c
o
n
t
i
n
u
o
u
s
s
i
g
n
a
l
c
o
s
(
4
4
0
π
t
)
0
.
3
s
i
n
(
1
7
6
π
t
)
+
c
o
s
(
8
8
π
t
)
-
0
.
1
5
c
o
s
(
3
5
2
π
t
)
s
a
m
p
l
i
n
g
p
o
i
n
t
s
3
i
n
t
e
r
p
o
l
a
t
i
o
n
m
e
t
h
o
d
b
a
n
d
-
l
i
m
i
t
e
d