Abstract A real-time algorithm for autonomous underwater vehicle (AUV) relative position and attitude determination has been proposed, which uses range measurements to acoustic beacons positioned at small distances to each other on a common platform. Mutual arrangement of AUV and beacons is a priori unknown, and their time scales are not synchronized. The developed algorithm considers the nonlinear character of measurements while featuring a lower computational burden compared to the maximum likelihood method. Results from simulation and postprocessing of real data with different AUV arrangements relative to the beacons are provided.
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