ISAR imaging with array antenna receiver using AUTOCLEAN algorithm

Author

Dombrowski, Hugues ; Grenier, Dominic ; Roy, Sébastien

Author_Institution

Dept. of Electr. Eng., Univ. Laval, Ste. Foy, Que., Canada

Volume

1

fYear

2004

Firstpage

233

Abstract

This paper focuses on the use of an algorithm based on the CLEAN technique to extract moving targets with ISAR processing. This algorithm, called AUTOCLEAN, was improved, to stop the iterative process, by adding a criterion. It is used to estimate the range migration of a target such as an airplane. Then, this estimate is applied to the raw data to compensate for the displacement. Subsequently, 2D FFT is applied to the compensated data to form an image. We transposed AUTOCLEAN at the output of an array antenna receiver with coherent processing. Criteria were defined to efficiently compare the images produced by the tests. Finally, typical results are presented.

Keywords

array signal processing; fast Fourier transforms; feature extraction; motion compensation; motion estimation; radar imaging; synthetic aperture radar; 2D FFT; AUTOCLEAN algorithm; ISAR imaging; airplane range migration estimation; array antenna receiver; coherent processing; displacement compensation; feature extraction; motion compensation; motion extraction; moving target extraction; Airplanes; Antenna arrays; Antenna radiation patterns; Chirp; Data mining; Iterative algorithms; Motion estimation; Radar scattering; Receiving antennas; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2004. Canadian Conference on

ISSN

0840-7789

Print_ISBN

0-7803-8253-6

Type

conf

DOI

10.1109/CCECE.2004.1344999

Filename

1344999