A Joint Parameter Estimation and Modulation Classification Improved Method based on Cyclostationary for DS Spread-Spectrum Signal

摘要：

Carrier frequency offset and symbol timing method based on second order cyclostationary for linearly modulation signals have been recently developed, in this paper first we revisit and improve this class method for direct-sequence spread-spectrum (DS/SS) signal, then we propose a new initial phase estimation and modulation classification method by exploiting DS/SS signals second order cyclsatationary statistics. Different from existing method, our estimations of frequency offset and symbol timing dont rely on each other so which can avoid propagation error; also proposed new method can correctly estimate initial phase and classify different order phase shift keying (PSK) modulation signals in DS/SS system. Simulations are provided to verify the results.

关键词： parameter estimation modulation classification second order cyclostationarity DS/SS synchronization

作者: Hongbo Yuan Zhao Jin

作者单位: First Aeronautical College of the Air Force Xinyang, China College of Information Engineering,Zhengzhou University Zhengzhou, China

会议类型: 国际会议

会议名称: 2011 International Conference on Communication and Electronics Information(ICCEI 2011)(2011年通信和电子信息国际会议)

会议地点: 海口

会议语种:英文

页码: 360-364

在线出版日期: 2011-02-22（万方平台首次上网日期，不代表论文的发表时间）