RS+卷积级联码抗脉冲干扰性能研究

Study on Pulse Interference Rejection Performance of Convolutional-RS Concatenated Code

介绍了一种典型的RS+卷积级联码的编码方式,讨论了编码的纠错能力,并结合该级联码的编/解码过程,推导出在此系统下脉冲干扰宽度与系统错码个数的关系,指出了对该系统进行脉冲干扰时的精确干扰宽度,包括干扰无效门限、干扰成功门限和一般干扰门限。仿真试表明文章得出的结论正确,当脉冲干扰宽度达到给定门限后,干扰结果与预期相符。

This paper introduces a kind of typical convolutional-RS concatenated code, and discussed the er- ror-correcting capability of the code. Through detailed analyzing the code/decode process, the preliminary conclusion of the relationship between the width and the effect of interference is given, including the interfer- ence invalid threshold, threshold of success and commonly used threshold. The conclusion is verified by simu- lation experiment, when the width of pulse interference reach the threshold given , the system works as we predicted.