Omega-K Imaging Algorithm for One-Stationary Bistatic SAR

Author

Junjie Wu ; Zhongyu Li ; Yulin Huang ; Jianyu Yang ; Qing Huo Liu

Author_Institution

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

Volume

50

Issue

1

fYear

2014

fDate

Jan-14

Firstpage

33

Lastpage

52

Abstract

In bistatic synthetic aperture radar (BSAR) with one-stationary station, azimuth variation is a major problem. In this paper, based on the two-dimensional (2D) spatial linearization of the accurate analytical point target reference spectrum, an Omega-K imaging algorithm to deal with this problem is proposed. Different from the traditional Omega-K algorithms for monostatic SAR and translational invariant BSAR, the approach uses a 2D Stolt frequency transformation. In addition, a compensation method for the phase error caused by the linearization and the related geometry registration are also discussed. Numerical simulations verify the effectiveness of the proposed method.

Keywords

compensation; geometry; numerical analysis; radar imaging; synthetic aperture radar; transforms; 2D Stolt frequency transformation; 2D spatial linearization; Omega-K imaging algorithm; analytical point target reference spectrum; azimuth variation; compensation method; monostatic SAR; numerical simulation; one-stationary bistatic SAR; related geometry registration; synthetic aperture radar; translational invariant BSAR; two-dimensional spatial linearization; Algorithm design and analysis; Azimuth; Bistatic radar; Frequency modulation; Frequency-domain analysis; Synthetic aperture radar;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/TAES.2013.120399

Filename

6809899