An ultrasonic communication system for biotelemetry in extremely shallow waters

  • Authors:
  • Gregory S. Parsons;Shaolin Peng;Alexander G. Dean

  • Affiliations:
  • North Carolina State University, Raleigh, NC, USA;North Carolina State University, Raleigh, NC, USA;North Carolina State University, Raleigh, NC, USA

  • Venue:
  • Proceedings of the third ACM international workshop on Underwater Networks
  • Year:
  • 2008

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Abstract

This paper introduces an ultrasonic communication system for biotelemetry in extremely shallow waters (under 3 meters). This application domain is notable for its tight constraints on device size, weight, and energy. We have developed this communication system as a fundamental component of the RaPTEX toolchain, which aims to simplify the prototyping and analysis of underwater communication systems. This paper's primary contribution is hardware and software for an ultrasonic communications system which successfully operates in extremely shallow waters. It is tailored for short-range disposable biotelemetry applications, as it can be implemented with simple hardware and inexpensive, power-sipping microcontrollers, rather than more demanding digital signal processors. The system presented also has a very low part count, not only making it small and lightweight but also cheap so it can be deployed in large numbers. We present the system design and then evaluate its performance.