Таблица F4.A-1.4 Свертка 2-х векторов (r)X[t] и (r)H[t] длины T=16 GF( 1 + 224 ) = GF( 1 + 216 ) = GF( F4 ) в (A-1)-арифметике, T–1 = 1/T = - 16. 1 Результаты в A-арифметике в 9-ти битовых числах = ПСАНВ± mod F4, т.е. в диапазоне [32768..+32768] |
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 | + 0.192 | + 1.196 | + 0. 1 | + 0. 3 | + 5. 76 | + 12. 0 | + 0.192 |
1 | + 0.128 | + 11. 0 | + 0. 2 | + 0. 9 | + 99. 0 | + 32. 0 | + 2. 0 |
2 | + 0.132 | -115. 66 | 0. 0 | + 0. 33 | + 36.174 | + 24. 64 | + 1.132 |
3 | 0. 0 | + 96.184 | 0. 0 | + 0.129 | - 67.122 | + 16.128 | + 1. 8 |
4 | 0. 0 | -127.198 | 0. 0 | + 2. 1 | - 8.198 | 0. 0 | 0. 0 |
5 | 0. 0 | - 7.131 | 0. 0 | + 8. 1 | - 23. 71 | 0. 0 | 0. 0 |
6 | 0. 0 | +124.185 | 0. 0 | + 32. 1 | -114.224 | 0. 0 | 0. 0 |
7 | 0. 0 | - 63. 89 | 0. 0 | -128. 1 | - 31.173 | 0. 0 | 0. 0 |
8 | 0. 0 | + 0.196 | 0. 0 | - 0. 2 | - 0.197 | 0. 0 | 0. 0 |
9 | 0. 0 | + 7. 0 | 0. 0 | - 0. 8 | - 49. 1 | 0. 0 | 0. 0 |
10 | 0. 0 | +124.192 | 0. 0 | - 0. 32 | - 27. 50 | 0. 0 | 0. 0 |
11 | 0. 0 | + 32.184 | 0. 0 | - 0.128 | - 59. 57 | 0. 0 | 0. 0 |
12 | 0. 0 | -127.197 | 0. 0 | - 2. 0 | + 7. 61 | 0. 0 | 0. 0 |
13 | 0. 0 | - 7.127 | 0. 0 | - 8. 0 | - 23.187 | 0. 0 | 0. 0 |
14 | 0. 0 | +124.201 | 0. 0 | - 32. 0 | +108. 98 | 0. 0 | 0. 0 |
15 | 0. 0 | - 63. 25 | 0. 0 | -128. 0 | - 94.165 | 0. 0 | 0. 0 |