A*b
B*a
:
2. .
, 2 ( 1) :
0.
(i) ,
.
,
.
, N=13 ( 2):
0.
T3=T(3,1:end)'
T*T3'
,
11 .
1 ( 1 3*3):
.
>> C = [-1 1 -1;
1 1 1;
-1 1 -1]
>> K = [];
>> for i = 1:7
for j = 1:7
Y = A(i:i+2, j:j+2);
k = C.*T;
K(i,j) = sum(sum(k));
End
End
3,
3.
3-1. ,
, , :
0.
1 1 1 1 1 1 1 1 1 -1 1 -1 1 -1 1 -1 1 1 -1 -1 1 1 -1 -1 1 -1 -1 1 1 -1 -1 1 1 1 1 1 -1 -1 -1 -1 1 -1 1 -1 -1 1 -1 1 1 1 -1 -1 -1 -1 1 1 1 -1 -1 1 -1 1 1 -1 |
|
|
|
=
3- .
:
=3*2*1=3 ,
>> = hadamard(8) = 1 1 1 1 1 1 1 1 1 -1 1 -1 1 -1 1 -1 1 1 -1 -1 1 1 -1 -1 1 -1 -1 1 1 -1 -1 1 1 1 1 1 -1 -1 -1 -1 1 -1 1 -1 -1 1 -1 1 1 1 -1 -1 -1 -1 1 1 1 -1 -1 1 -1 1 1 -1 |
.
|
|
2 :
:
>> = hadamard(8)
=
1 1 1 1 1 1 1 1
1 -1 1 -1 1 -1 1 -1
1 1 -1 -1 1 1 -1 -1
1 -1 -1 1 1 -1 -1 1
1 1 1 1 -1 -1 -1 -1
1 -1 1 -1 -1 1 -1 1
1 1 -1 -1 -1 -1 1 1
1 -1 -1 1 -1 1 1 -1
3-2. - , - , .
0:
D3 2- , D3 .
:
.
4. .
- N=8.( 1, );
- , .
S0: -1 -1 -1 -1 1 1 -1 -1
S5: 1 -1 -1 -1 -1 -1 -1 1
:
W8=
:
W = i- , N .
def(k,n) = Wkn, k - , n -
:
S0. W S0:
:
S=
-4
-3.4142 + 1.4142i
2 - 2i
0.5858 + 1.4142i
0.5858 - 1.4142i
2+ 2i
- 3.4142 - 1.4142i
- V :
Sp =V*S*(1/8)=
-1
-0.9997
-1
-1
0.9997
-1.
-1
S5. W S5:
W*S5=
-4
3.4140 + 1.4140i
2 + 2i
0.5850 + 1.4140i
0.5850 - 1.4140i
2 - 2i
-3.4140 - 1.4140i
S0 S5:
M=S0,*conj(S5)=
16.0000
-9.6560 + 9.6548i
-8i
1.6560 + 1.6572i
1.6560 - 1.6572i
8i
-9.6560 - 9.6548i
, M - V:
conj(W)*M
8, 5( 0) .
.
4 :
|
|
, :
2 :
2 , :