A high range resolution 9.4/18.8 GHz harmonic radar for bees searching

Zuo-Min Tsai *, Pei Hung Jau, Nai Chung Kuo, Jui Chi Kao, Kun You Lin, Fan Ren Chang, En Cheng Yang, Huei Wang

*Corresponding author for this work

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

9 Scopus citations

Abstract

This paper demonstrates a 9.4/18.8 GHz harmonic radar for bee searching to investigate the phenomenon of colony collapse disorder (CCD). The radar system transmits a pulsed coarse/acquisition code (C/A code) signal with 0° and 90° shift key modulation and then receives the C/A code signal from transponders attached on the bees in BPSK modulation. Using the technique of C/A code positioning, a distance resolution of 0.15 m is achieved. The transponders are designed to minimize the effect from the bodies of bees. The outdoor experiments indicate the sensitivity of the radar system to be 95 dBm and with the distance of 65 m with 6-W peak power. With 3-kW peak power, the distance at which the bees can be located is expected to be 450 m.

Original languageEnglish
Title of host publicationIMS 2012 - 2012 IEEE MTT-S International Microwave Symposium
DOIs
StatePublished - 3 Oct 2012
Event2012 IEEE MTT-S International Microwave Symposium, IMS 2012 - Montreal, QC, Canada
Duration: 17 Jun 201222 Jun 2012

Publication series

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

Conference

Conference2012 IEEE MTT-S International Microwave Symposium, IMS 2012
CountryCanada
CityMontreal, QC
Period17/06/1222/06/12

Keywords

  • C/A code
  • CCD
  • Harmonic radar
  • Transponder

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