【作者】 郭乔鹤； 兰华林； 马鑫；

【Author】 GUO Qiao-he;LAN Hua-lin;MA Xin;Shenyang Liaohai Equipment Co.Ltd;College of Underwater Acoustic Engineering,Harbin Engineering University;

【机构】 沈阳辽海装备有限责任公司； 哈尔滨工程大学水声工程学院水声技术重点实验室；

【摘要】 基于双线阵的船辐射噪声信号被动检测方法展开研究。从空间双水听器接收信号的相关处理出发,提取了辐射噪声的频谱信息。在此基础上扩展到双水平直线阵,利用波束形成的空间滤波能力,对各基阵之间的波束进行相关处理,实现对多船目标的特征分离。仿真结果表明,将波束形成和空域相关结合起来,利用稳健波束形成技术对舰船辐射噪声进行预处理,能够有效提高船目标的识别能力。更多还原

【Abstract】 The passive detection method of radiated noise signals of dual-line array is studied.From the spatial coherent processing of dual-hydrophone receiver signals,the spectral information of radiation noise is extracted.On this basis,it is extended to a bi-level linear array.Using the spatial filtering capability of beamforming,the beam among each array is processed in correlation to obtain the detection results of the target and separate characteristics of multi-vessel targets.The results of simulation show that,combining beamforming with spatial correlation,robust beamforming technology is used to preprocess ship noise,can effectively improve the recognition ability of ship targets.更多还原