Date of Completion

5-31-2011

Embargo Period

7-25-2011

Advisors

Jun-Hong Cui; Peter Willett

Field of Study

Electrical Engineering

Degree

Master of Science

Open Access

Open Access

Abstract

In this paper, we investigate the problem of localizing an underwater sensor node basedon message broadcasting from multiple surface nodes. With the time-of-arrival measurementsfrom a DSP-based multicarrier modem, each sensor node localizes itself based on the traveltime differences among multiple senders to the receiver. Using one-way message passing, such asolution can scale to accommodate a large number of nodes in a network. We consider the issuefrom not only the physical layer, but also at the node processing layer by incorporating a trackingsolution. We present simulation results as well as preliminary testing results in a swimming poolwith both stationary and moving receivers.

Major Advisor

Shengli Zhou

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