A fast multilevel domain decomposition algorithm for radar imaging

Author

Boag, Amir

Author_Institution

Dept. of Electr. Eng., Tel Aviv Univ., Israel

Volume

49

Issue

4

fYear

2001

fDate

4/1/2001 12:00:00 AM

Firstpage

666

Lastpage

671

Abstract

A novel algorithm for radar imaging is presented. The method comprises two steps. First, a decomposition of the radar data domain into subdomains and computation of pertinent low resolution images. Second, interpolation, phase correction and aggregation of the low resolution images into the final high resolution one. A multilevel algorithm is formulated via a recursive application of the domain decomposition and image aggregation steps. The computational cost of the proposed algorithm is comparable to that of the fast Fourier transform (FFT) based techniques while it appears to be considerably more flexible than the latter

Keywords

image resolution; interpolation; radar imaging; radar resolution; synthetic aperture radar; FFT; computational cost; domain decomposition; fast Fourier transform; fast multilevel domain decomposition algorithm; high resolution images; image aggregation; interpolation; inverse synthetic aperture radar; low resolution images; multilevel algorithm; near-field ISAR imaging; phase correction; radar data domain; radar imaging; recursive application; subdomains; Computational complexity; Computational efficiency; Fast Fourier transforms; Fourier transforms; Frequency; Image resolution; Interpolation; Radar imaging; Radar tracking; Synthetic aperture radar;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.923329

Filename

923329