Criticality is low breaking the symbol whose by do unequal error conservation passing the channel from

摘要

(57) Abstract The encoding system, of the non important symbol and the important symbol of the digital message which it should transmit to the receiver from the transmitter of digital system it makes error conservation both. Both error conservation of the non important symbol and the important symbol is done by encoding in, the both transmitters of the important symbol and the non important symbol of the message block which forms digital message. The unequal error conservation for the important symbol the respective code word of the encoding signal, by breaking non important symbols of a quantity which is chosen, is done. Regarding the receiver, whether or not erasure place and error of reception code word are correction possible vis-a-vis the respective reception code word, the correction decision regarding is done. Correction decision, the number of errors and the number of erasure places and minimum distance of the code is and, function. On the basis of this correction decision, reception code word is broken is restored, is coded. It is desirable, breaking restoration, in order to regard the breaking symbol erasure place lead/read SOLOMON, is done making use of the code whose barekanpu (Berlekamp) decoding is possible. Next, breaking restoration message, the sequence presumption Viterbi way is decoded by decoding.