Hydroacoustic Position Reference

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Hydroacoustic Position Reference is a system to measure the relative position between a transmitter and a receiver under water. It is sometimes used for vessels with dynamic positioning to either measure the relative position between a fixed underwater transmitter or to a mobile under water vehicle (for example ROV).[1]

References[edit]

  1. ^ "Kongsberg: Acoustic underwater positioning and navigation systems HiPAP and HPR".