SYSTEMS AND METHODS FOR RADIO FREQUENCY INTERFERENCE SUPPRESSION IN RADAR

A system for suppressing radio frequency interference (RFI) or electromagnetic interference (EMI) in a radar or magnetic resonance imaging system that scans target(s) with energy and receives signals that reflect or echo from the target(s). The system involves obtaining RFI/EMI data in the absence o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LEONG, Tze Lun, ZHAO, Yujiao, WU, Ed Xuekui
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES CALCULATING COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS COMPUTING COUNTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A system for suppressing radio frequency interference (RFI) or electromagnetic interference (EMI) in a radar or magnetic resonance imaging system that scans target(s) with energy and receives signals that reflect or echo from the target(s). The system involves obtaining RFI/EMI data in the absence of signals of interest in the scanning system using at least one primary antenna and a plurality of reference antennas. The reference antennas are designed and arranged to detect RFI/EMI signals but not signals of interest in the scanning system. Simultaneously a model, e.g. CNN, is trained with the RFI/EMI data to determine the non-linear signal mappings among primary and reference antennas. The trained model is applied to predict the RFI/EMI received by the primary antenna in the presence of signals of interest. Finally, the RFI/EMI signals received by the primary antenna are removed by subtracting out the predicted RFI/EMI.