空中目标辐射噪声水下传播特性及检测技术研究

项目名称： 空中目标辐射噪声水下传播特性及检测技术研究

项目编号： No.61271444

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 杨日杰

作者单位： 中国人民解放军海军航空工程学院

项目金额： 80万元

中文摘要： 空中目标辐射噪声通过空气-海水界面在海洋环境中传播时，可被一定深度的水声接收阵接收、检测，为实现水下对空中目标的探测、预警、定位、跟踪、对抗等提供了条件。本项目在已开展空中声源水下传播与检测技术、反潜直升机辐射噪声及其产生的水下声场技术等初步研究的基础上，将以实测数据为基础，通过理论分析、建模仿真、模型验证与模型修正相结合的方法，深入研究空中目标辐射噪声在水下传播的主要特征与变化规律、检测技术，为相关应用提供理论依据和技术基础。 主要研究内容：空中目标与水面目标、水下目标的辐射噪声在海洋环境传播过程中，其主要特征区别；空中目标辐射噪声在海洋深度方向、一定深度水平方向的主要特征分布及变化规律；空中目标辐射噪声特征的分类置前检测、融合检测、自适应高阶统计量检测等算法研究，检测效果比较、检测器设计；空中目标辐射噪声水下传播数据的采集，基于实测数据的相关模型、算法的验证与修正。

中文关键词： 空中目标；辐射噪声；传播特性；检测；

英文摘要： The Radiated noise of the air target can be received and detected by the underwater acoustic receiving array at a certain depth during its propagation from air to sea. This provides conditions for the detection, warning, tracking and confrontation of the air target from underwater. This project is based on a preliminary study of the existing technologies as propagation and detection of the sound source in air and the radiate noise of the anti-submarine helicopter and its underwater sound field. Based on the measured data, the project deeply researches on the main features, the change law and the detection technology of the radiated noise of the air target by means of the combination of theoretical analyses, modeling and simulation, model validation and modification. The project also provides a theoretical basis and a technical foundation for related applications. The main research contents: the main feature differences of the radiated noise of the air target, the surface target and the underwater target; the main characteristic distributions and the change law of the radiate noise of the air target in vertical direction and in level direction at a certain depth; the research on the algorithms as the classification pre-position detection, the fusion detection and the adaptive high-order statistics detection, on t

英文关键词： air targets；radiate noise；propagation characteristics；detect；