Design and Evaluation of a Compact Correlation Velocity Log for Small Underwater Vehicles

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


The correlation velocity log (CVL) is an acoustic navigation aid that exploits the spatial coherence of seafloor scattering to estimate the motion of an array relative to the seafloor. Accurate velocity estimation from a CVL is closely tied to the array geometry, requiring large and densely packed receive arrays in order to operate over a range of conditions. This paper presents an alternative operating paradigm, the spatial-temporal CVL, that blends both spatial and temporal velocity estimation techniques to allow accurate navigation from sparse arrays. By trading hardware complexity for signal processing complexity, a spatial-temporal CVL is well suited to small platforms that operate in shallow water for which other navigation aids may be unsuitable. A prototype array was developed and evaluated at Seneca Lake, New York over a range of operating conditions. The experimental results demonstrate the viability of this type of sensor as an acoustic navigation aid and illustrate some of the important considerations in the design.

Original languageEnglish (US)
Title of host publicationOCEANS 2022 Hampton Roads
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665468091
StatePublished - 2022
Event2022 OCEANS Hampton Roads, OCEANS 2022 - Hampton Roads, United States
Duration: Oct 17 2022Oct 20 2022

Publication series

NameOceans Conference Record (IEEE)
ISSN (Print)0197-7385


Conference2022 OCEANS Hampton Roads, OCEANS 2022
Country/TerritoryUnited States
CityHampton Roads

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Ocean Engineering


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