Underwater target localization method based on genetic MUSIC algorithm

An underwater target and positioning method technology, applied in underwater positioning, underwater target positioning based on the MUSIC algorithm, can solve problems such as algorithm iteration calculations are not considered, reduce complex traversal times and calculation time, and improve search The success rate and the effect of reducing the amount of iterative calculation

Pending Publication Date: 2019-04-16
HARBIN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The above research results are basically optimized and improved for the accuracy of underwater target positioning, without considering the amount of iterative calculation of the algorithm and the problem of rapid positioning

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  • Underwater target localization method based on genetic MUSIC algorithm
  • Underwater target localization method based on genetic MUSIC algorithm
  • Underwater target localization method based on genetic MUSIC algorithm

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0028] A kind of underwater target localization method based on genetic MUSIC algorithm of the present embodimen...

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Abstract

The invention provides an underwater target localization method based on a genetic MUSIC algorithm, so as to improve the search success rate, reduce the iterative calculation amount, and improve the precision, and enhance the real-time effect. The method belongs to the field of underwater detection. The method provided by the invention comprises the steps that S1 array receiving data for underwater target positioning are acquired; the MUSIC algorithm is combined to acquire an expression of the MUSIC spectrum; and the expression is used as an fitness function; S2 parameters of the genetic algorithm are set, and an initial population is determined; S3 the fitness function in S1 is used to evaluate the fitness of each individual in a contemporary population, and the fitness magnitude is calculated; S4 whether the contemporary population satisfies a preset stop iteration condition is determined; if so, turning to S6 is carried out; if not, turning to S5 is carried out; S5 through selection, crossover and mutation operations, the contemporary population generates offspring to build the next generation of population, and turning to S3 is carried out; and S6 iteration is stopped; the individual optimal solution in the contemporary population is output; the incident angle of a target is determined by judging the fitness.

Description

technical field [0001] The invention provides an underwater positioning method, in particular to an underwater target positioning method based on a MUSIC algorithm, which belongs to the field of underwater detection. Background technique [0002] The richness of marine natural resources and the vastness of the sea make it the top priority of our country's military strategy. With the rapid development of marine military and underwater acoustic engineering technology, underwater target positioning is an urgent technology to improve accuracy. Direction of arrival (DOA) estimation is an important direction of array signal processing. In essence, DOA estimation is a method of determining the position of a signal source using spatial spectrum estimation. With the continuous development of science and technology, and the maturity of software and hardware, DOA estimation has also obtained many practical applications. At present, the theory of high-resolution and high-precision di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/22G06N3/00G06F17/16
CPCG06F17/16G06N3/006G01S5/22
Inventor 兰朝凤罗大钧刘岩赵宏运刘春东
Owner HARBIN UNIV OF SCI & TECH
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