Improved ENLCS Imaging Algorithm for Air-borne Forward-Looking SAR

Author

Lianyin, Gong ; Zhulin, Zong ; Jianshu, Cao

Author_Institution

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

Volume

2

fYear

2011

fDate

28-30 Oct. 2011

Firstpage

129

Lastpage

132

Abstract

Based on problem which side-looking SAR can´t image in flight direction with azimuth resolution, an linearity array antenna forward-looking SAR system is studied. According to the spatial geometry and the model of echo signal, extended nonlinear chirp scaling algorithm is proposed for forward-looking SAR. The phase compensation factors and realized steps of algorithm are given. The image is achieved by using the ENLCS algorithm proposed in this paper. The imaging effect is analyzed, and the Simulation results demonstrate the validity of the algorithm.

Keywords

airborne radar; linear antenna arrays; radar antennas; radar imaging; synthetic aperture radar; ENLCS imaging Algorithm; Forward-looking SAR; azimuth resolution; echo signal; flight direction; linearity array antenna forward-looking SAR system; nonlinear chirp scaling algorithm; phase compensation factor; side-looking SAR; Antenna arrays; Arrays; Azimuth; Chirp; Imaging; Radar imaging; Receiving antennas; ENLCS algorithm; Forward-looking; SAR; linearity array antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence and Design (ISCID), 2011 Fourth International Symposium on

Conference_Location

Hangzhou

Print_ISBN

978-1-4577-1085-8

Type

conf

DOI

10.1109/ISCID.2011.134

Filename

6079754