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| 型号： | TPTDSCDMAWP |
| 英文描述： | Spatial Temporal Processing in TD-SCDMA |
| 中文描述： | 时间空间处理在TD - SCDMA |
| 文件页数： | 7/23页 |
| 文件大小： | 415K |
| 代理商： | TPTDSCDMAWP |
Spatial Temporal Processing in TD-SCDMA
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15
=
)
,
(
)
2
,
(
)
1
,
(
)
,
2
(
)
2
,
2
(
)
1
,
2
(
)
,
1
(
)
2
,
1
(
)
1
,
1
(
Ka
m
Ka
m
Ka
m
Ka
m
Ka
m
R
(24)
In (24), we have Rm
(i,j) = E{ n
m
(i)n
m
(j)H }
}
{
)
(
)
,
(
1
)
(
1
)
,
(
H
kj
d
j
kj
j
Ki
kj
ki
d
Ki
ki
i
ki
j
E
n
e
n
e
φ
=
∑
=
}
{
)
(
)
(
1
)]
,
(
)
,
(
[
H
ki
d
ki
d
Ki
ki
j
ki
i
ki
j
E
n
e
∑
=
=
φ
2
)
(
)
(
1
)]
,
(
)
,
(
[
~
ki
m
Ki
ki
j
ki
i
ki
j
σ
φ
R
e
∑
=
=
where
2
)
(
)
(
)
(
)
(
/
}
{
~
ki
H
ki
d
ki
d
ki
m
E
σ
n
R
=
. Notice that
)
(
~
ki
m
R
is the same for all Ki, Then let
)
(
~
ki
m
R
=
for all ki=1….Ki and
)]
,
(
)
,
(
[
1
2
)
(
*
,
)
(
j
ki
i
ki
j
Ki
ki
j
i
j
i
r
φ
σ
=
∑
=
e
we have
m
j
i
j
i
m
r R
R
~
,
)
,
(
=
for i,j = 1…..Ka and
m
d
m
R
~
=
(25)
where [Rd ]i,j = ri,j
The matrix
m
R
~
is a temporal covariance matrix and Rd is spatial covariance matrix.
From (10)
m
H
ka
m
H
ka
e
R
G
I
G
I
R
G
I
h
1
)
(
1
)
(
1
)
(
)
(
)}
(
)
{(
=
since
(I
(ka)
G )HR
m
-1
= (I
(ka)
G )H(R
d
-1
m
R
~ -1
)
= R
d
-1
GH
1
~
m
R
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