Design considerations for a compact correlation velocity log

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Abstract

A Correlation Velocity Log (CVL) has some advantages (lower source level and operating frequency) over a Doppler Velocity Log (DVL) as a navigational aid for an unmanned underwater vehicle (UUV). A CVL provides a bottom referenced velocity estimate by estimating displacement using the incoherently scattered field from an acoustic projector and an array of hydrophones. A small low cost UUV generally operates in shallow water and has limited space and power available for a navigational aid, creating added constraints for the design of a CVL. The important design considerations (such as size, array geometry, operating frequency, and bandwidth) will be discussed as they relate to accuracy of the velocity estimate and operating range.

Original languageEnglish (US)
Article number070003
JournalProceedings of Meetings on Acoustics
Volume33
Issue number1
DOIs
StatePublished - Jan 1 2018
Event175th Meeting of the Acoustical Society of America - Minneapolis, United States
Duration: May 7 2018May 11 2018

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All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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