拖曳声呐流噪声场模型研究  

Research on Towed Sound Turbulence Noise Field Model

作　　者：李劲松 张浩 林聪仁[2] 宋睿平 

机构地区：[1]深圳市朗石科学仪器有限公司,广东深圳 [2]厦门大学信息科学与技术学院,水声通信与海洋信息技术教育部重点实验室,福建厦门

出　　处：《声学与振动》2019年第3期92-103,共12页Open Journal of Acoustics and Vibration

基　　金：深圳市科技计划项资助。JSGG20170414090428464。国家自然科学基金:61671394.

摘　　要：随着拖曳声呐水听器在海洋探测和水下航行器上的广泛应用,水听器换能效率的性能要求日益增加,而流噪声对其影响巨大,限制了其定位侦查能力。本文主要采用波数–频率谱分析方法,给出了拖曳线列阵内部噪声场的功率谱表达式和时–空相关函数,并使用数值计算方法将已有的几种模型进行比较,综合流噪声Carpenter模型进行仿真,改进和参数修正,得到了有效的抑噪措施,并通过实测数据验证了流噪声模型的有效性。With the widespread application of towed hydrophones on marine detection and underwater vehicles,the performance requirements of hydrophone translating efficiency are increasing,and the influence of flow noise is huge,which limits its positioning detection capability.In this paper,the wave-frequency spectrum analysis method is used to give the power spectrum expression and time-space correlation function of the internal noise field of the towed line array,and the existing models are compared by numerical calculation method.The Carpenter model is simulated,improved and parameter modified,and effective noise suppression measures are obtained.The effectiveness of the flow noise model is verified by measured data.

关 键 词：流噪声功率谱 水听器 拖曳线列阵 Carpenter模型 

分 类 号：TB5[理学—物理]