1991 · 12 citations · 10 references
EngineeringUnderwater Acoustic CommunicationUnderwater SystemPositioning SystemEfficient Search SchemeMarine EngineeringUnderwater Radiating SourcePassive LocalizationPrecision NavigationLocalizationOcean AcousticsSpeaker LocalizationInstrumentationUnderwater CommunicationSynthetic Aperture RadarAntennaInverse ProblemsRf LocalizationIntermediate VariablesSignal ProcessingRadarArray ProcessingOcean EngineeringAerospace EngineeringUnderwater Sensing
An efficient search scheme for an underwater radiating source is developed by introducing intermediate variables which are products of some of the unknowns. The search dimension is only two, in x-y position, instead of five. The resultant intermediate equations become linear and are easier to solve; the major calculation at each grid point requires an inversion of a 3*3 matrix. The Cramer-Rao bound for localization is also given, together with simulation results that verify the method.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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