Sub‐meter acoustic surveying |
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| Authors: | Lester Q Spielvogel Narendra K Saxena Stevens P Tucker |
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| Institution: | 1. SEACO, Inc. , Kailua, Hawaii;2. Hawaii and Naval Postgraduate School , University of Hawaii at Manoa Honolulu , Monterey, California;3. Naval Postgraduate School , Monterey, California |
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| Abstract: | Abstract During May 1985, a comprehensive GPS and acoustic navigation data set was collected off the Monterey, California coast. Three types of GPS units, a LORAN‐C, and a Miniranger operated concurrently with an OCEANO acoustic system to resolve state‐of‐the‐art accuracies for at‐sea geodetic positioning. This report details the acoustic system which displayed baseline errors of only ±0.25 m over distances to 2600 m. Unfiltered point‐to‐point acoustic navigation errors had a standard deviation of ± 1.25 m, which included ship motion errors in addition to surveying errors. Ninety percent of the stations had navigation standard deviations below ±0.75 m The experiment showed that sub‐meter acoustic surveying is the state‐of‐the‐art. |
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