低信噪比直扩信号伪码周期检测的谱方法

A New Method of Spectra for Periodic Detection and Estimation of the PN Sequence in the Lower SNR DS/SS Signals

针对低信噪比直扩信号 (DS/ SS信号 )的伪码 (PN码 )周期检测的难题 ,本文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 。

In this paper,we propose a kind of new method which based on the reprocessing of the power spectrum of the DS/SS signals,it can solve the difficult problem of periodic detection and estimation of the PN sequence in the DS/SS signals.The results of computer simulation show that these methods can work well on the lower S/N ratio input signals.