Multi-target acoustic positioning method and system based on near-field source positioning algorithm

Abstract

The invention relates to a multi-target acoustic positioning method and system based on a near-field source positioning algorithm and belongs to multi-target acoustic positioning methods and systems. According to the multi-target acoustic positioning method, the near-field source positioning algorithm in the array signal processing field is applied to the acoustic positioning system, a zero-cross detection method is introduced, and the distance information and the angle information of targets can be obtained through positioning in a high-precision real-time mode. The positioning system comprises an emitting assembly, a receiving assembly and a signal processing and displaying assembly. The multi-target acoustic positioning method and system based on the near-field source positioning algorithm have the advantages that the angle information and the distance information can be obtained through estimation at the same time, the positioning precision is high, the anti-noise capacity is high, the practicability is high, the hiding performance is high, power consumption is small, and the system is table. The multi-target acoustic positioning method and system based on the near-field source positioning algorithm can be widely applied to the military field and the civilian field.

Description

technical field [0001] The invention relates to a multi-target underwater acoustic positioning system, in particular to a method and system for realizing multi-target underwater acoustic positioning based on a near-field source positioning algorithm in the field of array signal processing combined with a zero-crossing detection method. Background technique [0002] With the continuous development of marine resources and the needs of military development, people have higher and higher requirements for underwater vehicle positioning technology, and various countries pay more and more attention to the development of underwater positioning technology. At present, a variety of positioning technologies are widely used in the fields of ocean development, ocean engineering and coastal defense technology to locate underwater targets. Underwater acoustic positioning (underwater acoustic positioning) is a technology for determining the azimuth and distance of an underwater carrier or t...

AI Technical Summary

Problems solved by technology

[0010] The present invention provides a multi-target underwater acoustic positioning method and system based on a near-field source positioning algorithm to solve the problem of low positioning accuracy, poor real-time performance, difficulty in simultaneously extracting angle and distance information, and unsuitable embedding in current multi-target underwater acoustic short-distance positioning. to portable device medium problem

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