基于高分辨率多波束声成像的核电站冷源海域水母探测研究

Research on Jellyfish Detection in Cold Source Sea Area of Nuclear Power Plant Based on High Resolution Multi-beam Acoustic Imaging

摘要:

为提升核电站冷源可靠性，需建立海生物识别、探测、预警及分级响应的纵深防御体系，其中探测预警为前端处置措施，为后续的分级响应提供准确而及时的海生物信息，同时可替代潜水员水下检查工作，降低工业安全风险。采用水下声学高分辨率多波束探测方法对水母等海生物进行探测，并获取其回声特性，分析了其在敏感海域的分布密度及体散射强度特性。研究结果表明，利用该高分辨多波束声学法探测核电站出水口海生物是有效的。

Abstract:

In order to improve the reliability of nuclear power plant cold source，it is necessary to establish a deep-depth defense system of marine organism identification，detection，early warning and graded response，in which detection and early warning are the front-end disposal measure，providing accurate and timely marine organism information for the follow-up graded response，replacing the underwater inspection of divers to reduce industrial safety risk. In this paper，the underwater acoustic high-resolution multi-beam detection method is used to detect jellyfish and other marine organisms，and their echo characteristics are obtained. Then the distribution density and body scattering intensity characteristics of jellyfish in sensitive sea areas are analyzed. The result shows that high-resolution multibeam acoustic method is effective in detecting marine organisms at the outlet of nuclear power plant.