直扩信号伪码周期的谱检测

A new spectral method of periodic detection of PC sequence in lower SNR DS/SS signals

针对低信噪比直扩信号 ( DS/SS信号 )的伪码 ( PC码 )周期截获的难题 ,提出了一类基于信号功率谱二次处理的新方法 ,理论分析和计算机模拟表明 。

A kind of new method which is based on the reprocessing of the power spectrum of DS/SS signals is propose. It can solve the difficult problem of periodic detection and estimation of the PC sequence in the DS/SS signals. The results of computer simulation show that this method can work well for the lower S/N ratio input signals.