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https://hdl.handle.net/2440/60309
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Type: | Journal article |
Title: | Bistatic SAR experiment with the Ingara imaging radar |
Author: | Goh, A. Preiss, M. Stacy, N. Gray, D. |
Citation: | IET Radar, Sonar and Navigation , 2010; 4(3):426-437 |
Publisher: | IEE-Inst Elec Eng |
Issue Date: | 2010 |
ISSN: | 1751-8784 1751-8792 |
Statement of Responsibility: | Goh A.S., Preiss M., Stacy N.J.S. and Gray, D.A. |
Abstract: | Synthetic aperture radar (SAR) operation in a bistatic configuration not only offers various advantages over its now well-established monostatic counterpart but also poses various challenges. As part of a research programme into the potential benefits and challenges of bistatic SAR, the Ingara fully polarimetric X-band airborne imaging radar system, developed and operated by the Australian Defence Science and Technology Organisation, was upgraded to conduct experimental SAR data collections in a bistatic geometry. Initial trials of the new bistatic SAR system were conducted between December 2007 and April 2008: these involved operation of the existing airborne radar in a fine-resolution (600 MHz bandwidth) circular spotlight-SAR mode, in conjunction with a newly developed fully polarimetric stationary ground-based bistatic receiver. These experimental trials produced a set of fully polarimetric simultaneously collected monostatic and bistatic SAR data, collected over a wide range of bistatic angles. Results from a preliminary analysis of the data have been encouraging: focussed fine-resolution imagery has been obtained, indicating the successful maintenance of synchronisation and phase stability between the independent airborne and ground-based systems. Furthermore, interferometric coherence has been demonstrated between single-pass simultaneously collected monostatic and bistatic images from the airborne and ground-based receivers, and between repeat-pass bistatic images from the ground-based receiver collected some 100 min apart. This study gives an overview of the Ingara bistatic SAR system, discusses the experiments and data processing and presents initial experimental results. |
Rights: | © Copyright 2010 IEEE – All Rights Reserved |
DOI: | 10.1049/iet-rsn.2009.0103 |
Published version: | http://dx.doi.org/10.1049/iet-rsn.2009.0103 |
Appears in Collections: | Aurora harvest 5 Electrical and Electronic Engineering publications |
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