Field trials of geophones as arctic acoustic sensors

Authors

  • Stan E. Dosso School of Earth and Ocean Sciences, University of Victoria, Victoria, BC, Canada
  • Garry J. Heard Def. R. and D. Canada-Atlantic, Halifax, NS, Canada
  • Michael Vinnins Def. R. and D. Canada-Ottawa, Ottawa, Ont., Canada
  • Slobodan Jovic Def. R. and D. Canada-Ottawa, Ottawa, Ont., Canada

Keywords:

Acoustic signal processing, Acoustic waves, Algorithms, Global positioning system, Polarization, Sea ice, Sensors, Wave filters, Acoustic sources, Geophones, Seismo-acoustic propagation, Water columns

Abstract

The practical issues concerning the use of ice-mounted geophones as Arctic acoustic sensors are discussed. The issues are the ability to determine absolute bearing to an acoustic source in the water column and the ability to determine absolute sensor bearing via short baseline global positioning system (GPS). A real-time heading determination algorithm was developed using a double-difference carrier phase approach and integer ambiguity resolution on-the-fly to determine the three-dimensional vector between two GPS antennas. Arctic field trials indicated that the approach can resolve the absolute bearing at high latitudes to uncertainties of less than 3°.

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Published

2004-09-01

How to Cite

1.
Dosso SE, Heard GJ, Vinnins M, Jovic S. Field trials of geophones as arctic acoustic sensors. Canadian Acoustics [Internet]. 2004 Sep. 1 [cited 2021 Dec. 3];32(3):198-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1696

Issue

Section

Proceedings of the Acoustics Week in Canada

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