Intermodulation Radar with Dynamic Fundamental Tone Cancellation for Linearity Improvement

Dongyang Tang, Ashish Mishra, Changzhi Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Intermodulation radar takes advantage of device nonlinear behavior for enhanced target detection. By selectively down-converting intermodulation tones at the radar receiver, it can distinguish nonlinear targets from linear background. One challenge of designing intermodulation radars is the linearity of the transceiver. The linearity of the receiver is critical for effectively suppressing the potentially stronger fundamental tones received by the receiver. In this paper, an intermodulation radar receiver with dynamic fundamental tone cancellation is proposed to relax the linearity requirement for the receiver. The impact of the phase and amplitude mismatch between the cancellation tones and the received tones is studied to understand specifications and performance limits of the proposed architecture.

Original languageEnglish
Title of host publication2021 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages63-65
Number of pages3
ISBN (Electronic)9780738123905
DOIs
StatePublished - Jan 17 2021
Event2021 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2021 - Virtual, San Diego, United States
Duration: Jan 17 2021Jan 22 2021

Publication series

Name2021 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2021

Conference

Conference2021 IEEE Topical Conference on Wireless Sensors and Sensor Networks, WiSNeT 2021
Country/TerritoryUnited States
CityVirtual, San Diego
Period01/17/2101/22/21

Keywords

  • Clutter rejection
  • intermodulation radar
  • linearity
  • sensitivity
  • third-order interception
  • tone cancellation

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