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{a(k)}s(t)
Hch(f)
w(t)
+r(t)
Htr(f)
{a(k)} H (f)
w(t)
+
r(t)
a(k) H (f)
w(t)
+
r(t)H*
(f)kT
z(k)
a(k) G(z)
n(k) ~Nc(0, N0g(i-j))
+ z(k)
a(k) H (f)
w(t)
+
r(t)H*
(f)kT
z(k)
a(k) G(z)
n(k) ~Nc(0, N0g(i-j))
+
z(k)
)z(FA
12
u(k)
)z(FA
12
u(k)
a(k) F+(z)
w(k) ~Nc(0, (N0/A2)(i-j))
+ u(k)
u0(k)
a(k) G(z)
n(k) ~Nc(0, N0g(i-j))
+
z(k)
a(k) F+(z)
w(k) ~Nc(0, (N0/A2)(i-j))
+ u(k)
)z(FA
12
u(k)
a(k) a(k-1) a(k-L)
f+(1) f+(L)
u0(k)
x x
+
z-1z-1z-1 ...
u(k)w(k)
a(k) S(k)
st(.,.)
out(.,.)
w(k)
u0(k)u(k)
S(k+1)
z-1
+
k
f+(k)f-(k)
k00
x1
11
x2
x3
x4
x5
(x1)*
(x2)*
(x3)*
(x4)*
(x5)*
k k+1
state
(1, 1)
(1, -1)
(-1, 1)
(-1, -1)
1|2.5
-1|0.5 1|1.5
-1|-0.5
1|0.5
-1|-1.51|-0.5
-1|-2.5
...
k k+1 k+2 k+3 k’ k’+1 k’+2 k’+3
state
(1, 1)
(1, -1)
(-1, 1)
(-1, -1)
(++)
(+0)
(0+)
(+-)
(0-)
(00)
(-0)
(-+)
(--)k+1k
(++)
(+0)
(0+)
(+-)
(0-)
(00)
(-0)
(-+)
(--)
20
8
5
2
5
13
6
14
6
6
6
6
4
7
22
14
10
15
7
15
7
7
k=0 k=1 k=2 k=3 k=4 k=5
9
16
0
4
4
16
0
36
4
0
4
16
0
(1,1)
(1,-1)
(-1,1)
(-1,-1)
k=0 k=1 k=2 k=3 k=4
0
4
16
0
36
4 16
0
4
40
16
16
4
0
4
(1,1)
(1,-1)
(-1,1)
(-1,-1)
k=0 k=1 k=2 k=3 k=4
0
0
16
4
0
4
1
9 1
25
9
4925
81
5
9
25
49
(1,1)
(1,-1)
(-1,1)
(-1,-1)
k=0 k=1 k=2 k=3 k=4
0
0
16
4
0
5
9
25
49
16
04
4
0
164
36
13
25
5
41
(1,1)
(1,-1)
(-1,1)
(-1,-1)
k=0 k=1 k=2 k=3 k=4
r(t)H*
(f)kT
z(k)
HLE(z)
u(k)symbol-by-symbol detector
)k(a
a(k)
GLE(z)
u0(k)
HLE(z)
n(k) ~ Nc(0, N0g(i-j))
w(t)
+ u(k)
a(k)
1/G(z)
n(k) ~ Nc(0, N0g(i-j))
+ u(k)
a(k) GLE(z) -1
HLE(z)
n(k) ~ Nc(0, N0g(i-j))
+ (k)
a(k) u0(k)
n(k) ~ Nc(0, N0g(i-j))
+ u(k))z(G
)z(G
)z(G
1
r(t)H*
(f)kT
z(k)
HFF(z)
u’(k)symbol-by-symbol detector
)k(a
+
u(k)
HFB(z)-
a(k)
G’DFE(z)
HFF(z)
n(k) ~ Nc(0, N0g(i-j))
+
u’(k)symbol-by-symbol detector
)k(a
+
u(k)
HFB(z)-
a(k)
GDFE(z)
HFF(z)
n(k) ~ Nc(0, N0g(i-j))
+
u(k)
n’(k)
a(k)
~ Nc(0, (N0/A2)(i-j))
+
u(k)
n’(k)
a(k)
GDFE(z) - 1
HFF(z)
n(k) ~ Nc(0, N0g(i-j))
+
(k)
n’(k)
a(k)
G(z)H’FF(z) - 1
H’FF(z)
n(k) ~ Nc(0, N0g(i-j))
+
’(k)
1 - HFB(z)
(k)
a(k)
n(k) ~ Nc(0, N0g(i-j))
+
n’(k)
u(k)
)z(FB1 2
)z(FB
12
r(t)H*
(f)kT
HFF(z)u’(k) r(t)
Hrec (f)kT
u’(k)
r(t)Hrec (f)
kT
u’(k)
HAA (f)r(t)
heq (n)iTs
u’(k)HAA (f)
Ns
z(k)
r(kNs+KFF1) r(kNs-KFF2)r(kNs+1) r(kNs) r(kNs-1)
heq(-KFF1) heq(KFF2)heq(-1) heq(0) heq(1)x x x x x
z-1/Ns z-1/Ns ......
z-1 z-1
x x x x
...
hFB(KFB-1) hFB(KFB)hFB(2)hFB(1)
)Kk(a FB)2k(a )1k(a
+
u’(k)
u(k)
r(kNs+KFF1) r(kNs-KFF2)r(kNs+1) r(kNs) r(kNs-1)
heq(-KFF1;k) heq(KFF2;k)heq(-1;k) heq(0;k) heq(1;k)x x x x x