Development of Underwater Multi-channel Real-time Ranging and Positioning System

In order to solve the problem of underwater system multiple hydrophone units to obtain the target real-time distance and position in ocean engineering, this paper proposes a multiple redundant position algorithm based on time-delay estimation. First the article introduces the mathematical model of real-time underwater acoustic signal processing and positioning, then the overall design of the system is carried out, followed by the subsystem design, and developed the prototype system. Finally the system is validated by sea test. The results show that the system has the advantages of fewer wild spots, high positioning accuracy. And the system is easy, reliable and highly integrated.