接收机本振的失步对误码率的影响

The influence of receiver's oscillator unsynchron upon error probability

文章主要讨论数字接收机本振失步对误码率的影响。从接收机的模型出发，导出信号的概率密度分布函数，并据此给出了误码率概率估计的计算方法和本振失步的计算结果。文章仅仅从数值上证明了本振失步引起误码率上升这一结论。

This article discusses the influence of data receiver's oscillator unsynchron upon the received signal's error probability. By receiver's model,signal's probability density function is recognized. The method of calculating received signal's error probability is presented. The calculation result shows that received signal's error probability is increased when receiver's oscillator is in unsynchron.