Title :
Fast estimation method and performance analysis of frequency modulation rate via RAT
Author :
Li, Wenchen ; Dan, Mei ; Wang, Xuesong ; Li, Dun ; Wang, Guoyu
Author_Institution :
Nat. Univ. of Defense Technol., Changsha
Abstract :
Based on RAT model method, the fast algorithm of parameter estimation of discrete digital signal is studied in this paper. The model of multi-component LFM signal and the parameter estimation of RAT are presented. The fast algorithm of RAT model method of the discrete digital signal is offered, and residual expansion coefficient(REC) is proposed to testify the performance of parameter estimation, and computation cost is analyzed. Simulation results have validated the algorithm of RAT model method has reached the Cramer-Rao bound on both high and low SNR, and meanwhile the validity of the performance analysis of LFM parameter estimation based on REC method is testified. The method presents good application foreground to analyze multi-component LFM signal.
Keywords :
Radon transforms; frequency modulation; parameter estimation; signal processing; Cramer-Rao bound; Radon-ambiguity transform; discrete digital signal; fast estimation method; frequency modulation; parameter estimation; performance analysis; residual expansion coefficient; Algorithm design and analysis; Analytical models; Computational efficiency; Computational modeling; Frequency estimation; Frequency modulation; Parameter estimation; Performance analysis; Signal analysis; Testing; CRB(Cramer-Rao bound); Radon-ambiguity transform (RAT); multi-component LFM signal; residual expansion coefficient(REC);
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4607984
