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  4. A two-stage approach for direct signal and clutter cancellation in passive radar on moving platforms
 
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2019
Conference Paper
Title

A two-stage approach for direct signal and clutter cancellation in passive radar on moving platforms

Abstract
This paper addresses the problem of direct signal interference (DSI) and clutter cancellation for passive radar systems on moving platforms using displaced phase centre antenna (DPCA) approach in the presence of receive channels imbalance. First, we show that using the signal emitted by the illuminator of opportunity as a source for channels calibration might be ineffective when DSI and clutter echoes have different directions of arrival. Then, a calibration approach is presented, based on supervised selection of clutter areas in the range-Doppler map. Finally, a two-stage strategy is presented, composed of an ECA-based DSI removal prior to DPCA clutter cancellation, which doesn't require supervised selection of the calibration area. The effectiveness of this scheme in the joint suppression of DSI and clutter is shown against real data.
Author(s)
Blasone, Giovanni Paolo
Colone, Fabiola
Lombardo, Pierfrancesco
Wojaczek, Philipp
Cristallini, Diego  
Mainwork
IEEE Radar Conference, RadarConf 2019  
Conference
Radar Conference (RadarConf) 2019  
Open Access
DOI
10.1109/RADAR.2019.8835704
Language
English
Fraunhofer-Institut für Hochfrequenzphysik und Radartechnik FHR  
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