A threshold detection method of DSSS signal based on STFT

被引：0
|
作者：
Zhao, ZJ [1 ]
Sun, Z [1 ]
Mei, F [1 ]
机构：
[1] Hangzhou Dianzi Univ, Hangzhou 310018, Zhe Jiang, Peoples R China
来源：
IEEE 2005 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Proceedings, Vols 1 and 2 | 2005年
关键词：
direct sequence spread spectrum (DSSS)signal; spread spectrum communication; DSSS detection; detection without code; Short-Time Fourier Transform (STFT);
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Based on the periodicity of DSSS signal's Short-Time Fourier Transform (STFT) spectrum, a periodical variance threshold searching method of periodical pulse is presented. To the IS-95CDMA signal, when SNR is -13dB, its detection probability is above 89%. This method doesn't use any prior information such as signal's carrier frequency, spreading code and etc. It is easy to implement and to use in practice.
引用
收藏
页码：879 / 882
页数：4
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