研究了收发分置声纳浅海近程混响的建模与仿真,模型主要基于单元散射理论,依据散射系数相关半径来划分海面、海底散射单元,通过模拟海面、海底混响形成的物理过程建立单接收与多接收模型。模型中考虑声纳设备参数(指向性、收发位置、发射信号)及环境因素(海面运动、海底粗糙程度)对混响建模的影响。设计程序实现浅海近程单接收与多接收混响信号模型并仿真计算出混响时间序列,提供GUI(Graphical User Interface)用户图形界面支持。对建模仿真的混响信号进行统计分析,验证了论文建立的浅海混响信号模型的正确性。
A best linear unbiased estimation(BLUE)algorithm for bistatic sonar localization is proposed.The Cramer-Rao bound for bistatic sonar and the geometrical dilution of precision(GDOP)in different conditions are given.The simulation results show that the location accuracy of BLUE algorithm is higher than the weighted least square method.
