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.
|Proceedings of Meetings on Acoustics
|Published - 2018
|175th Meeting of the Acoustical Society of America - Minneapolis, United States
Duration: May 7 2018 → May 11 2018
All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics