Abstract
Acoustic phased arrays are of great utility in various applications for acoustical oceanography and ocean acoustics, such as tomography and matched-field processing. Internal storage of data from such arrays both limits the total amount of data taken (usually to a few gigabytes) and deprives the user of real-time advantages, such as remote control of the array’s sampling, much greater data capacity, and real-time evaluation and processing. To ensure high bandwidth, radio telemetry to a ship or shore station is required. In August 1992, a collaboration of WHOI and NPS researchers deployed a prototype telemetered vertical line array (VLA) system using a radio link at 902–928 MHz with a one nautical mile effective range. A local area network (LAN) ethernet link was established between the surface buoy computer controlling the array and the shipboard computer ensuring rapid, error-free communications. This and other details of how this technology is implemented, other advantages and disadvantages, and the future of such technology will be discussed. [Work supported by ONR.]
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