A new approach of Wigner-Ville distribution in moving targets parameters estimation of SAR

Author

Zhiqin, Zhao ; Weiqiang, Zheng ; Shengli, Dai ; Shunji, Huang

Author_Institution

Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

1996

fDate

8-10 Oct 1996

Firstpage

470

Lastpage

474

Abstract

Moving targets imaging is a very difficult problem in synthetic aperture radar (SAR). In this paper, the authors use the Wigner-Ville distribution (WVD) to estimate the parameters of moving targets. But because of the bilinearity of the WVD, cross-terms occur if the WVD is used in multitarget processing. In order to decrease the influence of cross terms and not increase computation loads, we preprocess the information of moving targets before using the WVD. Simulation results show the availability of this method

Keywords

Wigner distribution; parameter estimation; radar imaging; radar signal processing; radar theory; synthetic aperture radar; time-frequency analysis; Wigner-Ville distribution; bilinearity; moving targets imaging; multitarget processing; parameter estimation; synthetic aperture radar; Availability; Azimuth; Computational modeling; Mathematical model; Mathematics; Object detection; Parameter estimation; Synthetic aperture radar; Time frequency analysis; Weather forecasting;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 1996. Proceedings., CIE International Conference of

Conference_Location

Beijing

Print_ISBN

0-7803-2914-7

Type

conf

DOI

10.1109/ICR.1996.574500

Filename

574500