nd
t
he
de
c
rypt
i
on
proc
e
s
s
i
s
a
ppl
i
e
d
a
f
t
e
r
re
c
e
i
vi
ng
t
he
e
nc
ryp
t
e
d
d
a
t
a
.
F
u
r
t
he
rm
or
e
,
i
n
re
s
e
a
r
c
h
[12]
s
t
a
t
e
s
t
ha
t
t
he
va
l
ue
of
p
a
n
d
q
i
n
t
h
e
RS
A
e
nc
r
ypt
i
on
pro
c
e
s
s
m
us
t
ha
v
e
a
c
e
r
t
a
i
n
v
a
l
u
e
s
o
w
e
m
us
t
c
a
rry
out
s
e
ve
ra
l
e
xpe
ri
m
e
nt
s
t
o
c
h
e
c
k
t
h
e
p
a
nd
q
va
l
ue
s
a
re
s
ui
t
a
b
l
e
w
i
t
h
our
propos
e
d
s
ys
t
e
m
.
In
t
hi
s
pa
p
e
r
,
w
e
i
m
pl
e
m
e
nt
CS
a
n
d
RS
A
e
nc
r
ypt
i
on
on
a
b
i
na
ry
i
m
a
ge
t
ha
t
e
m
be
dd
e
d
t
o
i
m
pr
ove
s
e
c
ur
i
t
y
,
e
m
be
d
di
ng
c
a
p
a
c
i
t
y
a
nd
rob
us
t
ne
s
s
t
o
a
udi
o
a
t
t
a
c
ks
.
F
i
rs
t
,
e
m
b
e
d
t
h
e
bi
n
a
ry
i
m
a
ge
w
i
t
h
t
h
e
s
t
a
t
i
s
t
i
c
a
l
m
e
a
n
m
a
ni
pul
a
t
i
o
n
(S
M
M
)
m
e
t
ho
d
i
n
t
o
a
d
i
gi
t
a
l
a
ud
i
o
hos
t
t
h
a
t
h
a
s
be
e
n
di
vi
d
e
d
i
n
t
o
fr
e
que
nc
y
s
ub
-
ba
nds
us
i
ng
D
W
T
.
T
h
e
a
u
di
o
w
a
s
a
t
t
a
c
ke
d
by
us
i
ng
ni
ne
t
ype
s
of
a
ud
i
o
a
t
t
a
c
k
s
u
c
h
a
s
l
ow
-
p
a
s
s
f
i
l
t
e
r
(
L
P
F
),
b
a
nd
-
p
a
s
s
f
i
l
t
e
r
(
BP
F
),
n
oi
s
e
,
r
e
s
a
m
pl
i
ng
,
t
i
m
e
s
c
a
l
e
mo
d
i
fi
c
a
t
i
on
(T
S
M
)
,
l
i
n
e
a
r
s
pe
e
d
c
ha
nge
(L
S
C)
,
p
i
t
c
h
s
hi
ft
i
ng,
a
nd
t
w
o
t
yp
e
s
of
c
o
m
pre
s
s
i
on
w
i
t
h
m
o
t
i
on
p
i
c
t
ur
e
s
e
xpe
r
t
s
group
,
a
u
di
o
l
a
y
e
r
3
(M
P
3)
a
nd
a
dv
a
n
c
e
d
a
udi
o
c
od
i
ng
(A
A
C)
for
m
a
t
s
.
T
he
s
t
ru
c
t
u
re
of
t
hi
s
pa
p
e
r
c
ons
i
s
t
s
of
s
e
ve
ra
l
s
e
c
t
i
ons
.
S
e
c
t
i
on
1
d
e
s
c
r
i
be
s
i
nt
rod
uc
t
i
on
,
s
e
c
t
i
on
2
d
e
s
c
ri
be
s
re
s
e
a
r
c
h
m
e
t
hod
,
ba
s
i
c
for
m
ul
a
t
i
on
of
a
udi
o
s
t
e
g
a
nogr
a
ph
y
m
e
t
hod
a
nd
a
l
s
o
de
s
c
r
i
be
s
a
udi
o
s
t
e
ga
no
gra
p
hy
s
ys
t
e
m
w
i
t
h
e
m
be
d
di
ng
a
nd
e
x
t
ra
c
t
i
on
pr
oc
e
dur
e
s
,
s
e
c
t
i
on
3
de
s
c
ri
b
e
s
t
he
pe
r
for
m
a
n
c
e
of
t
h
e
a
ud
i
o
s
t
e
g
a
nogr
a
phy
m
e
t
hod
,
s
e
c
t
i
on
4
de
s
c
ri
b
e
s
c
on
c
l
us
i
on
.
2.
P
R
O
P
O
S
ED
M
ETH
O
D
E
xpl
a
i
n
i
ng
r
e
s
e
a
rc
h
c
hr
onol
ogi
c
a
l
,
i
nc
l
ud
i
ng
r
e
s
e
a
rc
h
d
e
s
i
gn,
r
e
s
e
a
rc
h
proc
e
dur
e
(i
n
t
h
e
for
m
of
a
l
gor
i
t
h
m
s
,
P
s
e
udo
c
od
e
or
ot
h
e
r)
,
how
t
o
t
e
s
t
a
n
d
d
a
t
a
a
c
q
ui
s
i
t
i
on
[1
-
3]
.
T
he
de
s
c
ri
p
t
i
on
of
t
he
c
ou
rs
e
of
re
s
e
a
rc
h
s
h
oul
d
be
s
up
port
e
d
r
e
fe
re
n
c
e
s
,
s
o
t
h
e
e
xpl
a
n
a
t
i
on
c
a
n
be
a
c
c
e
pt
e
d
s
c
i
e
n
t
i
f
i
c
a
l
l
y
[2
,
4]
.
T
he
a
ud
i
o
s
t
e
ga
nogr
a
phy
s
ys
t
e
m
i
s
d
e
s
i
gn
e
d
us
i
ng
s
t
e
re
o
a
ud
i
o
w
i
t
h
t
he
*
wav
for
m
a
t
a
nd
44100
H
z
fr
e
qu
e
nc
y
s
a
m
pl
i
ng
a
s
t
h
e
h
os
t
.
T
h
i
s
t
ype
of
s
t
e
g
a
nogr
a
phy
ut
i
l
i
z
e
s
t
h
e
w
e
a
kne
s
s
of
t
h
e
hu
m
a
n
a
udi
t
ory
s
ys
t
e
m
.
H
um
a
n
a
udi
t
ory
s
ys
t
e
m
i
s
o
nl
y
a
b
l
e
t
o
p
e
rc
e
i
ve
a
nd
d
e
t
e
c
t
s
oun
d
w
i
t
h
a
fr
e
qu
e
nc
y
ra
nge
of
20
H
z
~
20
kH
z
o
r
-
5
dB
~
130
dB
[13
].
S
o
,
t
he
a
ud
i
o
c
o
m
pon
e
nt
s
ou
t
s
i
d
e
from
t
h
e
fr
e
que
nc
y
r
a
nge
c
a
n
not
b
e
he
a
rd
.
T
he
e
m
be
ddi
n
g
of
a
s
e
c
r
e
t
m
e
s
s
a
g
e
i
nt
o
di
g
i
t
a
l
a
ud
i
o
c
h
a
ng
e
s
t
h
e
q
ua
l
i
t
y
of
t
h
e
a
udi
o.
T
h
e
re
fore
,
i
n
orde
r
t
o
c
hoos
e
a
goo
d
e
m
be
d
di
ng
m
e
t
hod
for
s
t
e
ga
n
ogra
phy
s
ys
t
e
m
,
w
e
m
us
t
pa
y
a
t
t
e
n
t
i
on
t
o
s
e
ve
r
a
l
c
ri
t
e
r
i
a
,
s
uc
h
a
s
i
m
p
e
rc
e
p
ti
bi
l
i
t
y,
s
e
c
ure
,
c
a
p
a
c
i
t
y
,
s
pe
e
d
,
a
nd
rob
us
t
ne
s
s
[
1
3
,
14]
.
