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A Low-Frequency Sonar for SensorAdaptive, Multistatic, Detection and Classification of Underwater Targets with AUVs (2003)
| Venue: | Proc. Oceans |
| Citations: | 8 - 4 self |
BibTeX
@ARTICLE{Eickstedt03alow-frequency,
author = {Donald P. Eickstedt and Henrik Schmidt},
title = {A Low-Frequency Sonar for SensorAdaptive, Multistatic, Detection and Classification of Underwater Targets with AUVs},
journal = {Proc. Oceans},
year = {2003},
pages = {1440--1447}
}
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Abstract
development of sensor-adaptive autonomous underwater vehicle (AUV) technology specifically directed toward rapid environmental assessment and mine countermeasures in coastal environments. As part of the effort, MIT is developing the GOATS multi-static sonar concept with the goal of being able to detect and classify targets on and within the seabed in very shallow water. To support this project, a high performance, multi-channel sonar was developed as a payload for the Odyssey-III class AUVs used by MIT and a number of other institutions. This sonar payload is capable of low/mid frequency target insonification, real-time processing of 16 array channels and communication with the main vehicle computer for realtime, adaptive mission coordination. The sonar payload also has the capability to time synchronize with the payloads on other AUVs with microsecond accuracy and the ability to maintain tight time synchronization while all vehicles are underwater, thereby enabling multi-static processing of sonar returns. The entire sonar payload was designed and implemented as a virtual sensor with respect to the main vehicle computer. Results from two major international experiments are presented in which both the time synchronization capabilities and the online detection capabilities of the sonar were tested and in which we believe the first ever online target detections were achieved with a system of this type. I.
Keyphrases
underwater target low-frequency sonar sonar payload main vehicle computer odyssey-iii class auvs rapid environmental assessment mine countermeasure adaptive mission coordination low mid frequency target insonification online detection capability multi-channel sonar high performance sonar return target detection entire sonar payload shallow water time synchronization capability virtual sensor coastal environment microsecond accuracy multi-static processing tight time synchronization array channel sensor-adaptive autonomous underwater vehicle goat multi-static sonar concept major international experiment real-time processing
