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二.卷积码--有记忆的码有记忆编码电路 (2) m0:808片098小mm 是m的延时,根据时不变性质 m=m'(1)+m'(2) 0 c'=c0+c(2)=0 +0 0 010 0 0011 (000,101,000,001,000,)+(000,011,001,000,000,.. =(000,110,001,001,000,2)二. 卷积码-----有记忆的码-----有记忆编码电路 (2) (1) (2) ' ' 0 1 0 ...... 0 0 0 ...... 0 0 0 ...... 0 1 0 ...... 0 1 0 ...... 0 1 0 ...... m'   = m +m       +        =        = m= m  (1)+m  (2) (000,110,001,001,000,...,...) 000 101 000 001 000,...,... 000 011 001 000 000,...,... 0 0 1 1 0 ...... 0 1 0 0 0 ...... 0 1 0 0 0 ...... 0 1 1 0 0 ...... 0 1 0 0 0 ...... 0 0 0 0 0 ...... 0 1 0 1 0 ...... 0 0 0 0 0 ...... 0 1 0 0 0 ...... ' ' ' (1) (2) = = +           =           +           = + = ( , , , , )( , , , , ) c c c 是m的延时,根据时不变性质
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