An underwater positioning system and a method

Abstract

The invention is an underwater positioning system, which comprises a control center, a processing center for processing positioning information and a sonar equipment; the control center is connected with the processing center and the sonar equipment; the processing center is connected with the sonar equipment; according to single carrier of a time stamp of an encapsulation package of a reference clock, an information frame is transmitted by the processing center which also transmits the encapsulated transmitting information frame to the sonar equipment, and processes a reflected information frame received from the sonar equipment to obtain corresponded positioning information; the sonar equipment is applied to realizing underwater dispatch of the single carrier information frame provided with the time stamp; the control center is applied to controlling of the sonar equipment to dispatch the information frame, and controlling of the processing center to encapsulate the transmitted information frame, analyzing information frame, and calculating positioning information. The invention also relates to a positioning method based on the system, which effectively solves problems of current underwater positioning of obstruction among codes, echo recognition, continuous positioning and maximum detectable range, etc.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic communication, in particular to an underwater positioning system and method. Background technique [0002] With the increasing development of marine development activities, seabed landform survey, hydrological data collection, underwater search, underwater robots, military submarines, etc., have made underwater positioning technology more and more people's attention, and it also plays a role in submarine operations. play an increasingly important role. [0003] As we all know, underwater wireless communication mostly transmits information through sound waves. The Global Positioning System (GPS) commonly used on land uses radio waves, which cannot penetrate underwater; and in the past underwater positioning technology, The echo detection method is used to calculate the position of the underwater target, that is, the sonar device sends a short pulse, and the receiving end measures the t...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the above-mentioned technical problems existing in the existing underwater positioning technology, the primary purpose of the present invention is to provide an underwater positioning system, which effectively solves the problems of inter-symbol interference, echo recognition, and continuous positioning in the current underwater positioning. and issues such as the maximum measurable distance

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