W
hi
l
e
,
t
he
e
m
be
d
de
d
da
t
a
or
m
e
s
s
a
g
e
i
s
a
b
i
na
r
y
i
m
a
ge
,
w
hi
c
h
i
s
a
b
l
a
c
k
a
n
d
w
h
i
t
e
i
m
a
ge
.
In
g
e
ne
r
a
l
,
t
h
e
c
onf
i
de
nt
i
a
l
i
nfor
m
a
t
i
on
go
t
h
rough
t
w
o
m
a
i
n
p
roc
e
s
s
e
s
,
n
a
m
e
l
y
t
h
e
e
m
be
ddi
ng
proc
e
s
s
a
nd
e
xt
r
a
c
t
i
on
pro
c
e
s
s
.
T
he
s
ys
t
e
m
m
o
de
l
s
c
he
m
e
propos
e
d
i
n
t
hi
s
s
t
udy
i
s
i
l
l
us
t
r
a
t
e
d
i
n
F
i
gur
e
1
.
F
i
rs
t
,
t
he
b
i
na
ry
i
m
a
g
e
go
es
t
hrou
gh
t
h
e
c
o
m
pr
e
s
s
i
v
e
s
a
m
p
l
i
ng
a
c
qu
i
s
i
t
i
on
p
roc
e
s
s
,
a
nd
t
h
e
n
e
nc
ry
pt
e
d
by
us
i
ng
t
he
RS
A
e
n
c
ryp
t
i
o
n
a
l
gor
i
t
h
m
.
T
h
e
RS
A
a
l
gori
t
hm
i
s
e
xpl
a
i
n
e
d
i
n
[
15]
.
T
he
n
e
x
t
s
t
e
p
i
s
t
o
pe
rf
orm
t
he
e
m
be
ddi
n
g
pr
oc
e
s
s
on
w
a
v
e
l
e
t
do
m
a
i
n
us
i
ng
S
M
M
i
nt
o
hos
t
a
udi
o.
F
i
gu
r
e
1
.
T
he
pr
opo
s
e
d
o
f
s
t
e
ga
n
ogr
a
phy
s
ys
t
e
m
3.
R
ES
U
LTS
A
N
D
A
N
A
LY
S
I
S
3.
1
.
Emb
e
d
d
i
n
g
s
ys
te
m
d
e
s
i
gn
T
he
e
m
be
dd
i
ng
proc
e
s
s
of
a
bi
n
a
ry
i
m
a
ge
i
n
t
o
a
di
g
i
t
a
l
a
udi
o
fi
l
e
on
a
n
a
udi
o
s
t
e
ga
no
gra
p
hy
s
ys
t
e
m
i
s
be
i
ng
don
e
b
y
us
i
ng
t
he
D
W
T
-
S
M
M
m
e
t
hod
w
h
i
c
h
pr
e
vi
ou
s
l
y
h
a
d
t
o
go
t
hroug
h
t
he
CS
a
nd
RS
A
e
nc
r
ypt
i
on
proc
e
s
s
b
e
for
e
be
i
ng
e
m
be
dde
d
.
T
he
pro
c
e
s
s
e
d
a
ud
i
o
fi
l
e
g
o
es
t
hrou
gh
t
h
e
fre
q
ue
n
c
y
di
vi
d
i
ng
pro
c
e
s
s
t
h
a
t
di
vi
d
e
s
t
he
a
udi
o
s
i
g
na
l
fr
e
qu
e
nc
y
i
nt
o
a
h
i
gh
s
ub
-
b
a
nd
a
nd
a
l
ow
s
ub
-
ba
n
d
w
i
t
h
D
W
T
m
e
t
hod
,
l
a
t
e
r
t
he
l
ow
s
ub
-
ba
nd
i
s
c
hos
e
n
a
s
t
he
e
m
b
e
dd
i
ng
l
o
c
a
t
i
on
.
A
ft
e
r
t
ha
t
,
t
h
e
c
om
pre
s
s
i
v
e
s
a
m
p
l
i
n
g
p
e
rfor
m
da
t
a
a
c
qu
i
s
i
t
i
on
from
t
he
bi
n
a
ry
i
m
a
ge
us
i
ng
bi
t
c
o
m
pr
e
s
s
i
on
a
nd
t
he
out
p
ut
i
s
be
e
nc
ryp
t
e
d
by
us
i
ng
RS
A
e
nc
rypt
i
on
a
l
g
ori
t
h
m
.
T
he
e
nc
ryp
t
i
on
p
roc
e
s
s
n
e
e
d
s
a
n
e
nc
ry
pt
i
on
ke
y
or
pub
l
i
c
k
e
y
t
h
a
t
ha
s
be
e
n
ge
ne
r
a
t
e
d
be
fo
re
by
us
i
ng
t
he
RS
A
a
l
g
ori
t
hm
.
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xt
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o
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bi
na
ry
i
m
a
ge
h
a
s
b
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n
proc
e
s
s
e
d
.
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he
e
m
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dd
i
ng
proc
e
s
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M
m
e
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hod
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de
n
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i
a
l
i
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m
a
t
i
o
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i
n
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qu
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he
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e
a
s
on
i
s
b
a
s
e
d
on
re
s
e
a
r
c
h
[
16]
w
h
i
c
h
s
t
a
t
e
s
t
h
a
t
e
m
be
dd
i
ng
t
he
i
nfor
m
a
t
i
o
n
m
e
s
s
a
g
e
a
t
l
ow
s
ub
-
b
a
nd
fre
q
ue
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c
y
c
a
n
produ
c
e
be
t
t
e
r
r
ob
us
t
ne
s
s
i
n
t
e
r
m
s
of
i
m
a
g
e
di
s
t
ort
i
on
c
a
us
e
d
b
y
L
P
F
.
H
e
re
'
s
t
he
for
m
ul
a
f
or
t
he
S
M
M
e
m
be
dd
i
ng
t
e
c
h
ni
qu
e
[17]
:
f
or
‘1’
b
i
t
va
l
ue
:
(
)
=
(
)
−
+
.
(1)
f
or
‘0’
b
i
t
va
l
ue
:
(
)
=
(
)
−
−
.
(2)
w
i
t
h
(
)
i
s
a
s
i
gn
a
l
i
n
t
he
w
a
v
e
l
e
t
d
om
a
i
n
,
i
s
t
h
e
a
ve
r
a
g
e
s
i
gn
a
l
of
(
)
,
i
s
a
re
l
i
a
bi
l
i
t
y
fa
c
t
o
r
i
n
S
M
M
t
h
a
t
e
ns
ur
e
s
t
he
e
m
b
e
dd
i
ng
re
l
i
a
bi
l
i
t
y,
i
s
e
m
b
e
dde
d
m
e
s
s
a
ge
bi
t
s
i
n
for
m
a
t
i
on
,
a
nd
(
)
i
s
t
h
e
a
ud
i
o
t
ha
t
ha
s
be
e
n
e
m
b
e
dd
e
d
w
i
t
h
c
onfi
de
n
t
i
a
l
i
nfor
m
a
t
i
o
n.
A
f
t
e
r
t
ha
t
,
p
e
rfo
rm
i
nv
e
rs
e
t
o
un
i
t
e
t
h
e
t
w
o
pr
e
vi
o
us
l
y
di
vi
d
e
d
s
ub
-
b
a
nds
i
n
t
o
w
hol
e
s
t
e
go
-
a
ud
i
o
or
a
u
di
o
w
i
t
h
c
on
fi
de
nt
i
a
l
i
nfor
m
a
t
i
on
m
e
s
s
a
ge
t
ha
t
a
re
s
u
c
c
e
s
s
ful
l
y
e
m
b
e
d
ed
i
nt
o
i
t
.
