【作者】 鹿力成；

【Author】 LU Li-cheng (Institute of Acoustics,The Chinese Academy of Sciences,Beijing,10080

【机构】 中科院声学研究所；

【摘要】 垂直阵接收到时间上可区分的引导声源和目标声源的宽带信号,可以在引导声源处构建虚拟接收器接收目标声源信号,波导不变量β是一种描述宽带信号距离一频率干涉条纹的标量,结合到虚拟接收器中可构建一水平虚拟接收阵,从而对水平变化环境下目标声源进行距离定位,这种方法只需要知道海底地形变化,而时其他环境参数可不完全知的情况下,对目标声源进行距离定位,数值模拟和实验数据分析表明该方法可行,距离误差在5%左右。更多还原

【Abstract】 Time-separable broadband signals from guide a source and a target source received by a vertical array could be used to construct a virtual receiver,which seems to receive the target signal at the guide localization.Wave guide invariantβ is a single scalar parameter which describes the range-frequency interference of broadband signal,and can be used for constructing a horizontal virtual array combining with virtual receiver.Through this procedure,it is possible to locate the range of target under a range-dependent underwater environment.This method requires only the bathymetry varies,and can locate the range of target without other environment information.Results of numerical simulations and experimental data show the possibility of localizing a target and errors with actual location are about 5%更多还原