Chirp-partition based pre-distortion for reduced carrier leakage in circulator-based wide-band FMCW radar systems

A. Tang, Y. Kim, L. Du, T. Reck, Mau-Chung Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

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.

Original languageEnglish
Title of host publication2017 IEEE MTT-S International Microwave Symposium, IMS 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1412-1414
Number of pages3
ISBN (Electronic)9781509063604
DOIs
StatePublished - 4 Oct 2017
Event2017 IEEE MTT-S International Microwave Symposium, IMS 2017 - Honololu, United States
Duration: 4 Jun 20179 Jun 2017

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2017 IEEE MTT-S International Microwave Symposium, IMS 2017
CountryUnited States
CityHonololu
Period4/06/179/06/17

Keywords

  • Circulator
  • FMCW
  • Pre Distorter

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    Tang, A., Kim, Y., Du, L., Reck, T., & Chang, M-C. (2017). Chirp-partition based pre-distortion for reduced carrier leakage in circulator-based wide-band FMCW radar systems. In 2017 IEEE MTT-S International Microwave Symposium, IMS 2017 (pp. 1412-1414). [8058882] (IEEE MTT-S International Microwave Symposium Digest). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSYM.2017.8058882