基于NRZI编码的数字通信系统仿真研究

Digital communication system simulation research about NRZI encoded

本文根据NRZI编码序列的构造规则,运用MATLAB语言进行了编程,并且通过了仿真,其结果符合实际理论,同时仿真了可用于实际通信系统的NRZI编码信号,给出了相应的2PSK和GMSK通信系统模型,在此基础上分析了NRZI编码在这两种调制情况下的误码率,及不同码率情况下整个系统的仿真,仿真结果符合通信理论,具有一定的实际意义。

This article according to the NRZI code sequence the rule, it has carried on the programming using the MATLAB language, and passed the simulation, its result conforms to the actual theory, meanwhile, we simulation NRZI coded signal that it almost can use in actual communications system, has given corresponding 2PSK and the GMSK communications system model, and we analyze error rate of the NRZI code and the system simulation in the different code rate situation, the simulation result conforms to the correspondence theory, so it has suitable significance.