A method, apparatus, electronic device, and storage medium for locating small targets in shallow water.

By combining the perturbation ray method with phase-sensitive kernel function in shallow water environments, the problem of difficult localization in shallow water environments by traditional perturbation ray methods has been solved, achieving higher resolution and stable underwater small target localization, reducing hardware costs and improving localization accuracy.

CN122307471APending Publication Date: 2026-06-30WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Filing Date
2026-04-30
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In shallow water environments, traditional perturbation ray methods have difficulty extracting perturbation rays and calculating intersection points, and multiple rays intersecting in one area lead to fuzzy localization results.

Method used

By combining phase-sensitive kernel function with perturbation ray method, multiple sets of ray data of target scene are acquired, perturbation ray data are filtered out, and sensitive kernel function is calculated using amplitude-sensitive kernel function or phase-sensitive kernel function to construct sensitive kernel function spatial positioning brightness map, and the point with the highest brightness is used as the estimated result of target position.

Benefits of technology

It improves the positioning resolution and stability of the perturbation acoustic method, achieving more accurate and reliable underwater small target positioning while maintaining low hardware configuration costs and intuitive positioning results.

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Abstract

This invention discloses a method, apparatus, electronic device, and storage medium for locating small underwater targets. The method includes acquiring multiple sets of acoustic data of a target scene, wherein the acoustic data includes at least acoustic amplitude; comparing the multiple sets of acoustic data of the target scene with preset acoustic data to filter out disturbed acoustic data affected by the target, wherein the preset acoustic data is acoustic data without a target; calculating a sensitive kernel function corresponding to each set of disturbed acoustic data using a preset amplitude-sensitive kernel function or phase-sensitive kernel function; and superimposing the calculated amplitude-sensitive kernel functions or phase-sensitive kernel functions to construct a spatial positioning brightness map of the sensitive kernel function. This invention uses a phase-sensitive kernel function combined with the disturbed acoustic method to locate small underwater targets, thereby improving the resolution and stability of the disturbed acoustic method.
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