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DAT Datasheet

DAT Datasheet
2Pages

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PRODUCT DATASHEET TELEDYNE MARINE Benthos DAT Directional Acoustic Transponder (DAT) All-In-One: Range, Bearing, and Data Communication The Benthos DAT (Directional Acoustic Transponder) is an extension to the Teledyne Benthos ATM-900 Series modem which automatically estimates the azimuthal and vertical arrival angles of a message sent by a remote modem or acoustic pinger. The system is a “modified” ultra-short baseline (USBL) which uses a broadband component of a typical modem message to form estimates of arrival angle(s). While conventional USBL devices employ tonal signals, the appropriate processing of wide band signals provides far better combined range and arrival angle estimation, especially at low Signal to Noise Ratio (SNR). The device offers a clear 360 degree field of view in azimuth, and an approximate vertical coverage spanning + 90º overhead to -50º below horizontal. Optionally, the DAT can be operated in a passive pinger receiver mode for locating acoustic sound sources including Black Box pingers. The DAT’s compact size and low power consumption make it appropriate for both surface and subsurface platforms. Acoustic modem, USBL, and pinger locator functionality can now be integrated on Autonomous Underwater Vehicles in one system. Mounting the DAT on an AUV, as an inverted USBL system, can provide navigational accuracy unsurpassed by other systems. PRODUCT FEATURES • Acoustic Modem and USBL Functionality in One Package Compact Form Factor L ower Power Consumption Multiple frequency options (LF, MF, and Band-C) A vailable either in a pressure housing or as an OEM board set with matching transduc

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PRODUCT DATASHEET TELEDYNE MARINE Benthos DAT Directional Acoustic Transponder (DAT) TECHNICAL SPECIFICATIONS ACOUSTIC MODEM Data Rate Data Storage Processing Distances/Range Frequencies 140 - 15,360 bps 6MB datalogger standard Data redundancy, 1/2 rate convolutional coding multipath guard period selection MFSK and PSK modulation schemes 2 - 6 km common, greater distances possible 2 0+ km available using repeater functionality Low frequency (LF) 9-14 kHz M id frequency (MF) 16-21 kHz Band C 22 – 27 kHz Transmit omni-directional (Toroidal pattern) Remote transducer head options available....

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DAT Datasheet 2Pages

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DAT Datasheet
2Pages