T
he
e
m
b
e
ddi
ng
p
roc
e
s
s
i
s
s
how
n
i
n
F
i
gur
e
2.
F
i
gure
2
.
T
he
e
m
b
e
dd
i
ng
proc
e
s
s
f
l
ow
c
h
a
rt
3.
2
.
Extr
a
c
ti
on
s
ys
te
m
d
e
s
i
gn
T
he
e
x
t
ra
c
t
i
on
pr
oc
e
s
s
of
a
bi
na
ry
i
m
a
g
e
fr
om
t
h
e
di
gi
t
a
l
a
ud
i
o
fi
l
e
on
a
udi
o
s
t
e
ga
n
ogra
phy
s
ys
t
e
m
i
s
be
i
ng
do
ne
by
us
i
n
g
t
he
D
W
T
-
S
M
M
m
e
t
h
od
t
hro
ugh
a
D
W
T
i
nve
rs
e
p
roc
e
s
s
t
he
n
d
e
c
ry
pt
e
d
w
i
t
h
t
he
RS
A
de
c
ry
pt
i
on
a
l
gor
i
t
h
m
a
n
d
pe
r
form
CS
re
c
ons
t
ru
c
t
i
on
t
o
re
ve
a
l
t
h
e
m
e
s
s
a
ge
i
nfor
m
a
t
i
o
n.
T
he
proc
e
s
s
i
s
s
i
m
i
l
a
r
t
o
t
h
e
e
m
be
dd
i
ng
proc
e
s
s
,
w
h
i
c
h
i
s
t
o
pr
oc
e
s
s
t
h
e
s
t
e
go
-
a
udi
o
t
hrough
t
h
e
s
ub
-
b
a
nd
fre
que
n
c
y
d
i
vi
di
ng
pro
c
e
s
s
w
i
t
h
D
W
T
.
T
he
l
ow
s
ub
-
b
a
nd
fr
e
qu
e
nc
y
i
s
pro
c
e
s
s
e
d
be
c
a
us
e
t
h
e
e
m
b
e
dde
d
bi
n
a
ry
i
m
a
ge
a
s
t
he
m
e
s
s
a
g
e
i
nfor
m
a
t
i
on
i
s
e
m
be
dd
ed
a
t
t
he
l
ow
s
ub
-
b
a
nd
f
re
qu
e
n
c
y.
A
f
t
e
r
s
u
c
c
e
s
s
ful
l
y
e
x
t
ra
c
t
i
ng
t
he
b
i
na
ry
i
m
a
g
e
t
he
n
i
t
ha
s
s
u
c
c
e
s
s
ful
l
y
de
c
ryp
t
e
d
by
us
i
ng
RS
A
de
c
ryp
t
i
on
a
l
g
ori
t
h
m
w
i
t
h
a
de
c
ryp
t
i
o
n
ke
y
or
p
ri
v
a
t
e
ke
y
t
ha
t
ha
s
be
e
n
ge
ne
r
a
t
e
d
b
e
for
e
by
us
i
ng
t
h
e
RS
A
a
l
g
ori
t
hm
.
T
he
ne
xt
proc
e
s
s
i
s
t
o
re
c
ons
t
ruc
t
t
he
bi
t
da
t
a
of
t
he
bi
n
a
ry
i
m
a
ge
b
y
us
i
ng
CS
,
s
o
t
h
a
t
t
he
bi
n
a
ry
i
m
a
ge
c
a
n
b
e
r
e
ve
a
l
e
d
a
g
a
i
n
.
T
he
m
od
e
l
d
e
s
i
gn
p
roc
e
s
s
i
s
s
how
n
i
n
F
i
gure
3
.
3.
3
.
P
r
e
-
p
r
o
c
e
s
s
i
n
g
an
d
C
S
a
c
q
u
i
s
i
ti
on
p
r
o
c
e
s
s
T
hi
s
s
t
a
g
e
i
s
do
ne
b
e
for
e
t
he
da
t
a
fr
om
t
he
i
nfo
rm
a
t
i
on
m
e
s
s
a
ge
i
s
e
m
be
d
d
e
d
i
nt
o
t
h
e
hos
t
a
ud
i
o
.
D
a
t
a
from
t
h
e
i
n
for
m
a
t
i
on
m
e
s
s
a
ge
t
h
a
t
t
h
rough
t
h
e
a
c
qu
i
s
i
t
i
on
p
roc
e
s
s
i
s
a
bi
na
ry
i
m
a
g
e
w
i
t
h
m
a
t
r
i
x
s
i
z
e
×
.
Bri
e
f
l
y
,
t
he
CS
a
c
q
ui
s
i
t
i
on
pro
c
e
s
s
ha
s
s
u
c
c
e
s
s
ful
l
y
c
om
pre
s
s
ed
t
h
e
m
a
t
ri
x
s
i
z
e
fro
m
t
he
bi
na
ry
i
m
a
ge
da
t
a
by
t
he
pr
e
de
t
e
r
m
i
ne
d
c
om
p
re
s
s
i
on
r
a
t
i
o
va
l
ue
.
S
o,
i
t
c
a
n
h
i
d
e
t
h
e
i
n
t
e
nd
e
d
da
t
a
i
n
m
e
s
s
a
ge
s
w
hi
l
e
m
i
n
i
m
i
z
i
ng
i
t
s
s
i
z
e
,
e
na
b
l
i
ng
us
t
o
t
ra
ns
f
e
r
t
h
e
da
t
a
w
i
t
h
l
e
s
s
ov
e
ra
l
l
b
urde
n
i
n
c
a
p
a
c
i
t
y
[1
8
].
CS
c
a
n
be
fo
rm
u
l
a
t
e
d
a
s
fol
l
ow
s
[
1
9]
:
=
+
(3)
w
i
t
h
i
s
m
a
t
ri
x
for
m
of
×
c
o
m
m
onl
y
re
f
e
rr
e
d
t
o
a
s
s
e
ns
i
ng
m
a
t
r
i
x
w
ho
prov
i
de
t
h
e
i
nfor
m
a
t
i
o
n
a
bout
,
w
hi
l
e
i
s
s
t
oc
h
a
s
t
i
c
or
a
n
e
rro
r
t
e
rm
t
ha
t
d
e
f
i
ni
t
e
l
y
oc
c
ur
w
i
t
h
l
i
m
i
t
e
d
e
ne
rgy
.
T
he
m
ode
l
de
s
i
gn
pro
c
e
s
s
i
s
s
how
n
i
n
F
i
g
ure
4
.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
1693
-
6
930
T
E
L
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A
T
e
l
e
c
om
m
un
Co
m
put
E
l
Con
t
rol
,
V
ol
.
18
,
N
o.
2
,
A
pri
l
2
020:
1095
-
1104
1098
F
i
gure
3
.
T
he
e
xt
r
a
c
t
i
on
pro
c
e
ss
F
i
gure
4
.
P
r
e
-
pro
c
e
s
s
i
n
g
a
nd
CS
a
c
q
ui
s
i
t
i
on
d
i
a
gr
a
m
T
he
s
t
a
ge
s
of
t
h
e
pr
oc
e
s
s
a
r
e
de
s
c
ri
b
e
d
a
s
fol
l
ow
s
:
-
Re
a
d
t
he
bi
n
a
ry
i
m
a
ge
fi
l
e
s
i
n
a
t
w
o
-
di
m
e
ns
i
ona
l
m
a
t
ri
x
(
,
)
.
-
Cha
ng
e
t
he
s
ha
pe
of
t
he
m
a
t
ri
x
by
s
e
t
t
i
n
g
t
he
m
a
t
r
i
x
c
o
l
um
n
t
o
8
a
s
i
nput
b
e
for
e
b
e
i
n
g
pr
oc
e
s
s
e
d
i
n
CS
.
