A location method for airborne bistatic SAR based on neighborhood recursion

Author

Xuqi Zhong ; Junjie Wu ; Zhongyu Li ; Zhichao Sun ; Yulin Huang ; Jianyu Yang ; Haiguang Yang

Author_Institution

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

fYear

2015

fDate

10-15 May 2015

Firstpage

1193

Lastpage

1197

Abstract

Target location is very important for Synthetic Aperture Radar (SAR) real applications. In this paper, a method based on neighborhood recursion has been developed to determine the target location in a bistatic SAR (BSAR) image. Firstly, the estimates of the Doppler Centroid and bistatic range sum (BRS) of the reference target are produced by utilizing the characteristics of BSAR data collection geometry. Then the location of the reference target is obtained. After that, the locations of all targets in a BSAR image can be recursively calculated by using the nearby pixels´ location relationship. This method is more efficient compared with the traditional methods in which the targets in the whole image are calculated by repeating the same steps as for the reference target. The simulation results validate the efficacy and efficiency of this BSAR location method.

Keywords

Doppler radar; airborne radar; radar imaging; radar tracking; recursive estimation; synthetic aperture radar; BSAR data collection geometry; Doppler Centroid; airborne bistatic SAR image; bistatic range sum; nearby pixel location relationship; neighborhood recursion; recursive estimation; synthetic aperture radar; target location determination method; Azimuth; Doppler effect; Estimation; Mathematical model; Receivers; Synthetic aperture radar; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (RadarCon), 2015 IEEE

Conference_Location

Arlington, VA

Print_ISBN

978-1-4799-8231-8

Type

conf

DOI

10.1109/RADAR.2015.7131175

Filename

7131175