Underwater target detection and identification method, system and device and readable storage medium

Abstract

The invention discloses an underwater target detection and identification method, system and device, and a readable storage medium, and aims to realize current and electricity information composite detection by fusing a flow field pressure signal generated by a dynamic target and electric field distortion, and solve the problems of incomplete information representation and detection blind area influenced by environmental interference in the existing underwater sound detection method. The method can be used as an effective supplementary technology for underwater non-acoustic detection, fusion of single flow / electric field information is realized based on a Neyman-Pearson rule, an optimal flow / electric signal is selected as a basis for heterogeneous fusion under the condition that the detection probability of an isomorphic detection system is optimal, the reliability of the single-field information is improved, data fusion of BPNN, GRNN and GRNN is realized based on a D-S evidence theory, the system prediction error is minimized, then fusion of flow / electricity information is realized, and underwater target detection with more comprehensive information representation, more stable system performance and more accurate identification capability is formed.

Description

technical field [0001] The invention belongs to the field of underwater target detection, and in particular relates to an underwater target detection and identification method, system, equipment and readable storage medium. Background technique [0002] Underwater high-sensitivity, high-precision, large-range, and high-intelligence target detection is the key technology of modern marine equipment systems, and its effectiveness determines the combat performance and efficiency of marine equipment. Due to the characteristics of seawater itself, such as rapid attenuation of electromagnetic waves and extremely low light penetration, underwater targets are extremely concealed. In order to improve the "stealth" performance of underwater equipment, countries around the world continue to invest a lot of scientific and technological research and development forces in research, which has continuously strengthened the concealment of underwater targets. Therefore, if the effective infor...

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Problems solved by technology

[0003] However, the acoustic detection method currently mainly used in the field of underwater detection is often affected by the complex ocean environment and swarm combat situation (including the multi-path effect caused by interface reflection and the sound wave propagation characteristics are seriously affected by hydrological conditions, and the radiation noise of close-range swarm equipment Interference factors such as high intensity and target intensity) make it impossible to accurately perceive the surrounding environment and targets in the actual use of marine combat equipment systems, which has become a technical bottleneck restricting the development of a new generation of marine combat equipment

In addition, due to the complex and changeable characteristics of the underwater environment, the traditional detection method using a single physical field information to obtain information is not comprehensive and not suitable for complex marine environments, it is difficult to represent the real enemy's security situation, and even false alarms or false alarms of the target may occur. Missed detection leads to misjudgment of the battlefield situation

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