Таблица F5.A-1.6 Свертка 2-х векторов (r)X[t] и (r)H[t] длины T= 4 GF( 1 + 225 ) = GF( 1 + 232 ) = 4294967297 = GF( F5 ) в (A-1)-арифметике, T–1 = 1/T = 0'192. 0. 0. 0B = -1073741825 Результаты в (A-1)-арифметике в виде 33-битовых слов = ПСАНВ± mod F5, т.е. в диапазоне [231..+231] |
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' 0. 0. 0. 1 0' 0. 0. 0. 5 0' 0. 0. 0. 0 0' 0. 0. 0. 2 0' 0. 0. 0. 17 0' 0. 0. 0. 7 0' 0. 0. 0. 1 1 0' 0. 0. 0. 2 0' 0. 3. 0. 0 0' 0. 0. 0. 1 0' 0. 2. 0. 0 0' 0. 4.255.250 0' 0. 0. 0. 27 0' 0. 0. 0. 6 2 0' 0. 0. 0. 0 1' 0. 0. 0. 0 1' 0. 0. 0. 0 0'255.255.255.255 1' 0. 0. 0. 0 0' 0. 0. 0. 27 0' 0. 0. 0. 6 3 1' 0. 0. 0. 0 0'255.253. 0. 1 1' 0. 0. 0. 0 0'255.254. 0. 1 0'255.250.255.251 0' 0. 0. 0. 7 0' 0. 0. 0. 1 |