So
,
w
h
e
n
e
nt
e
ri
n
g
t
h
e
CS
pro
c
e
s
s
,
t
h
e
l
e
ngt
h
of
t
h
e
m
a
t
ri
x
c
o
l
u
m
n
b
e
c
o
m
e
s
25
6
w
i
t
h
a
d
j
us
t
i
ng
t
he
row
l
e
ngt
h
of
t
h
e
m
a
t
r
i
x
.
T
he
ou
t
put
i
s
(
′
,
′
)
.
-
Conve
r
t
s
t
he
pr
e
vi
o
us
l
y
m
od
i
fi
e
d
m
a
t
r
i
x
i
n
t
o
de
c
i
m
a
l
.
T
h
e
o
ut
put
i
s
(
′′
,
′′
)
.
-
G
e
ne
r
a
t
e
s
i
m
pul
s
e
s
w
i
t
h
a
m
a
t
ri
x
c
ol
um
n
l
e
ngt
h
of
256
.
In
t
he
CS
c
onc
e
pt
,
t
he
i
npu
t
m
a
t
r
i
x
m
us
t
b
e
s
pa
rs
e
,
m
e
a
ns
t
ha
t
t
he
v
a
l
u
e
0
of
t
e
n
a
ppe
a
rs
.
-
P
e
rform
s
c
a
l
a
r
m
ul
t
i
p
l
i
c
a
t
i
on
pn
t
he
m
a
t
r
i
x
s
o
t
he
out
put
(
)
i
s
obt
a
i
ne
d,
na
m
e
l
y
b
i
na
ry
i
m
a
ge
da
t
a
t
ha
t
w
a
s
s
u
c
c
e
s
s
ful
l
y
t
hrough
t
he
a
c
qu
i
s
i
t
i
on
proc
e
s
s
.
-
T
he
for
m
of
t
he
ou
t
pu
t
d
a
t
a
f
rom
(
)
i
s
b
i
n
a
ry
da
t
a
.
3.
4
.
P
os
t
-
p
r
o
c
e
s
s
i
n
g
an
d
C
S
r
e
c
on
s
t
r
u
c
ti
on
p
r
oc
e
s
s
T
hi
s
s
t
a
g
e
i
s
don
e
a
ft
e
r
t
h
e
da
t
a
fro
m
t
he
i
nfor
m
a
t
i
on
m
e
s
s
a
ge
i
s
e
xt
ra
c
t
e
d
a
nd
d
e
c
ryp
t
e
d
f
rom
s
t
e
go
-
a
udi
o
.
D
a
t
a
fro
m
t
he
i
nf
orm
a
t
i
on
m
e
s
s
a
ge
t
h
a
t
t
h
rough
t
he
re
c
on
s
t
r
uc
t
i
on
pro
c
e
s
s
i
s
a
b
i
na
r
y
i
m
a
ge
w
i
t
h
m
a
t
ri
x
s
i
z
e
×
.
Bri
e
f
l
y,
t
h
e
CS
r
e
c
ons
t
ru
c
t
i
on
p
roc
e
s
s
h
a
s
s
uc
c
e
s
s
ful
l
y
r
e
s
t
or
e
d
t
h
e
m
a
t
ri
x
s
i
z
e
fro
m
t
he
b
i
na
ry
i
m
a
g
e
d
a
t
a
fro
m
t
h
e
pr
e
vi
ous
p
roc
e
s
s
t
o
t
he
or
i
g
i
na
l
s
i
z
e
.
C
om
pre
s
s
i
b
l
e
s
i
gna
l
c
a
n
b
e
re
c
ov
e
re
d
from
a
s
e
t
of
fe
w
m
e
a
s
ure
m
e
n
t
s
.
I
n
fa
c
t
,
t
h
i
s
i
s
a
k
e
y
e
l
e
m
e
nt
of
CS
a
nd
how
t
he
s
e
ns
i
ng
pro
c
e
s
s
r
e
l
a
t
e
s
t
o
t
he
s
p
a
rs
e
re
p
re
s
e
nt
a
t
i
o
n
d
e
t
e
rm
i
ne
s
w
he
t
he
r
a
s
i
gn
a
l
c
a
n
b
e
re
c
ov
e
re
d
or
not
fro
m
t
he
m
e
a
s
ur
e
m
e
nt
s
[
20
]
.
T
he
m
ode
l
d
e
s
i
g
n
pr
oc
e
s
s
i
s
s
how
n
i
n
F
i
gur
e
5
.
3.
5
.
RSA
e
n
c
r
yp
ti
on
p
r
o
c
e
s
s
T
hi
s
s
t
a
g
e
i
s
don
e
b
e
for
e
t
he
i
n
form
a
t
i
on
da
t
a
i
s
e
m
be
dd
e
d
i
nt
o
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a
l
s
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a
f
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go
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t
hrough
t
he
CS
p
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p
urpos
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of
t
h
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n
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ryp
t
i
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ure
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bi
n
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a
pub
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i
c
e
nc
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pt
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on
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F
i
gur
e
6
i
s
i
l
l
us
t
ra
t
e
d
t
ha
t
b
e
for
e
e
nt
e
ri
ng
t
he
e
nc
ry
pt
i
on
pro
c
e
s
s
,
i
m
a
g
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d
a
t
a
i
n
t
h
e
for
m
of
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na
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t
a
m
us
t
b
e
c
onve
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t
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d
t
o
d
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c
i
m
a
l
.
A
ft
e
r
t
he
e
nc
r
ypt
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s
s
w
a
s
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c
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ful
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h
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t
a
c
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d
b
a
c
k
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nt
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na
ry
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m
. S
o
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i
t
c
a
n
be
pro
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d
a
ga
i
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x
t
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t
a
g
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,
w
hi
c
h
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s
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m
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Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
K
O
M
N
IK
A
T
e
l
e
c
om
m
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t
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bas
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gan
ogr
aph
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t
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(
F
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k
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i
A
dhana
di
)
1099
F
i
gure
5
.
P
os
t
-
proc
e
s
s
i
ng
a
nd
CS
r
e
c
ons
t
ruc
t
i
o
n
f
l
ow
c
ha
r
t
F
i
gure
6
.
F
l
ow
c
h
a
rt
of
RS
A
e
nc
rypt
i
on
pro
c
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s
s
3.
6
.
I
mage
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e
c
r
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ti
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p
r
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s
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T
hi
s
s
t
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s
don
e
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ft
e
r
t
h
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nfor
m
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t
i
on
da
t
a
ha
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e
n
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xt
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a
c
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e
d
f
rom
s
t
e
go
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udi
o.
T
he
purp
os
e
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t
he
d
e
c
r
ypt
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on
pro
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de
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ge
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ra
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t
e
d
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i
n
g
t
h
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pri
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d
e
c
ry
pt
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y
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h
e
de
c
ryp
t
i
on
p
roc
e
s
s
m
or
e
or
l
e
s
s
h
a
s
t
h
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s
a
m
e
pro
c
e
dur
e
a
s
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n
t
h
e
e
n
c
ryp
t
i
on
proc
e
s
s
a
s
s
how
n
i
n
F
i
gure
7
.
F
i
gure
7
.
F
l
ow
c
h
a
rt
of
RS
A
d
e
c
rypt
i
on
pro
c
e
s
s
4.
R
ES
U
LT
A
N
D
A
N
A
LY
S
I
S
S
ys
t
e
m
t
e
s
t
i
ng
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s
do
ne
by
us
i
ng
t
w
o
s
c
h
e
m
e
s
.
