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Таблица F4.A-1.1. 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 = 61441 Результаты в A-арифметике в 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 | 192 | 452 | 1 | 3 | 1356 | 3072 | 192 |
| 1 | 128 | 2816 | 2 | 9 | 25344 | 8192 | 512 |
| 2 | 132 | 36032 | 0 | 33 | 9390 | 6208 | 388 |
| 3 | 0 | 24760 | 0 | 129 | 48264 | 4224 | 264 |
| 4 | 0 | 32828 | 0 | 513 | 63292 | 0 | 0 |
| 5 | 0 | 63615 | 0 | 2049 | 59579 | 0 | 0 |
| 6 | 0 | 31929 | 0 | 8193 | 36130 | 0 | 0 |
| 7 | 0 | 49321 | 0 | 32769 | 57429 | 0 | 0 |
| 8 | 0 | 196 | 0 | 2^16 | 65341 | 0 | 0 |
| 9 | 0 | 1792 | 0 | 65530 | 52993 | 0 | 0 |
| 10 | 0 | 31936 | 0 | 65506 | 58576 | 0 | 0 |
| 11 | 0 | 8376 | 0 | 65410 | 50377 | 0 | 0 |
| 12 | 0 | 32829 | 0 | 65026 | 1853 | 0 | 0 |
| 13 | 0 | 63619 | 0 | 63490 | 59463 | 0 | 0 |
| 14 | 0 | 31945 | 0 | 57346 | 27746 | 0 | 0 |
| 15 | 0 | 49385 | 0 | 32770 | 41309 | 0 | 0 |