A Model Based System for Simultaneously Estimating Bathymetry and Sound Speed Characteristics - Simulation Results
نویسنده
چکیده
This paper presents an adaptive bathymetric estimation algorithm (ABE) for use with forward-looking hull mounted sonar in shallow water environments. In addition to providing improved positional estimates of ocean bottom contacts in front of the host vehicle, it will automatically estimate and adapt to changes in the local sound speed. Preliminary simulation results are given for a simple two-dimensional encounter of a single bottom contact using an isovelocity, straight line ray model.
منابع مشابه
A Model Based System for Simultaneously Estimating Bathymetry and Sound Speed Profile Characteristics
The ABE algorithm uses parametric SSP models of increasing complexity and tunes them “on the fly” to match the ohsewed refraction of the sonar bottom returns. The technique is an application of the Extended Kalman Filter (EKF) which fuses on-hoard navigational data of the vessel (from GPS or INS systems), multiple active forward-looking sonar returns from bottom contacts (time of arrival and an...
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