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Method for Detecting and Estimating the Parameters of LFM Spread Spectrum Signals Based on Radon-Wigner Transform

ZHANG Hai-ying,SUN Jie,YUAN Chao-wei(1.Institute of Telecommunication and Network Integrated Technology of BUPT,Beijing 100876,China;2.The 54th Research Institute of CETC,Shijiazhuang Hebei 050081,China)  
A method for detecting and estimating the parameters of chirp spread spectrum signals based on Radon-Wigner transform is proposed.According to the characteristics of this kind of signals,the baud rate of the signals can be accurately estimated by cepstrum while the carrier and chirp rate can be computed by Radon-Wigner transform.The theoretical analysis and the simulation results show that this method can effectively suppress the noise of LFM signals.
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