Title :
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
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;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2007. ICASSP 2007. IEEE International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0727-3
DOI :
10.1109/ICASSP.2007.366403
