DOA estimation of multi-component LFM signals based on the FRFT

Author

Luo, Xiaoxiang ; Qu, Haitao ; Yu, Junsheng ; Liu, Shaohua

Author_Institution

Beijing Univ. of Posts & Telecommun., Beijing

fYear

2008

Firstpage

140

Lastpage

144

Abstract

A novel algorithm for the direction of arrival (DOA) estimation based on the fractional Fourier transform (FRFT) is proposed. Multi-component LFM signals are filtered and demodulated into a number of stationary single frequency signals. Then the direction estimation of LFM signals can be achieved by combining with the traditional MUSIC method in the fractional Fourier (FRF) domain. The statistical analysis is also performed which perfects the method theoretically, simulation results are provided to show the validity of our method.

Keywords

Fourier transforms; demodulation; direction-of-arrival estimation; frequency modulation; statistical analysis; DOA estimation; FRFT; direction of arrival estimation; fractional Fourier transform; linear frequency modulated signals; multicomponent LFM signal demodulation; multicomponent LFM signal filtering; signal direction estimation; statistical analysis; Additive white noise; Direction of arrival estimation; Fourier transforms; Frequency estimation; Multiple signal classification; Radar signal processing; Signal processing; Signal processing algorithms; Statistical analysis; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2008. ICSP 2008. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2178-7

Electronic_ISBN

978-1-4244-2179-4

Type

conf

DOI

10.1109/ICOSP.2008.4697089

Filename

4697089