水中高速小目标被动检测模型及其应用  

Passive Detection Model for Underwater High-speed Small Targets with Application

作　　者：胡桥[1,2] 郝保安[1,2] 易红[2] 杨云川[1,2] 

机构地区：[1]水下信息与控制重点实验室,陕西西安710075 [2]中国船舶重工集团公司第705研究所,陕西西安710075

出　　处：《鱼雷技术》2012年第4期261-266,共6页Torpedo Technology

基　　金：陕西省科学技术研究发展计划(2010KJXX-09)

摘　　要：针对水中高速小目标难以准确检测的问题,结合3D超波束形成(3D-HBF)方法具有灵活控制窄波束和低旁瓣的特性,以及模糊支持向量数据描述(FSVDD)检测器具有优良的目标检测性能这两者的优势,构建了水中高速小目标被动检测模型和具体实施方法。在该方法中,高速小目标的辐射噪声信号经过3D-HBF后,将获得的波束响应输出向量输入到FSVDD检测器中,从而实现目标的自动检测和测向。将该方法应用于水下高速小目标检测的实航试验中,结果表明,同基于常规波束形成的检测器相比,其具有更好的检测性能、目标检测准确率和较高的方位估计精度。For accurately detecting underwater high-speed small targets, a novel passive detection model is proposed based on the three-dimensional hyper beam forming （3D-HBF）method with flexible control of beam width and side lobe, and the fuzzy support vector data description （FSVDD） detector with excellent target detection capability. And its im- plementation method is also discussed. In the scheme, 3D-HBF is carried out to obtain the beam response vectors （BSV） from original underwater acoustic signals, and then the BSV are input to the FSVDD detector to detect and orient the underwater targets intelligently. The application of the proposed model to target detection of underwater high-speed small targets in sea trial demonstrates its better detection performance and higher detection success rate and localization accuracy, compared with the conventional beam forming based detection method.

关 键 词：水中高速小目标 被动检测 超波束形成 支持向量数据描述 

分 类 号：TJ630.34[兵器科学与技术—武器系统与运用工程] TN911.7[电子电信—通信与信息系统]