无人潜航器舷侧阵远程目标被动定位方法  

Long-range target localization with passive flank array of unmanned underwater vehicle

作　　者：赵德鑫[1] 李婷[1] 黄芝平[1] 苏绍璟[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院,湖南长沙410073

出　　处：《中南大学学报（自然科学版）》2013年第S2期1-6,共6页Journal of Central South University:Science and Technology

基　　金：国家留学基金委资助项目(2011611091)

摘　　要：为提高无人潜航器舷侧阵在复杂浅海环境中远程目标被动定位的能力,提出一种基于合成孔径数据融合技术和匹配场处理技术的被动定位方法,并对该定位方法及其性能进行了理论分析与数值仿真。该方法通过数据融合处理合成虚拟的大孔径声呐,以提高无人潜航器舷侧阵的空间分辨率和阵增益,并利用海洋环境的复杂性以匹配处理的方式,在距离和深度上被动定位远程目标。仿真结果表明:该方法在无人潜航器低速巡航的情况下,实现了对浅海中远程静止目标的被动定位,并具有较高的精度。研究成果可为无人潜航器舷侧阵被动定位系统的设计提供理论研究基础和研究手段。In order to enhance the capability of long-range target localization with passive flank array of unmanned underwater vehicle(UUV) in complex shallow water,a method of passive localization based on data fusion of synthetic aperture technology and matched field processing was presented.The method involves spatial resolution improvement by synthesizing virtual long sonar array and target localization by exploiting complicated ocean environment.The algorithm and performance were studied by theoretical analysis and numerical simulation.Simulation results show that the good location performance for long-range immobile target is attained under the condition of low speed cruise.The research results provide theoretical foundation and research methods for passive localization system design of UUV flank array.

关 键 词：无人潜航器 舷侧阵 合成孔径 匹配场处理 被动定位 

分 类 号：U674.941[交通运输工程—船舶及航道工程]