Spectral estimation of gapped data and SAR imaging with angular diversity

Erik G. Larsson; Jian Li; Peter Stoica; Guoqing Liu; Robert L. Williams

doi:10.1117/12.438239

27 August 2001 Spectral estimation of gapped data and SAR imaging with angular diversity

Erik G. Larsson, Jian Li, Peter Stoica, Guoqing Liu, Robert L. Williams

Proceedings Volume 4382, Algorithms for Synthetic Aperture Radar Imagery VIII; (2001) https://doi.org/10.1117/12.438239
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

The Amplitude and Phase EStimation (APES) approach to amplitude spectrum estimation has been receiving considerably attention recently. We develop an extension of APES for the spectral estimation of gapped (incomplete) data and apply it to synthetic aperture radar (SAR) imaging with angular diversity. It has recently been shown that APES minimizes a certain least-squares criterion with respect to the estimate of the spectrum. Our new algorithm is called gapped-data APES and is based on minimizing this criterion with respect to the missing data as well. Numerical results are presented to demonstrate the effectiveness of the proposed algorithm and its applicability to SAR imaging with angular diversity.

Citation Download Citation

Erik G. Larsson, Jian Li, Peter Stoica, Guoqing Liu, and Robert L. Williams "Spectral estimation of gapped data and SAR imaging with angular diversity", Proc. SPIE 4382, Algorithms for Synthetic Aperture Radar Imagery VIII, (27 August 2001); https://doi.org/10.1117/12.438239

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