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).
| Original language | English |
|---|---|
| Pages (from-to) | 1-16 |
| Number of pages | 16 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5427 |
| DOIs | |
| State | Published - 2004 |
| Event | Algorithms for Synthetic Aperture Radar Imagery XI - Orlando, FL, United States Duration: Apr 12 2004 → Apr 15 2004 |
Keywords
- RFI
- SAR
- Ultra wideband radar
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