An estimate-and-subtract algorithm is presented for the real-time digital suppression of radio frequency interference (RFI) in ultrawideband (UWB) synthetic aperture radar (SAR) systems used for foliage- and ground-penetrating imaging. The algorithm separately processes fixed- and variable-frequency interferers. Excision of estimated targets greatly reduces bias in RFI estimates, thereby reducing target energy loss and sidelobe levels in SAR imagery. Performance is demonstrated on data collected with the Army Research Laboratory's UWB rail SAR.
RFI suppression for ultra wideband radar
IEEE Transactions on Aerospace and Electronic Systems ; 33 , 4 ; 1142-1156
1997-10-01
3027060 byte
Article (Journal)
Electronic Resource
English
RFI Suppression for Ultra Wideband Radar
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