T
he
f
i
rs
t
s
c
he
m
e
i
s
don
e
w
i
t
h
non
-
opt
i
m
i
z
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d
pa
r
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r
e
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us
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d
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ow
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rds
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m
p
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om
s
t
e
go
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rge
c
a
pa
c
i
t
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T
h
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s
e
c
ond
s
c
he
m
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s
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t
h
op
t
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m
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r
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m
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on
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re
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pos
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d
s
t
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n
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phy
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ys
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on
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he
p
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r
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m
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Bi
t
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or
Ra
t
e
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pa
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b
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t
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ve
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d
e
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e
a
k
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Ra
t
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o
(P
S
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R),
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t
ru
c
t
ur
a
l
S
i
m
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l
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ri
t
y
Inde
x
M
a
t
ri
x
(S
S
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)
.
B
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v
a
l
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s
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t
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d
by
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pe
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ge
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l
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t
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d
re
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ve
r
a
l
l
b
i
t
pri
or
t
o
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ns
e
r
t
i
o
n
[2
1
].
Ca
p
a
c
i
t
y
(C)
or
pa
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l
oa
d
d
a
t
a
re
fe
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nu
m
b
e
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t
s
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dd
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d
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t
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un
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t
t
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m
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e
a
s
ure
d
i
n
bi
t
s
pe
r
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e
c
o
nd
(b
ps
)
[2
2
]
.
T
he
obj
e
c
t
i
v
e
qu
a
l
i
t
y
o
f
t
h
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m
od
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e
d
a
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o
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gn
a
l
w
hi
c
h
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s
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t
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v
a
l
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e
r
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e
s
t
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rt
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m
-
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t
o
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D
G
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w
hi
c
h
m
e
a
ns
t
he
a
udi
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qu
a
l
i
t
y
imp
e
rc
e
pt
i
bl
e
[2
3
]
.
P
S
N
R
i
s
t
he
r
a
t
i
o
be
t
w
e
e
n
t
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m
a
xi
m
um
va
l
u
e
of
t
h
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m
e
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s
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e
d
bi
t
de
p
t
h
of
t
h
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m
a
g
e
a
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t
he
a
m
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s
e
t
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t
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ff
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t
s
t
h
e
s
i
gn
a
l
.
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i
s
us
u
a
l
l
y
m
e
a
s
ure
d
i
n
uni
t
s
(dB)
.
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he
g
re
a
t
e
r
t
h
e
P
S
N
R
va
l
u
e
,
t
h
e
b
e
t
t
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t
h
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m
a
g
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qu
a
l
i
t
y
or
c
l
os
e
r
t
o
t
he
or
i
gi
n
a
l
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m
a
g
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.
S
S
IM
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s
a
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nd
e
x
t
o
m
e
a
s
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t
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de
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re
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of
s
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m
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n
t
he
t
w
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m
a
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s
,
t
he
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m
a
ge
a
ft
e
r
pro
c
e
s
s
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n
g
c
om
p
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re
d
t
o
t
he
or
i
gi
n
a
l
i
m
a
ge
.
S
S
IM
c
o
m
pa
re
s
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N
:
1693
-
6
930
T
E
L
K
O
M
N
IK
A
T
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l
e
c
om
m
un
Co
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put
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Con
t
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V
ol
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18
,
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o.
2
,
A
pri
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2
020:
1095
-
1104
1100
di
s
t
or
t
i
on
fro
m
l
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m
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na
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c
e
,
c
on
t
ra
s
t
a
nd
s
t
ru
c
t
u
ra
l
.
T
he
S
S
I
M
va
l
ue
of
0
m
e
a
ns
t
he
re
i
s
no
s
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m
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l
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ri
t
y
be
t
w
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e
n
t
he
t
w
o
i
m
a
ge
s
,
w
hi
l
e
t
he
v
a
l
ue
of
S
S
IM
1
m
e
a
ns
t
ha
t
t
h
e
t
w
o
i
m
a
g
e
s
be
i
ng
c
om
pa
r
e
d
a
re
ve
ry
i
de
nt
i
c
a
l
[2
4
].
T
h
e
t
e
s
t
i
n
vol
v
e
s
f
i
ve
di
f
fe
r
e
nt
t
yp
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o
f
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o
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c
h
a
s
v
oi
c
e
,
p
i
a
no
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gui
t
a
r
,
d
rum
,
a
nd
orc
he
s
t
ra
. T
h
e
i
nfo
rm
a
t
i
on
m
e
s
s
a
ge
t
ha
t
e
m
be
dd
e
d
i
n
t
o
hos
t
a
udi
o
i
s
a
b
i
na
ry
i
m
a
g
e
w
i
t
h
a
s
i
z
e
of
64
×
64
pi
xe
l
t
ha
t
e
n
c
ryp
t
e
d
by
us
i
ng
a
p
a
i
r
of
k
e
ys
t
ha
t
ha
ve
b
e
e
n
g
e
ne
r
a
t
e
d
w
i
t
h
t
h
e
RS
A
a
l
gor
i
t
h
m
.
F
i
gu
re
8
i
s
a
b
i
na
r
y
i
m
a
ge
t
h
a
t
i
s
i
ns
e
rt
e
d
i
nt
o
t
he
a
udi
o
.
4.
1
.
C
omp
r
e
s
s
i
v
e
s
a
mp
l
i
n
g
p
e
r
fo
r
man
c
e
CS
pe
r
for
m
a
n
c
e
t
e
s
t
i
ng
on
bi
n
a
ry
i
m
a
g
e
s
i
s
b
a
s
e
d
on
t
h
e
p
a
ra
m
e
t
e
r
of
t
h
e
bi
t
c
o
m
pre
s
s
i
on
ra
t
i
o
a
t
0.
02
w
i
t
h
s
i
d
e
p
a
ra
m
e
t
e
rs
t
ha
t
c
h
a
ng
e
d
s
t
a
rt
i
ng
fro
m
us
i
n
g
s
i
de
s
8
,
16,
32
a
n
d
64
.
T
h
e
s
e
l
e
c
t
i
on
of
b
i
t
c
om
p
re
s
s
i
on
ra
t
i
o
i
s
0
.
02
be
c
a
us
e
i
t
p
rodu
c
e
s
a
n
i
m
a
ge
c
o
m
p
re
s
s
i
on
r
a
t
i
o
o
f
62
.
52%
w
he
n
c
om
p
a
re
d
t
o
t
h
e
b
i
t
c
om
p
re
s
s
i
on
r
a
t
i
o
of
0
.
025
or
0.
0
3
w
i
t
h
t
h
e
i
m
a
ge
c
om
pre
s
s
i
on
ra
t
i
o
of
75%
a
n
d
1
00%
.
T
he
s
m
a
l
l
e
r
t
he
p
e
rc
e
n
t
a
g
e
c
om
pr
e
s
s
i
on
v
a
l
ue
of
t
h
e
i
m
a
g
e
,
t
h
e
l
e
s
s
t
h
e
nu
m
be
r
of
c
ons
t
i
t
u
e
nt
b
i
t
s
t
ha
t
a
ff
e
c
t
t
he
c
o
m
pu
t
a
t
i
on
t
i
m
e
.
F
i
gure
9
prov
i
de
s
a
c
om
pr
e
s
s
e
d
i
m
a
ge
s
c
o
m
pa
r
i
s
on
w
i
t
h
d
i
ffe
re
n
t
s
i
de
va
l
u
e
s
.
Ba
s
e
d
on
F
i
g
ure
9
,
i
t
c
a
n
b
e
c
on
c
l
ude
d
t
ha
t
t
h
e
s
m
a
l
l
e
r
t
h
e
v
a
l
u
e
s
i
de
,
t
h
e
qua
l
i
t
y
of
t
h
e
c
o
m
pr
e
s
s
e
d
i
m
a
ge
i
s
g
e
t
t
i
ng
w
ors
e
.
S
i
d
e
64
produ
c
e
s
c
om
pr
e
s
s
e
d
i
m
a
g
e
s
w
i
t
h
good
qu
a
l
i
t
y
.
