期刊名称：International Journal of Signal Processing, Image Processing and Pattern Recognition
印刷版ISSN：2005-4254
出版年度：2016
卷号：9
期号：10
页码：315-326
出版社：SERSC
摘要：The periodic estimation method of the PN sequence in DS Signal is researched. It is hard for traditional methods to estimate PN period of DS/SS accurately in the condition of low Signal-to-noise ratio. Onthe basis of thetraditional spectrum reprocessing and the cepstrum method,a PN period estimation method which has integrated serial average with spectrum reprocessing and the cepstrum are put forward to solve this problem and meet the requirements of lower Signal-to-noise ratio. The simulation results show that, when the period of PN sequence is estimated accurately, the cepstrum method has better estimating performance than the spectrum reprocessing method,and the spectral estimation method has lower Signal-to-noise ratio tolerance after improvements.
关键词：DS/SS;Periodic estimat;ion of the PN sequence;Serial average method;Spectrum reprocessing;Cepstrum
