Applying fractional Fourier transform to radar imaging of moving targets

Author

Liu, Hao ; Zhu, Minhui

Author_Institution

Inst. of Electron., Chinese Acad. of Sci., Beijing, China

Volume

6

fYear

2003

fDate

21-25 July 2003

Firstpage

4071

Abstract

A fractional Fourier transform based method for radar imaging of moving targets is presented in this paper. Compared with the traditional joint time-frequency approaches, it can achieve a better result of clutter cancellation by using optimal filtering in the fractional Fourier domain due to linear and rotational properties of this transform. By using this method, we can carry out moving targets detection, LFM signal parameters estimation as well as clutter cancellation at the same time under the time-frequency analysis. The effectiveness of this method has been tested through simulation.

Keywords

Fourier transforms; geophysical signal processing; geophysical techniques; radar clutter; radar imaging; synthetic aperture radar; time-frequency analysis; LFM signal parameters estimation; clutter cancellation; fractional Fourier transform; linear properties; moving targets; optimal filtering; radar imaging; rotational properties; time-frequency analysis; Clutter; Filtering; Fourier transforms; Nonlinear filters; Object detection; Parameter estimation; Radar imaging; Signal detection; Testing; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International

Print_ISBN

0-7803-7929-2

Type

conf

DOI

10.1109/IGARSS.2003.1295365

Filename

1295365