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Таблица F5.A-1.4 Свертка 2-х векторов (r)X[t] и (r)H[t] длины T= 8 GF( 1 + 225 ) = GF( 1 + 232 ) = GF( F5 ) в (A-1)-арифметике, T–1 = 1/T = - 32. 0. 0. 1 Результаты в A-арифметике в 33-битовых числах = ПСАНВ± mod F5, т.е. в диапазоне [–231..+231] |
t |
(r)X[t] – вх.Сигнал |
(r)X[f]=ЧПФ((r)X[t]) |
(r)H[t] – вх.Сигнал |
(r)H[f]=ЧПФ((r)H[t]) |
(r)E[f]=(r)X[f]·(r)H[f] |
(r)E[t]=оЧПФ((r)E[f]) |
(r)G[t]=(r)E[t]/T mod F2 |
0 |
+ 0. 0. 0. 2 |
+ 0. 0. 0. 18 |
+ 0. 0. 0. 1 |
+ 0. 0. 0. 3 |
+ 0. 0. 0. 54 |
+ 0. 0. 0. 16 |
+ 0. 0. 0. 2 |
1 |
+ 0. 0. 0. 15 |
+ 0. 1. 15. 2 |
+ 0. 0. 0. 2 |
+ 0. 0. 2. 1 |
+ 2. 31. 19. 2 |
+ 0. 0. 0.152 |
+ 0. 0. 0. 19 |
2 |
+ 0. 0. 0. 1 |
+ 0. 15. 0. 1 |
0. 0. 0. 0 |
+ 0. 2. 0. 1 |
+ 0. 16.255.227 |
+ 0. 0. 0.248 |
+ 0. 0. 0. 31 |
3 |
0. 0. 0. 0 |
+ 14.255. 0. 2 |
0. 0. 0. 0 |
+ 2. 0. 0. 1 |
+ 18.225. 2. 2 |
+ 0. 0. 0. 16 |
+ 0. 0. 0. 2 |
4 |
0. 0. 0. 0 |
- 0. 0. 0. 13 |
0. 0. 0. 0 |
- 0. 0. 0. 2 |
+ 0. 0. 0. 12 |
0. 0. 0. 0 |
0. 0. 0. 0 |
5 |
0. 0. 0. 0 |
+ 0. 0.241. 2 |
0. 0. 0. 0 |
- 0. 0. 2. 0 |
- 1.225. 18.255 |
0. 0. 0. 0 |
0. 0. 0. 0 |
6 |
0. 0. 0. 0 |
- 0. 15. 0. 0 |
0. 0. 0. 0 |
- 0. 2. 0. 0 |
- 0. 17. 0. 30 |
0. 0. 0. 0 |
0. 0. 0. 0 |
7 |
0. 0. 0. 0 |
- 15. 0.255.255 |
0. 0. 0. 0 |
- 2. 0. 0. 0 |
- 19. 31. 1.255 |
0. 0. 0. 0 |
0. 0. 0. 0 |