作为体积目标的舰船辐射噪声建模

Modelling of Ship⁃radiated Noise as Volume Targets

摘要:

舰船辐射噪声是由舰船上机械运转和舰船运动产生并辐射到水中的噪声，是水下目标探测系统对运动舰船进行探测、识别的基础，亦是扫雷装备需重构的重要物理场信息，具有重要的理论和应用价值。 基于舰船辐射噪声的来源和时频空域特点，将作为体积目标的舰船辐射噪声源简化为 3 个主要噪声辐射源，建立了“三亮点” 的体积目标辐射噪声模型，在保留目标主要特征的基础上，简化了重构算法的复杂性，提高了模型的实用性，可以为实验室目标探测、识别研究和扫雷装备提供较为逼真的目标数据来源。

Abstract:

The ship?radiated noise is generated by the mechanical operation and the motion of the ship， and it radiates in the water， which is the basis of underwater target detection system for the detection and identification of moving ships． The ship?radiated noise is also the important physical field information of minesweeping equipment’s reconstruction， so it has great theoretical and practical value． Based on the source of the ship?radiated noise and the characteristics of the time?frequency airspace， the volume target ships?radiated noise source is simplified as 3 main noise sources， and establishes “three bright spots” volume target radiated noise model． On the basis of retaining the main features of the target， the complexity of the reconstruction algorithm is simplified， and the practicality of the model is improved． This model can provide a more realistic data source for laboratory target detection， identification research and minesweeping equipment．