Robot and insect navigation by polarized skylight

F. J. Smith, D. W. Stewart

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

1 Citation (Scopus)

Abstract

A study of a large number of published experiments on the behaviour of insects navigating by skylight has led to the design of a system for navigation in lightly clouded skies, suitable for a robot or drone. The design is based on the measurement of the directions in the sky at which the polarization angle, i.e. the angle χ between the polarized E-vector and the meridian, equals ±π/4 or ±(π/4 + π/3) or ±(π/4 - π/3). For any one of these three options, at any given elevation, there are usually 4 such directions and these directions can give the azimuth of the sun accurately in a few short steps, as an insect can do. A simulation shows that this compass is accurate as well as simple and well suited for an insect or robot. A major advantage of this design is that it is close to being invariant to variable cloud cover. Also if at least two of these 12 directions are observed the solar azimuth can still be found by a robot, and possibly by an insect.

Original languageEnglish
Title of host publicationBIOSIGNALS 2014 - 7th Int. Conference on Bio-Inspired Systems and Signal Processing, Proceedings; Part of 7th Int. Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2014
PublisherSciTePress
Pages183-188
Number of pages6
ISBN (Print)9789897580116
Publication statusPublished - 03 Mar 2014
Event7th International Conference on Bio-Inspired Systems and Signal Processing, BIOSIGNALS 2014 - Part of 7th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2014 - Loire Valley, Angers, France
Duration: 03 Mar 201406 Mar 2014
http://www.biosignals.biostec.org/Home.aspx?y=2014

Conference

Conference7th International Conference on Bio-Inspired Systems and Signal Processing, BIOSIGNALS 2014 - Part of 7th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2014
CountryFrance
CityAngers
Period03/03/201406/03/2014
Internet address

Keywords

  • Clouds
  • Navigation
  • POL
  • Polarization
  • Robotic Navigation
  • Skylight

ASJC Scopus subject areas

  • Biomedical Engineering
  • Signal Processing

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  • Cite this

    Smith, F. J., & Stewart, D. W. (2014). Robot and insect navigation by polarized skylight. In BIOSIGNALS 2014 - 7th Int. Conference on Bio-Inspired Systems and Signal Processing, Proceedings; Part of 7th Int. Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2014 (pp. 183-188). SciTePress.