Adaptive coherent suppression of multiple wide-bandwidth RFI sources in SAR

Lam H. Nguyen; Tuan Ton; David Wong; Mehrdad Soumekh

doi:10.1117/12.542466

2 September 2004 Adaptive coherent suppression of multiple wide-bandwidth RFI sources in SAR

Lam H. Nguyen, Tuan Ton, David Wong, Mehrdad Soumekh

Author Affiliations +

Proceedings Volume 5427, Algorithms for Synthetic Aperture Radar Imagery XI; (2004) https://doi.org/10.1117/12.542466
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

This paper is concerned with suppressing multiple wide-bandwidth radio frequency interference (RFI) sources in SAR systems. A coherent processing of passive radar (sniff) data is presented to diminish the effects of wide-bandwidth as well as narrow-bandwidth RFI sources in the active radar data that are collected by a SAR system. The approach is based on a two-dimensional adaptive filtering of the active SAR data using the passive sniff data as the reference signal. A similar mathematical (signal) model and processing is also utilized to suppress self-induced resonance (SIR) signals that are generated by the interaction of the radar-carrying platform and the transmitted radar signal. Results are shown using the Army Research Laboratory (ARL) low-frequency, ultra-wideband (UWB) imaging radar (Boom-SAR).

Citation Download Citation

Lam H. Nguyen, Tuan Ton, David Wong, and Mehrdad Soumekh "Adaptive coherent suppression of multiple wide-bandwidth RFI sources in SAR", Proc. SPIE 5427, Algorithms for Synthetic Aperture Radar Imagery XI, (2 September 2004); https://doi.org/10.1117/12.542466

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