T
h
i
s
i
s
c
a
us
e
d
by
t
h
e
bi
t
c
om
p
re
s
s
i
on
pro
c
e
s
s
w
hi
c
h
re
du
c
e
s
t
h
e
num
be
r
of
bi
t
s
i
n
t
he
bi
n
a
ry
i
ns
e
rt
i
m
a
g
e
.
(a
)
(b)
S
i
de
=
8
S
i
de
=
16
S
i
de
=
32
S
i
de
=
64
F
i
gure
8
.
Info
rm
a
t
i
on
m
e
s
s
a
g
e
F
i
gure
9
.
CS
c
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m
pr
e
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on
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m
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g
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pa
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4.
2
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RSA
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l
go
r
i
th
m
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e
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hi
s
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a
g
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s
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hoos
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ng
t
h
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rs
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ha
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ve
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t
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ry
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rypt
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m
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g
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a
r
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i
rs
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ne
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hou
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.
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o
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s
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d
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ful
l
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ry
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ryp
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m
t
h
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t
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nogr
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phy
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ys
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e
m
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RS
A
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l
g
ori
t
hm
ha
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l
i
m
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t
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h
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om
b
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d
w
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t
he
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M
m
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p
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n
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ng
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xt
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a
c
t
i
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n
p
roc
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s
s
.
T
h
e
va
l
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of
p
=
7
a
nd
t
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v
a
l
u
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of
q
=
11
i
s
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hos
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t
o
ge
n
e
r
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t
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t
he
e
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rypt
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p
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r
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c
rypt
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on
,
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c
a
us
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t
h
a
t
va
l
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e
pr
oduc
e
s
b
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rror
ra
t
e
(
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R
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≠
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a
nd
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uc
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e
s
s
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l
l
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n
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n
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m
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a
t
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how
n
i
n
T
a
b
l
e
1
.
T
he
r
e
s
ul
t
of
t
h
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e
nc
ry
pt
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on
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y
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nd
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ryp
t
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ke
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s
s
uc
c
e
s
s
ful
l
y
ge
n
e
r
a
t
e
d
7
a
n
d
43
by
us
i
ng
t
he
v
a
l
u
e
of
p
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nd
q
a
r
e
s
e
l
e
c
t
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d
.
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a
s
e
d
o
n
t
h
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va
l
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k
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y
c
a
n
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c
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t
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gor
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d
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s
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ke
y
w
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t
h
t
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n
um
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r
of
bi
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s
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qua
l
t
o
8
.
A
c
c
or
di
ng
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o
[25]
,
t
he
ke
y
w
i
t
h
t
h
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n
um
b
e
r
of
bi
t
s
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ua
l
t
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32
c
a
n
b
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c
r
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d
by
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a
k
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s
35
.
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m
i
nu
t
e
s
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hi
l
e
t
he
ke
y
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t
h
t
h
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nu
m
b
e
r
of
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qu
a
l
t
o
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e
d
on
l
y
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a
k
e
s
1
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2
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s
.
It
c
a
n
be
c
onc
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ude
d
t
ha
t
t
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a
t
e
r
t
he
nu
m
be
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t
s
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t
he
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or
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d
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ff
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c
ul
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ow
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r
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he
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n
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c
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s
i
s
l
a
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t
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l
onge
r
.
T
a
b
l
e
1
.
T
he
c
om
p
ut
a
t
i
o
na
l
t
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m
e
of
RS
A
e
nc
r
ypt
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on
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c
r
ypt
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o
n
P
ro
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Co
m
p
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T
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3
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z
e
d
p
ar
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me
t
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p
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r
for
man
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In
t
hi
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w
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t
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t
hi
s
s
c
h
e
m
e
by
us
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u
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for
m
non
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o
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m
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d
pa
ra
m
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pos
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t
i
on
l
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v
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(n)
,
l
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ngt
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of
t
h
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fra
m
e
(N
fr
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m
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)
a
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t
h
re
s
hol
d
(t
hr)
s
e
qu
e
nt
i
a
l
l
y
w
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t
h
1
,
1024
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n
d
0
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9
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s
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nput
v
a
l
u
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s
.
R
e
l
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bi
l
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t
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f
a
c
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or
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i
s
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p
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ra
m
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l
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t
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s
a
d
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ffe
r
e
n
t
v
a
l
ue
for
e
a
c
h
a
udi
o
.
T
h
e
va
l
ue
of
r
e
l
i
a
b
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t
y
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t
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r
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r
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yp
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u
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t
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r,
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ra
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on
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rde
r
a
re
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0015
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0055
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0
035
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003
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n
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h
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r
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t
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m
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he
CS
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us
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rom
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t
h
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z
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n
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e
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ns
t
h
a
t
t
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e
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dd
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s
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s
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a
s
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e
r
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h
e
n
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o
m
p
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o
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t
h
out
us
i
ng
CS
.
M
ov
i
ng
on
t
o
t
h
e
a
v
e
ra
g
e
va
l
ue
of
BE
R
a
na
l
ys
i
s
t
h
a
t
o
bt
a
i
n
e
d
fro
m
ni
ne
t
ype
s
of
a
ud
i
o
a
t
t
a
c
ks
by
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i
ng
no
n
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opt
i
m
i
z
e
d
p
a
ra
m
e
t
e
rs
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s
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how
n
i
n
F
i
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10
.
Ba
s
e
d
on
t
h
e
d
a
t
a
c
ont
a
i
n
e
d
i
n
F
i
g
ure
8
t
h
e
a
ve
r
a
ge
v
a
l
u
e
of
BE
R
obt
a
i
ne
d
by
e
a
c
h
t
ype
of
a
udi
o
a
t
t
a
c
k
c
a
n
b
e
c
a
t
e
gori
z
e
d
a
s
b
a
d
v
a
l
u
e
be
c
a
us
e
t
he
a
ve
ra
g
e
v
a
l
u
e
re
s
u
l
t
t
ouc
he
s
t
he
nu
m
b
e
r
0
.
5.
If
i
t
c
o
nve
r
t
e
d
i
n
p
e
rc
e
n
t
a
g
e
form
,
t
h
e
e
rror
i
n
t
he
bi
na
ry
i
m
a
ge
c
o
m
p
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l
e
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b
i
t
r
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a
c
he
s
50%
.
T
a
b
l
e
2
.
Co
m
pu
t
i
n
g
t
i
m
e
c
o
m
p
a
ri
s
on
S
c
h
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m
e
E
m
b
e
d
d
i
n
g
T
i
m
e
E
x
t
ra
c
t
i
o
n
T
i
m
e
W
i
t
h
C
S
1
.
3
1
9
s
e
c
o
n
d
0
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8
0
1
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e
c
o
n
d
W
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t
h
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u
t
CS
1
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9
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c
o
n
d
1
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1
1
7
3
7
2
s
e
c
o
n
d
F
i
gure
10
.
BE
R
r
e
s
ul
t
by
us
i
n
g
no
n
-
op
t
i
m
i
z
e
d
pa
ra
m
e
t
e
rs
4.
4
.
O
p
ti
m
i
z
e
d
p
a
r
am
e
te
r
s
s
c
h
e
m
e
p
e
r
fo
r
man
c
e
O
pt
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m
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z
e
d
pa
r
a
m
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t
e
rs
a
r
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o
bt
a
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n
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d
b
y
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va
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ua
t
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n
g
t
he
hi
ghe
s
t
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R
va
l
ue
i
n
non
-
opt
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m
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e
d
pa
r
a
m
e
t
e
rs
.
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o
t
ha
t
,
t
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p
a
r
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m
e
t
e
rs
for
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o
m
pos
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t
i
o
n
l
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ve
l
(n)
,
l
e
n
gt
h
of
t
he
fr
a
m
e
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fr
a
m
e
)
a
nd
t
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re
s
ho
l
d
(t
hr)
s
e
que
n
t
i
a
l
l
y
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t
h
2,
20
48
da
n
0.
9
a
s
i
npu
t
v
a
l
u
e
s
.
