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Contrast-based Phase Calibration for Remote Sensing Systems with Digital Beamforming Antennas

Farquharson, Gordon and Lopez-Dekker, Paco and Frasier, Stephen J. (2013) Contrast-based Phase Calibration for Remote Sensing Systems with Digital Beamforming Antennas. IEEE Transactions on Geoscience and Remote Sensing, 51 (3), pp. 1744-1754. IEEE. DOI: 10.1109/TGRS.2012.2205695. ISSN 0196-2892.

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Abstract

A contrast-based phase calibration algorithm for digital-beamforming remote sensing radars using three contrast metrics is presented. The performance of the algorithm is studied using a combination of simulated and real radar data under various conditions, and is compared with a clutter-based calibration algorithm. An analytical proof showing that maximizing the expected value of the 4-norm metric is equivalent to phase calibrating the image, is provided. We find that the clutter calibration algorithm performs best for statistically homogeneous scenes, but that the contrast calibration algorithms perform better with scenes with larger contrast ratios.

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:Contrast-based Phase Calibration for Remote Sensing Systems with Digital Beamforming Antennas
Authors:
AuthorsInstitution or Email of Authors
Farquharson, GordonUniversity of Washingon
Lopez-Dekker, PacoUNSPECIFIED
Frasier, Stephen J.University of Massachusetts
Date:1 March 2013
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:51
DOI:10.1109/TGRS.2012.2205695
Page Range:pp. 1744-1754
Publisher:IEEE
ISSN:0196-2892
Status:Published
Keywords:Antenna arrays, calibration, digital-beamforming, phase estimation, radar, remote sensing.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben SAR-Expert-Support-Lab
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Paco Lopez Dekker
Deposited On:12 Dec 2011 12:15
Last Modified:10 Dec 2013 15:33

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