High-Resolution Imaging using Capon Beamformers for Urban Sensing Applications

Author

Ahmad, Farhan ; Amin, Moeness G.

Author_Institution

Radar Imaging Lab., Villanova Univ., PA, USA

Volume

2

fYear

2007

fDate

15-20 April 2007

Abstract

A wideband synthetic aperture radar system based on beamspace Capon beamforming is presented for urban sensing applications. Various effects of signal propagation through building materials are incorporated into the beamformer design. Proof of concept is provided using real data collected in a laboratory environment. Comparison between data-independent and scene-dependent beamformers is provided. The results show that the beamspace Capon beamformer outperforms the nonadaptive delay-and-sum beamformer.

Keywords

image resolution; radar imaging; radiowave propagation; synthetic aperture radar; beamspace Capon beamforming; building materials; data-independent beamformer; high-resolution imaging; nonadaptive delay-and-sum beamformer; scene-dependent beamformer; signal propagation; urban sensing applications; wideband synthetic aperture radar system; Apertures; Array signal processing; Covariance matrix; Delay; Frequency; High-resolution imaging; Interference constraints; Pixel; Radar imaging; Transceivers; Beamforming; Capon; High-Resolution; Through-the-wall;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on

Conference_Location

Honolulu, HI

ISSN

1520-6149

Print_ISBN

1-4244-0727-3

Type

conf

DOI

10.1109/ICASSP.2007.366403

Filename

4217576