Time-domain imaging of radar targets using algorithms for reconstruction from projections

Author

Chen, K.M.

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1227

Lastpage

1235

Abstract

A time domain bistatic inverse scattering identity based on the Radon transform and the space-time magnetic integral equation is derived for real-time use in short pulse radar systems. It is shown that using a sine-modulated exponential pulse (SILIEP) and algorithms for reconstruction from projections provides an edge-enhanced image. A simulation based on stepped frequency, multi-aspect measurements of aircraft models produces clear images with highly defined edges. Images using data from a restricted range of aspect angles are also demonstrated

Keywords

Radon transforms; aircraft; electromagnetic wave scattering; image enhancement; image reconstruction; integral equations; inverse problems; magnetic fields; modulation; radar applications; radar cross-sections; radar imaging; time-domain analysis; Radon transform; aircraft models; algorithms; aspect angles; edge enhanced image; image reconstruction; multiaspect measurements; projections; radar targets; real-time; short pulse radar systems; simulation; sine-modulated exponential pulse; space-time magnetic integral equation; stepped frequency; time domain bistatic inverse scattering identity; time-domain imaging; Image reconstruction; Integral equations; Inverse problems; Magnetic domains; Radar imaging; Radar scattering; Real time systems; Spaceborne radar; Time domain analysis; Transforms;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.611241

Filename

611241