卷积码和Viterbi译码的源程序，在Xilinx ISE环境下使用Verilog编写，有助于卷积码和Viterbi译码的学习-Convolutional codes and Viterbi decoding of the source, in the Xilinx ISE environment, use of Verilog prepared to help convolutional codes and Viterbi decoding of the study