Design of a Low-Cost Underwater Acoustic Modem

There has been an increasing interest in creating short-range, low data rate, underwater wireless sensor networks for scientific marine exploration and monitoring. However, the lack of an inexpensive, underwater acoustic modem is preventing the proliferation of these sensor networks. Thus, we are bu...

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Bibliographic Details
Published in:IEEE embedded systems letters 2010-09, Vol.2 (3), p.58-61
Main Authors: Benson, B, Ying Li, Faunce, B, Domond, K, Kimball, D, Schurgers, C, Kastner, R
Format: Article
Language:English
Subjects:
Acoustic sensors
Acoustic transducers
Buildings
Construction materials
Costs
Design engineering
Marine
Microprocessors
Modems
Monitoring
Networks
Piezoelectric materials
Sensors
Signal design
Transducers
Underwater acoustic modem design
Underwater acoustics
underwater sensor networks
Wireless sensor networks
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Summary:There has been an increasing interest in creating short-range, low data rate, underwater wireless sensor networks for scientific marine exploration and monitoring. However, the lack of an inexpensive, underwater acoustic modem is preventing the proliferation of these sensor networks. Thus, we are building an underwater acoustic modem starting with the most critical component from a cost perspective-the transducer. The design substitutes a commercial transducer with a homemade transducer using cheap piezoceramic material and builds the rest of the modem's components around the properties of the transducer to extract as much performance as possible. This letter describes the high level design, and cost and power characteristics of each of the major modem components: the transducer, the analog transceiver, and the digital signal processor of our modem prototype.
ISSN:1943-0663
1943-0671
DOI:10.1109/LES.2010.2050191