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Capon- and APES-Based SAR Processing: Performance and Practical Considerations

López-Dekker, Paco and Mallorqui, Jordi J. (2010) Capon- and APES-Based SAR Processing: Performance and Practical Considerations. IEEE Transactions on Geoscience and Remote Sensing, 48 (5), pp. 2388-2402. DOI: 10.1109/TGRS.2009.2038902.

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Abstract

This paper discusses the use of Capon's minimum-variance method (MVM) and Amplitude and Phase EStimation (APES) spectral-estimation algorithms to synthetic aperture radar range�azimuth focusing. The rationale of the algorithms is discussed. An implementation of a Capon or APES processing chain is explained, and processing parameters such as chip-image size, resampling factor, and diagonal loading are discussed. For multichannel cases, a joint-processing approach is presented. A set of Monte Carlo simulations are described and used to benchmark Capon- and APES-based processing against conventional matched-filter-based approaches. Both methods improve the resolution and reduce sidelobes. APES yields generally better estimates of amplitude and phase than Capon but with worse resolution. Results with RADARSAT-2 quad-polarization data over Barcelona are used to qualitatively study the real-life performance of these algorithms.

Document Type:Article
Additional Information:�©2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Title:Capon- and APES-Based SAR Processing: Performance and Practical Considerations
Authors:
AuthorsInstitution or Email of Authors
López-Dekker, PacoUNSPECIFIED
Mallorqui, Jordi J.Universitat Politècnica de Catalunya (UPC)
Date:1 May 2010
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:48
DOI:10.1109/TGRS.2009.2038902
Page Range:pp. 2388-2402
Status:Published
Keywords:2-D spectral analysis , Adaptive processing , synthetic aperture radar
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben SAR-Expert-Support-Lab (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Paco Lopez Dekker
Deposited On:30 Apr 2010 15:09
Last Modified:12 Dec 2013 20:56

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