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Таблица F4.A-1.3 Свертка 2-х векторов (r)X[t] и (r)H[t] длины T= 8 GF( 1 + 224 ) = GF( 1 + 216 ) = GF( F4 ) в (A-1)-арифметике, T–1 = 1/T = 224. 1 Результаты в A-арифметике в 9-ти битовых числах = ПСНВ+ mod F4, т.е. в диапазоне [ 0..+65536] |
| 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. 32 | 0. 64 | 0. 1 | 0. 3 | 0.192 | 1. 0 | 0. 32 |
| 1 | 0. 64 | 228. 33 | 0. 2 | 0. 33 | 104. 36 | 4. 0 | 0.128 |
| 2 | 255.225 | 64. 64 | 0. 0 | 2. 1 | 191.192 | 3. 0 | 0. 96 |
| 3 | 0. 0 | 32. 28 | 0. 0 | 32. 1 | 156. 25 | 254. 1 | 255.193 |
| 4 | 0. 0 | 255.193 | 0. 0 | 2^16 | 0. 64 | 0. 0 | 0. 0 |
| 5 | 0. 0 | 220. 33 | 0. 0 | 255.226 | 88. 28 | 0. 0 | 0. 0 |
| 6 | 0. 0 | 192. 65 | 0. 0 | 254. 2 | 63.193 | 0. 0 | 0. 0 |
| 7 | 0. 0 | 32. 36 | 0. 0 | 224. 2 | 164. 41 | 0. 0 | 0. 0 |