Design study for a moored surface-scanning sonar
1993
Freitag, Lee E. | Plueddemann, Albert J. | Merriam, Steve
Funding was provided by a grant from the Webster Foundation to theWoods Hole Oceanographic Institution.
Show more [+] Less [-]This report contains the results of a design study for a surface scanning sonar instrument capable of long-term deployment onocean moorings. The instrument is intended to sample the bubble field just below the ocean's surface and compute thebackscattered intensity and Doppler velocity in small unit volumes. The principal motivation for the development of such aninstrument is to enhance the study of upper ocean processes by utilizing the ability of the sonar to detect surface waves andLangmuir circulation. Important design parameters for the instrument are investigated and a detailed design proposed. Key technicalissues such as the trade-offs among spatial resolution, temporal resolution, velocity precision, total range, and power are discussed.The azimuthal motion of the instrument on a mooring is considered as a potential problem, and possible solutions are discussed.Matlab functions used for the investigations are included in an appendix.
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