水声目标辐射噪声仿真  

Radiated Noise Simulation of Underwater Acoustic Target

作　　者：周烨 陈炜浩[2] 杨成伟 ZHOU Ye;CHEN Weihao;YANG Chengwei(College of Aviation Operations,Naval Aeronautical University,Yantai 264000,Shandong,China;The 28th Research Institute of China Electronics Technology Group Corporation,Nanjing 210007,China;Suzhou Soundtech Oceanic Instrument Ltd.,Suzhou 215000,Jiangsu,China)

机构地区：[1]海军航空大学航空作战勤务学院,山东烟台264000 [2]中国电子科技集团公司第二十八研究所,南京210007 [3]苏州桑泰海洋仪器研发有限责任公司,江苏苏州215000

出　　处：《指挥信息系统与技术》2020年第2期70-73,79,共5页Command Information System and Technology

基　　金：国家自然科学基金(61271444)资助项目。

摘　　要：针对水声目标辐射噪声仿真中对机械噪声仿真过程中的模拟度不高的问题,分析了相关噪声源辐射机理,提取了不同航行状态下的特征频率用于线谱模拟;计算了相应的辐射噪声谱,通过构造特定幅频响应滤波器仿真连续谱信号。实测数据对比表明,利用噪声产生机理构造的仿真信号比采用传统方法构造的仿真信号具备更好的逼真度,可用于水声对抗装备研制以及目标识别算法检验。Aiming at the problem of low degree of simulation in the process of mechanical noise simulation in the underwater acoustic target radiation noise simulation,the radiation mechanism of related noise sources is analyzed,and the characteristic frequencies under different navigation conditions are extracted for line spectrum simulation.The corresponding spectrum of radiated noises is calculated and the continuous spectrum signal is simulated by constructing a specific amplitude-frequency response filter.The comparison with the measured data shows that the simulation signal constructed by the mechanism of the noise generation has better fidelity than that constructed by the traditional method,providing an effective reference for the development of underwater acoustic countermeasures equipment and the verification of target recognition algorithm.

关 键 词：辐射噪声 机械噪声 特征频率 

分 类 号：TN911.72[电子电信—通信与信息系统]