Title :
Parameter Estimation and Analysis of LFM Signal Based on Cyclic-Correlation Transform in Multipath Case
Author :
Jianfeng, Shi ; Keren, Wang
Author_Institution :
Dept. Inf., Electron. Eng. Inst., Hefei
Abstract :
Discussed in this paper is the parameter estimation problem of complex LFM signals based on cyclic-correlation transform under multipath conditions. First, we analyzed the cyclic statistics of complex LFM signals and constructed the estimator combining signal separation technology for cycle frequency domain with autocorrelated cyclic correlation amplitude, then, we analyzed the performances of the estimator and deduced the expression of error variance of chirp-rate estimate, and finally we worked out the characteristics of the estimator through computer simulation. The result is in agreement with the analytic results
Keywords :
correlation methods; frequency modulation; parameter estimation; source separation; LFM signal analysis; autocorrelated cyclic correlation amplitude; cyclic-correlation transform; linear frequency modulation; multipath case; parameter estimation; signal separation; Amplitude estimation; Analysis of variance; Error analysis; Frequency domain analysis; Frequency estimation; Parameter estimation; Performance analysis; Signal analysis; Source separation; Statistical analysis;
Conference_Titel :
Information and Communication Technologies, 2006. ICTTA '06. 2nd
Conference_Location :
Damascus
Print_ISBN :
0-7803-9521-2
DOI :
10.1109/ICTTA.2006.1684685
