On the Use of Additional Transmitters for Increasing Detection Range in Harmonic Radar

Anastasia Lavrenko, Stephen Pawson, Jim Cavers

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

Abstract

Harmonic radar is commonly used in localisation and tracking applications where weight and size restrictions do not allow the use of active radio transmitters. It relies on the operation of a passive transponder tag attached to the target that creates a harmonic response when illuminated with a radio signal. The main bottleneck of harmonic radar systems is low conversion efficiency of the tags and, as a consequence, low detection ranges. In this paper, we propose an approach to increase maximum detectable range by using additional helper transmitters that emit an unmodulated carrier. We analyse the harmonic tag response to a superposition of transmitted signals and show that it yields an amplitude gain in the tag output signal. As a result, we can increase the detection range by a factor proportional to the number of additional nodes while keeping the system cost-efficient and lightweight.

Original languageEnglish
Title of host publication2019, 13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019 - Proceedings
PublisherIEEE
ISBN (Electronic)9781728121949
DOIs
Publication statusPublished - 27 Feb 2020
Externally publishedYes
Event13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019 - Surfers Paradise, Gold Coast, Australia
Duration: 16 Dec 201918 Dec 2019
Conference number: 13
https://www.dspcs-witsp.com/icspcs_2019/index.html

Conference

Conference13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019
Abbreviated titleICSPCS 2019
CountryAustralia
CityGold Coast
Period16/12/1918/12/19
Internet address

Keywords

  • harmonic conversion
  • harmonic radar
  • multistatic
  • range estimation

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    Lavrenko, A., Pawson, S., & Cavers, J. (2020). On the Use of Additional Transmitters for Increasing Detection Range in Harmonic Radar. In 2019, 13th International Conference on Signal Processing and Communication Systems, ICSPCS 2019 - Proceedings [9008736] IEEE. https://doi.org/10.1109/ICSPCS47537.2019.9008736