Method for measuring position of underwater unknown object by submersible

Abstract

A method for measuring the position of an underwater unknown object by a submersible belongs to the technical field of underwater target positioning, and is characterized in that a front detection sonar and a rear detection sonar are respectively mounted in front of and behind a horizontal center connecting line of the submersible, the center points of the front detection sonar and the rear detection sonar are A and C, the distance between the front detection sonar and the rear detection sonar is L1, a data processing module is mounted in the submersible, and the horizontal rotation center point of the submersible is F; an unknown object under water can be found, the center point of the unknown object is E. The positioning method comprises the following steps: (1) respectively measuring distances AE and CE from the submersible to an unknown object through the front detection sonar and the rear detection sonar; (2) horizontally rotating the submersible by 90 degrees by taking the center point F of the submersible as a rotation center, changing the positions of the front detection sonar and the rear detection sonar, changing the positions of the points A and C, changing the point A into a point D, changing the point C into a point B, and measuring the distances BE and DE from the unknown object again, and processing the distances measured twice by the data processing module, so that the unknown object can be accurately positioned. The device has the advantages of simple structure, low manufacturing cost, simplicity and convenience in operation and accuracy and reliability in positioning.

Description

technical field [0001] The invention belongs to the technical field of underwater target positioning, and in particular relates to a method for measuring the position of underwater unknown objects by a submersible. Background technique [0002] At present, the underwater sonar base array positioning and orientation device used for underwater object finding and underwater security protection is composed of target sonar and base array. According to the mechanism of action, it is divided into two types: response beacon and broadcast beacon. Sonar equipment is too bulky and expensive to be suitable for small and flexible applications, and broadcast beacons do not have high stealth and are not suitable for security applications. Contents of the invention [0003] The invention provides a method for measuring the position of an underwater unknown object by a submersible, which can effectively overcome the shortcomings of the prior art. [0004] The present invention is implemen...

AI Technical Summary

Problems solved by technology

[0002] At present, the underwater sonar base array positioning and orientation device used for underwater object finding and underwater security protection is composed of target sonar and base array. According to the mechanism of action, it is divided into two types: response beacon and broadcast beacon. Sonar equipment is too bulky and expensive to be suitable for small flexible applications, and broadcast beacons do not have high stealth and are not suitable for security applications

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