Analysis of SAR moving grid processing for focusing and detection of ground moving targets

Daniel E. Hack; Michael A. Saville

doi:10.1117/12.884277

4 May 2011 Analysis of SAR moving grid processing for focusing and detection of ground moving targets

Daniel E. Hack, Michael A. Saville

Proceedings Volume 8051, Algorithms for Synthetic Aperture Radar Imagery XVIII; 80510S (2011) https://doi.org/10.1117/12.884277
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

This paper investigates the performance of single-channel SAR-GMTI systems in the focusing and detection of translating ground targets moving in the presence of a clutter background. Specifically, focusing and detection performance is investigated by applying the Moving Grid Processing (MGP) focusing technique to a scene containing an accelerating target moving in the presence of both uniform and correlated K-distributed clutter backgrounds. The increase in detection sensitivity resulting from the focusing operation is found to result from two separable effects, target focusing and clutter defocusing. While the detection sensitivity gain due to target focusing is common for both clutter types, the gain due to clutter defocusing is found to be significantly greater for textured clutter than for uniform clutter, by approximately 5 to 6 dB in the simulated scenario under consideration. This paper concludes with a discussion of the phenomenological causes for this difference and implications of this finding for single channel SAR-GMTI systems operating in heterogeneous clutter environments.

Citation Download Citation

Daniel E. Hack and Michael A. Saville "Analysis of SAR moving grid processing for focusing and detection of ground moving targets", Proc. SPIE 8051, Algorithms for Synthetic Aperture Radar Imagery XVIII, 80510S (4 May 2011); https://doi.org/10.1117/12.884277

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