In
t
hi
s
s
c
h
e
m
e
,
t
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e
l
i
a
b
i
l
i
t
y
f
a
c
t
or
v
a
l
u
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(α)
a
l
s
o
c
h
a
ng
e
s
.
T
he
va
l
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of
re
l
i
a
bi
l
i
t
y
f
a
c
t
or
fo
r
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u
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o
t
yp
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vo
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c
e
,
p
i
a
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g
u
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t
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r,
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a
n
d
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t
ra
b
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s
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on
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rde
r
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r
e
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0003
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0
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0
0015
d
a
n
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.
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he
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e
a
r
e
t
w
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t
hi
ngs
t
h
a
t
a
re
a
na
l
yz
e
d
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h
a
s
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c
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n
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c
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p
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v
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l
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ft
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us
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n
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t
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op
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i
m
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d
p
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ra
m
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t
e
rs
a
nd
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u
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o
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us
t
ne
s
s
a
g
a
i
ns
t
t
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n
i
ne
t
ype
s
of
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t
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ks
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ha
t
ha
ve
be
e
n
m
e
n
t
i
on
e
d
e
a
r
l
i
e
r
.
F
i
gur
e
11
c
on
t
a
i
ns
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t
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on
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a
n
pi
t
c
h
s
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f
t
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a
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t
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c
k
w
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ge
va
l
u
e
of
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E
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i
s
0.
49
.
R
EF
ER
EN
C
ES
[
1]
A
.
K
.
S
a
x
e
na
,
S
.
S
i
n
ha
,
a
nd
P
.
S
hu
kl
a
,
“
D
e
s
i
gn
a
nd
d
e
v
e
l
op
m
e
n
t
o
f
i
m
a
ge
s
e
c
ur
i
t
y
T
e
c
h
ni
q
ue
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s
i
ng
c
r
yp
t
og
r
a
p
hy
a
nd
s
t
e
ga
n
ogr
a
phy
:
A
c
o
m
b
i
ne
a
p
pr
o
a
c
h
,
”
I
n
t
e
r
na
t
i
ona
l
J
our
na
l
o
f
I
m
age
,
G
r
aph
i
c
s
an
d
S
i
gn
al
P
r
o
c
e
s
s
i
ng
,
vol
.
10,
n
o.
4
,
pp.
1
3
–
21
,
201
8.
[
2]
I
.
A
.
S
a
t
t
a
r
a
nd
M
.
T
.
G
a
a
t
a
,
“
I
m
a
ge
s
t
e
ga
nog
r
a
p
hy
t
e
c
h
ni
q
ue
b
a
s
e
d
o
n
a
d
a
pt
i
v
e
r
a
ndo
m
k
e
y
g
e
ne
r
a
t
o
r
w
i
t
h
s
ui
t
a
b
l
e
c
ove
r
s
e
l
e
c
t
i
on
,
”
20
17
A
nnu
al
C
on
f
e
r
e
n
c
e
on
N
e
w
T
r
e
nd
s
i
n
I
n
f
o
r
m
at
i
o
n
&
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om
m
un
i
c
a
t
i
ons
T
e
c
h
nol
ogy
A
ppl
i
c
a
t
i
ons
(
N
T
I
C
T
)
,
p
p.
20
8
-
2
12
,
2
017
.
[
3]
F
.
D
j
e
bba
r
,
B
.
A
y
a
d
,
K
.
A
.
M
e
r
a
i
m
a
n
d
H
.
H
a
m
a
m
,
“
C
o
m
pa
r
a
t
i
v
e
s
t
udy
o
f
di
gi
t
a
l
a
ud
i
o
s
t
e
g
a
nog
r
a
phy
t
e
c
hn
i
q
ue
s
,
”
i
n
E
U
R
A
SI
P
J
our
na
l
on
A
ud
i
o
,
Sp
e
e
c
h,
a
nd
M
us
i
c
P
r
oc
e
s
s
i
ng
,
vo
l
.
12,
n
o.
1,
pp
.
1
-
16
,
201
2.
[
4]
S.
E.
El
-
K
ha
m
y
,
N.
O.
K
or
a
ny
a
n
d
M.
H.
El
-
S
he
r
i
f
,
“
A
s
e
c
ur
i
t
y
e
nh
a
nc
e
d
r
o
bus
t
a
u
di
o
s
t
e
ga
nog
r
a
ph
y
a
l
go
r
i
t
h
m
f
o
r
i
m
a
ge
h
i
di
ng
us
i
ng
s
a
m
p
l
e
c
o
m
pa
r
i
s
on
i
n
di
s
c
r
e
t
e
w
a
ve
l
e
t
t
r
a
ns
f
o
r
m
do
m
a
i
n
a
nd
R
S
A
e
nc
r
yp
t
i
on,
”
M
u
l
t
i
m
e
di
a
T
o
o
l
s
and
A
pp
l
i
c
at
i
on
s
,
v
ol
.
76
,
n
o.
22
,
p
p
.
2409
1
–
24
106
,
201
7.
[
5]
H.
N
i
k
m
e
hr
a
nd
S.
T
.
H
a
s
he
m
y
,
“
N
e
w
a
pp
r
oa
c
h
to
a
u
di
o
w
a
t
e
r
m
a
r
k
i
n
g
u
s
i
ng
D
i
s
c
r
e
t
e
W
a
ve
l
e
t
a
nd
C
os
i
n
e
T
r
a
n
s
f
o
r
m
s
,
”
1
st
I
n
t
e
r
na
t
i
o
nal
C
on
f
e
r
e
n
c
e
on
C
om
m
u
ni
c
at
i
on
E
ng
i
n
e
e
r
i
ng
,
2
010
.
[
6]
M
.
L
i
hua
,
Y
.
S
hua
ngyu
a
n
a
nd
J
.
Q
i
n
gs
h
a
n,
“
A
n
e
w
a
l
go
r
i
t
h
m
f
o
r
d
i
g
i
t
a
l
a
ud
i
o
w
a
t
e
r
m
a
r
ki
n
g
b
a
s
e
d
on
D
W
T
,
”
i
n
W
R
I
G
l
oba
l
C
ong
r
e
s
s
on
I
n
t
e
l
l
i
g
e
nt
S
y
s
t
e
m
s
,
pp
.
229
-
233
,
200
9.
[
7]
M.
Z
a
he
e
r
,
I.
M.
Q
u
r
e
s
hi
,
Z.
M
u
z
a
f
f
a
r
a
n
d
L.
A
s
l
a
m
,
“
C
o
m
pr
e
s
s
e
d
s
e
ns
i
ng
ba
s
e
d
i
m
a
ge
s
t
e
ga
n
ogr
a
phy
s
ys
t
e
m
f
o
r
s
e
c
u
r
e
t
r
a
ns
m
i
s
s
i
on
of
a
ud
i
o
m
e
s
s
a
ge
w
i
t
h
e
n
ha
n
c
e
d
s
e
c
u
r
i
t
y
,”
I
nt
e
r
na
t
i
ona
l
J
ou
r
na
l
of
C
om
p
ut
e
r
S
c
i
e
nc
e
an
d
N
e
t
w
o
r
k
Se
c
ur
i
t
y
,
vo
l
.
17,
n
o.
7
,
pp.
1
33
-
141
,
2017
.
[
8]
F
.
K
.
R
a
n
j
ba
r
a
nd
S
.
G
ho
f
r
a
ni
,
“
E
va
l
u
a
t
i
on
c
o
m
p
r
e
s
s
i
ve
s
e
ns
i
n
g
r
e
c
ove
r
y
a
l
g
or
i
t
hm
s
i
n
c
r
yp
t
o
s
t
e
ga
n
ogr
a
ph
y
s
ys
t
e
m
,
”
I
n
t
e
r
na
t
i
ona
l
J
our
na
l
o
f
I
m
a
ge
,
G
r
aph
i
c
s
and
S
i
gna
l
P
r
o
c
e
s
s
i
ng
(
I
J
I
G
SP
)
,
vo
l
.
