A novel method for extraction of in-pulse feature of multi-component LFM signal

Author

Chen, Changxiao ; He, Minghao ; Jin, Hongbin ; Li, Haihong ; Shen, Zhengyi

Author_Institution

Air Force Radar Acad., Wuhan, China

fYear

2009

fDate

16-19 Aug. 2009

Abstract

Aiming on the problem of low precision and cross term in the conventional method of multi-component LFM signal detection and parameter estimation. A time-frequency associated analyzed method based on wavelet transform and time-frequency reassignment and Hough transform is propased. Overcome the interferences of cross term by wavelet transform, guarantee the accuracy by time-frequency reassignment, use the distribution of time-frequency after reassignment as the image, then achieves the interception of component and the estimate of parameter based on Hough transform. Simulation results show that this method is feasible.

Keywords

FM radar; Hough transforms; feature extraction; military radar; parameter estimation; radar imaging; signal detection; time-frequency analysis; wavelet transforms; Hough transform; battlefield environment; in-pulse feature extraction; multicomponent linear frequency modulation signal detection; parameter estimation; radar; time-frequency associated analyzed method; time-frequency reassignment; wavelet transform; Chirp modulation; Feature extraction; Force measurement; Instruments; Interference; Parameter estimation; Signal analysis; Time frequency analysis; Wavelet analysis; Wavelet transforms; Hough transform; multi-component LFM signal; time-frequency reassignment; wavelet transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3863-1

Electronic_ISBN

978-1-4244-3864-8

Type

conf

DOI

10.1109/ICEMI.2009.5274665

Filename

5274665