New explanation of relative motion in ISAR and moving target imaging problems from a target-centric viewpoint using SAR fundamental angles

Tom Medl; James H. Hughen

doi:10.1117/12.555514

2 September 2004 New explanation of relative motion in ISAR and moving target imaging problems from a target-centric viewpoint using SAR fundamental angles

Tom Medl, James H. Hughen

Author Affiliations +

Proceedings Volume 5427, Algorithms for Synthetic Aperture Radar Imagery XI; (2004) https://doi.org/10.1117/12.555514
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

It is useful in applications of imaging moving vehicles to view the relative motion from a "target-centric" viewpoint. It was shown in a previous paper by the same authors that using "novel" definitions of the SAR fundamental angles and viewing the problem from a target-centric perspective allows one to determine how a moving target is projected into the range-doppler plane. This paper develops a clear and concise mathematical "connection" from the source of the motion estimation error to the projection of the target scattering centers into the range-doppler plane. It is already known that making accurate scatterer predictions is essential to the performance of a model-based ATR (MBATR) subsystem. Therefore, the ability to make better predictions of scatterer locations should naturally lead to improved MBATR performance against moving targets.

Citation Download Citation

Tom Medl and James H. Hughen "New explanation of relative motion in ISAR and moving target imaging problems from a target-centric viewpoint using SAR fundamental angles", Proc. SPIE 5427, Algorithms for Synthetic Aperture Radar Imagery XI, (2 September 2004); https://doi.org/10.1117/12.555514

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