Forward looking SAR imaging algorithm via CS

Author

Jian, Wang ; Zhu-lin, Zong

Author_Institution

Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

2

fYear

2011

fDate

24-27 Oct. 2011

Firstpage

1562

Lastpage

1565

Abstract

Forward-looking SAR is a system that is imaging for the frontal targets of the flight path. The forward looking SAR designed by DLR employs linear antenna array. The imaging resolution is limited by the short synthetic aperture which results from the short antenna. This paper presents a F-SAR imaging algorithm based on compressive sensing, which achieves higher imaging resolution in the same case with the system of DLR. This algorithm constructs the filter functions in the time domain which are independent of the target number and Doppler frequency. The effectiveness of the scheme is revealed through simulation results.

Keywords

compressed sensing; filters; linear antenna arrays; radar antennas; radar imaging; synthetic aperture radar; DLR; Doppler frequency; F-SAR imaging algorithm; compressive sensing; filter functions; flight path; forward looking SAR imaging algorithm; frontal target; imaging resolution; linear antenna array; short antenna; short synthetic aperture; target number; Azimuth; Image reconstruction; Image resolution; Imaging; Radar imaging; Receiving antennas; Compressive Sensing (CS); Forward looking SAR(F-SAR); OMP;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar (Radar), 2011 IEEE CIE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-8444-7

Type

conf

DOI

10.1109/CIE-Radar.2011.6159861

Filename

6159861