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Chirp-Partition Based Pre-Distortion for Reduced Carrier Leakage in Circulator-Based Wide-Band FMCW Radar Systems (2017)

Kim, Y ; Chang, M-C ; Tang, A ; [et al.]

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Publication Date: 2019-07-13

Description: This paper presents a digital pre-distortion scheme to reduce carrier-leakage in wideband FMCW radars that use a circulator to provide isolation between the transmitter and receiver. The proposed digital pre-distortion technique first power combines the leakage signal with a second pre-distorting signal prior to entering the radar receiver. The Phase & amplitude of this pre-distorting signal are adjusted for partitions of the FMCW chirp to provide cancellation. Transitions between sections are pulse shaped to eliminate broadband frequency content.

Keywords: Communications and Radar

Type: JPL-CL-CL#17-1048 , IEEE MTT-S International Microwave Symposium; Jun 04, 2017 - Jun 09, 2017; Honolulu, HI; Afghanistan

Format: text

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