Modeling, Algorithmic and Performance Issues in Deepwater Ranging Sound Systems

The design of underwater acoustic ranging systems is considered in three of its basic components: modeling assumptions, algorithmic implementations and performance results. A new description for the geometry is presented, whereby the array is given by a set of (possibly random) ordinary differential equations. The motions are either parameterized by a vector of unknown parameters (including range) or also described as finite dimensional stochastic processes. Hierarchy configurations are disttinguished, leading to different receiver design methodologies and implementations The advantages and pitfalls of each are analysed. Basic points are illustrated in the context of a simple, meaningful example.