说明：  给出纠错码性能测试仿真的一般方法，重点研究其信道差错序列的产生，然后利用Matlab实现卷积码编码及其Viterbi译码的性能测试仿真。
(given error-correcting code simulation performance test methodology, the general focus on its channel sequence errors in the generation, then using Matlab convolutional coding and Viterbi decoding performance test simulation.)