Application of Surface Sound Speed Measurements in Post-processing for Multi-Sector Multibeam Echosounders

Authors

  • J.D. Beaudoin Ocean Mapping Group (OMG), University of New Brunswick
  • J.E. Hughes Clarke Ocean Mapping Group (OMG), University of New Brunswick
  • J.E. Bartlett Canadian Hydrographic Service

Abstract

Given sufficient data from ancillary sensors, swath sonar systems can generate sounding solutions in real time. The absolute accuracy o f these solutions depends both on the sonar-relative range and angle determination, and particularly on the quality of the aiding information. In this paper, we examine the correction of imperfect surface sound speed information for a multi-sector swath sonar. Difficulties arise from: (1) sector timings and boundaries changing with operational mode, and (2) insufficient information to determine the transmit sector associated with a receive beam. A number of post-processing strategies are proposed and the specific steps in implementation are described in detail.

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Published

2004-12-12

How to Cite

Beaudoin, J., Clarke, J. H., & Bartlett, J. (2004). Application of Surface Sound Speed Measurements in Post-processing for Multi-Sector Multibeam Echosounders. The International Hydrographic Review, 5(3). Retrieved from https://journals.lib.unb.ca/index.php/ihr/article/view/20675

Issue

Volume 5, Number 3 (2004)

Section

Articles

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 Anders, F.J. and Byrnes, M.R.(1991). “Accuracy of shoreline change rates as determined from maps and aerial photographs”, Shore and Beach, 59, pp. 17-26.

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Foley, J.D., van Dam, A., Feiner, S. K. and Hughes, J.F. (1990), Computer Graphics – Principles and Practice, 2nd ed., Addison-Wesley, Reading, MA.

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Smith, A. (1988). Colour photomapping. Report NRC-01-512. National Research Centre. Ottawa, Canada.

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