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Таблица F3.A-1.3 Свертка 2-х векторов (r)X[t] и (r)H[t] длины T=16 GF( 1 + 223 ) = GF( 1 + 28 ) = GF( F3 ) в (A-1)-арифметике, T–1 = 1/T = 241 Результаты в A-арифметике в 9-ти битовых числах = ПСНВ+ mod F3, т.е. в диапазоне [ 0..+256] |
| 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 | 2 | 18 | 1 | 3 | 54 | 32 | 2 |
| 1 | 15 | 36 | 2 | 5 | 180 | 47 | 19 |
| 2 | 1 | 78 | 0 | 9 | 188 | 239 | 31 |
| 3 | 0 | 186 | 0 | 17 | 78 | 32 | 2 |
| 4 | 0 | 241 | 0 | 33 | 243 | 0 | 0 |
| 5 | 0 | 221 | 0 | 65 | 230 | 0 | 0 |
| 6 | 0 | 175 | 0 | 129 | 216 | 0 | 0 |
| 7 | 0 | 59 | 0 | 0 | 0 | 0 | 0 |
| 8 | 0 | 245 | 0 | 256 | 12 | 0 | 0 |
| 9 | 0 | 233 | 0 | 254 | 72 | 0 | 0 |
| 10 | 0 | 215 | 0 | 250 | 37 | 0 | 0 |
| 11 | 0 | 203 | 0 | 242 | 39 | 0 | 0 |
| 12 | 0 | 18 | 0 | 226 | 213 | 0 | 0 |
| 13 | 0 | 32 | 0 | 194 | 40 | 0 | 0 |
| 14 | 0 | 54 | 0 | 130 | 81 | 0 | 0 |
| 15 | 0 | 74 | 0 | 2 | 148 | 0 | 0 |