8
,
no
.
10
,
p
p.
53
-
63
,
2
016
.
[
9]
S
.
V
a
r
g
h
e
s
e
a
nd
L
.
K
a
m
a
l
,
“
E
nha
nc
e
d
R
S
A
c
o
m
b
i
ne
d
w
i
t
h
D
W
T
d
om
a
i
n
w
a
t
e
r
m
a
r
k
i
n
g
,
”
i
n
I
n
t
e
r
na
t
i
ona
l
J
ou
r
na
l
of
M
od
e
r
n
E
ngi
ne
e
r
i
ng
R
e
s
e
a
r
c
h
,
vo
l
.
2,
no
.
2,
pp
.
18
-
20
,
201
2.
[
10]
P
.
P
a
t
e
l
a
nd
Y
.
P
a
t
e
l
,
“
S
e
c
ur
e
a
nd
a
ut
h
e
n
t
i
c
D
C
T
i
m
a
ge
s
t
e
g
a
nog
r
a
ph
y
t
h
r
ou
gh
D
W
T
-
S
V
D
ba
s
e
d
D
i
g
i
t
a
l
w
a
t
e
r
m
a
r
ki
ng
w
i
t
h
R
S
A
e
nc
r
yp
t
i
on
,
”
in
F
i
f
t
h
I
nt
e
r
na
t
i
ona
l
C
on
f
e
r
e
nc
e
on
C
om
m
uni
c
a
t
i
o
n
Sy
s
t
e
m
s
a
nd
N
e
t
w
or
k
T
e
c
hn
ol
o
gi
e
s
,
G
w
a
l
i
o
r
,
p
p.
73
6
-
7
39,
2015
.
[
11]
S
.
S
a
r
a
i
r
e
h,
“
A
s
e
c
u
r
e
d
a
t
a
c
o
m
m
un
i
c
a
t
i
on
s
ys
t
e
m
us
i
ng
c
r
yp
t
o
ga
p
hy
a
nd
s
t
e
g
a
no
gr
a
phy
,
”
i
n
I
n
t
e
r
na
t
i
ona
l
j
o
ur
na
l
of
C
om
pu
t
e
r
N
e
t
w
o
r
k
s
&
C
om
m
un
i
c
a
t
i
ons
,
vo
l
.
5
,
no
.
3,
pp
.
125
–
1
37,
20
13
[
12]
L
.
N
ov
a
m
i
z
a
nt
i
,
G
.
B
u
di
m
a
n,
a
nd
I
.
I
.
T
r
i
t
o
a
s
m
o
r
o
,
“
D
e
s
i
gni
n
g
s
e
c
ur
e
d
da
t
a
us
i
ng
a
c
o
m
b
i
na
t
i
on
o
f
L
Z
W
c
om
pr
e
s
s
i
on
,
R
S
A
e
nc
r
yp
t
i
o
n,
a
n
d
D
C
T
s
t
e
g
a
nog
r
a
p
hy
,
”
2015
1
st
I
nt
e
r
n
at
i
on
al
C
on
f
e
r
e
nc
e
on
W
i
r
e
l
e
s
s
and
T
e
l
e
m
at
i
c
s
(
I
C
W
T
)
,
pp
.
1
-
6,
20
15
.
[
13]
X.
W
e
n
,
X.
D
i
ng
,
J.
L
i
,
L.
G
a
o
a
n
d
H.
S
u
n,
“
An
A
ud
i
o
W
a
t
e
r
m
a
r
k
i
ng
A
l
gor
i
t
h
m
B
a
s
e
d
on
F
a
s
t
F
ou
r
i
e
r
T
r
a
n
s
f
or
m
,
”
i
n
I
nt
e
r
n
at
i
on
al
C
on
f
e
r
e
n
c
e
on
I
nf
o
r
m
a
t
i
o
n
M
a
nag
e
m
e
n
t
,
I
nno
v
at
i
o
n
M
an
age
m
e
nt
an
d
I
nd
us
t
r
i
al
E
ngi
ne
e
r
i
ng
,
v
o
l
.
1
,
p
p
.
3
6
3
-
3
6
6
,
2
009
.
[
14]
S
.
G
u
pt
a
a
nd
D
.
N
.
D
ha
n
da
,
“
A
udi
o
s
t
e
ga
n
ogr
a
ph
y
u
s
i
ng
di
s
c
r
e
t
e
w
a
v
e
l
e
t
t
r
a
n
s
f
or
m
a
t
i
on
(
D
W
T
)
&
d
i
s
c
r
e
t
e
c
o
s
i
ne
tr
a
ns
f
or
m
a
t
i
on
(
D
C
T
)
,
”
I
O
SR
J
our
n
al
o
f
C
om
pu
t
e
r
E
n
gi
n
e
e
r
i
n
g
,
vo
l
.
17
,
no
.
2,
pp
.
32
-
44
,
2015
.
[
15]
E
.
R
.
A
r
bo
l
e
da
,
J
.
L
.
B
a
l
a
ba
,
J
.
C
.
L
.
E
s
p
i
ne
l
i
,
“
C
h
a
o
t
i
c
R
i
ve
s
t
-
S
ha
m
i
r
-
A
d
l
e
r
m
a
n
a
l
go
r
i
t
h
m
w
i
t
h
da
t
a
e
n
c
r
y
pt
i
on
s
t
a
nda
r
d
s
c
he
du
l
i
ng
,
”
B
u
l
l
e
t
i
n
o
f
E
l
e
c
t
r
i
c
al
E
n
gi
n
e
e
r
i
n
g
a
nd
I
n
f
o
r
m
at
i
c
s
,
v
o
l
.
6
,
n
o.
3
,
pp
.
219
-
227
,
201
7.
[
16]
X.
-
Y
.
L
i
u
a
nd
X
.
-
Y
.
W
a
n
,
“
W
a
ve
l
e
t
ba
s
e
d
a
ne
w
m
e
t
hod
of
d
i
g
i
t
a
l
w
a
t
e
r
m
a
r
k
,
”
W
av
e
l
e
t
A
c
t
i
v
e
M
e
di
a
T
e
c
hn
ol
ogy
and
I
n
f
or
m
at
i
on
P
r
oc
e
s
s
i
ng
,
200
6.
[
17]
Y
.
L
i
n
a
nd
W
.
H
.
A
b
dul
l
a
,
“
A
udi
o
w
a
t
e
r
m
a
r
k
a
c
o
m
p
r
e
he
n
s
i
v
e
f
ou
nda
t
i
o
n
u
s
i
ng
M
A
T
L
A
B
,
”
S
w
i
t
z
e
r
l
a
nd
,
Spr
i
n
ge
r
I
nt
e
r
n
at
i
on
al
P
ub
l
i
s
h
i
ng
,
201
5.
[
18]
O
.
F
.
A
.
W
a
ha
b
,
A
.
I
.
H
u
s
s
e
i
n
,
H
.
F
.
A
.
H
a
m
e
d
,
H
.
M
.
K
e
l
a
s
h
,
A
.
A
.
M
.
K
h
a
l
a
f
,
a
nd
H
.
M
.
A
l
i
,
“
H
i
di
n
g
da
t
a
i
n
i
m
a
ge
s
us
i
ng
s
t
e
g
a
nog
r
a
p
hy
t
e
c
hn
i
qu
e
s
w
i
t
h
c
o
m
p
r
e
s
s
i
on
a
l
g
or
i
t
h
m
s
,
”
T
E
L
K
O
M
N
I
K
A
T
e
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[
19]
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.
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.
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.
W
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nal
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25,
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o.
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1
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24]
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25]
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t
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k
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don,
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Evaluation Warning : The document was created with Spire.PDF for Python.