Implementation and experimental validation of underwater measurement and positioning technology based on small transponder acoustic beacons

Abstract

The security of Unmanned Underwater Vehicles (UUV) or frogmen operating underwater is increasingly significant. Hence, the movement and real-time locations of divers and underwater vehicles need to become timely and traceable. This paper proposes a small transponder type underwater positioning acoustic beacon with a distress call function for the fast and accurate measurement and positioning needs of Unmanned Underwater Vehicle, divers, and other underwater operations. Specifically, the circuit composition and detection mechanism of acoustic beacons are described. The design method and structural layout of the acoustic beacon body and interior are detailed. Furthermore, the data and effects of on-lake tests such as maximum positioning distance verification, range error test, directional error test, and underwater maneuvering trajectory measurement are analyzed.