Systematic punctured convolutional encoding method

摘要

A rate-l/n or rate-k/n convolutional encoding method, in a digital communications system having a non-systematic convolutional encoder, includes the steps of: obtaining first to n-th block code words by multiplying first to n convolutional code generating polynomials by an information polynomial upon input of an information word; converting one of the first to n-th block code words to a systematic code word and obtaining a new information word corresponding to the systematic code word; and generating a convolutional code by encoding the new information code in the non-systematic convolutional encoder.