Stability and identification of ocean acoustic multipaths
作者:
John L. Spiesberger,
Robert C. Spindel,
Kurt Metzger,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1980)
卷期:
Volume 67,
issue 6
页码: 2011-2017
ISSN:0001-4966
年代: 1980
DOI:10.1121/1.384441
出版商: Acoustical Society of America
数据来源: AIP
摘要:
A phase‐coded signal with 64‐ms resolution was transmitted at 10‐min intervals for a 48‐day period between an acoustic source moored at 2000‐m depth and a bottom mounted receiver at ∠3000‐m depth and at ∠900‐km range. About 16 multipaths were resolved. They were stable in the presence of ocean fluctuations and could be identified (with some exceptions) from ray theory. The precision to which daily travel‐time fluctuations along multipaths could be measured was better than 10 ms. The resolution, stability, identification, and precision is adequate for acoustic monitoring of mesoscale ocean variability by measuring travel‐time variations along ray paths.
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