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. 2 | + 0. 18 | + 0. 1 | + 0. 3 | + 0. 54 | + 0. 32 | + 0. 2 |
1 | + 0. 15 | + 0. 78 | + 0. 2 | + 0. 9 | + 2.190 | + 1. 48 | + 0. 19 |
2 | + 0. 1 | + 1.242 | 0. 0 | + 0. 33 | + 64. 50 | + 1.240 | + 0. 31 |
3 | 0. 0 | + 19.194 | 0. 0 | + 0.129 | - 11. 73 | + 0. 32 | + 0. 2 |
4 | 0. 0 | + 15. 1 | 0. 0 | + 2. 1 | + 16.227 | 0. 0 | 0. 0 |
5 | 0. 0 | + 59.242 | 0. 0 | + 8. 1 | - 53.239 | 0. 0 | 0. 0 |
6 | 0. 0 | - 17. 0 | 0. 0 | + 32. 1 | + 17. 33 | 0. 0 | 0. 0 |
7 | 0. 0 | - 80. 3 | 0. 0 | -128. 1 | - 40. 2 | 0. 0 | 0. 0 |
8 | 0. 0 | - 0. 13 | 0. 0 | - 0. 2 | + 0. 12 | 0. 0 | 0. 0 |
9 | 0. 0 | - 0. 43 | 0. 0 | - 0. 8 | + 1. 38 | 0. 0 | 0. 0 |
10 | 0. 0 | + 0. 18 | 0. 0 | - 0. 32 | - 2. 47 | 0. 0 | 0. 0 |
11 | 0. 0 | + 12. 66 | 0. 0 | - 0.128 | - 20.185 | 0. 0 | 0. 0 |
12 | 0. 0 | - 15. 0 | 0. 0 | - 2. 0 | - 17. 30 | 0. 0 | 0. 0 |
13 | 0. 0 | - 60. 15 | 0. 0 | - 8. 0 | + 50. 18 | 0. 0 | 0. 0 |
14 | 0. 0 | + 15. 3 | 0. 0 | - 32. 0 | - 79. 30 | 0. 0 | 0. 0 |
15 | 0. 0 | + 48. 6 | 0. 0 | -128. 0 | + 72. 9 | 0. 0 | 0. 0 |