卷积码的译码方法分析

Analysis on Decoding Methods of Convolutional Codes

为了在实际中更好地利用卷积码的优异性能,文章从应用角度出发,对卷积码的译码方法进行了分析,给出了在不同的情况下,如何利用各种译码方法,得到理论性能和实际应用的最佳结合。同时对维特比译码算法中量度值的计算提出了一种改进算法,该改进算法有效地提高了卷积码的译码速度。

In order to practically utilize the excellent performance of convolutional codes,several decoding methods of convolutional codes are analyzed in the paper from the application angle,and the ways are presented to utilize different kinds of decoding means in different conditions to obtain the best performance At the same time,the authors put forward a kind of improved algorithm for the metric calculation of Viterbi decoding to achieve effective improvement in the decoding speed of convolutonal codes.