高精度局域定向定位技术及其精度分析

High Precision Local Region Direction and Location Determining Technique and its Accuracy Analysis

针对目前自主局域定向定位的需求,文中提出了一种在近场模型下反向利用阵列信号处理相关理论实现阵列自身的高精度定向定位方法,仿真实验表明该方法可以有效实现阵列的高精度定向定位。进一步对该方法的定向定位精度进行了理论分析,通过仿真分析了阵列所处位置、信号源数目、阵列自身天线阵元数目以及信号源位置存在误差时对定向定位精度的影响,相关实验结论具有重要的工程应用指导意义。

Based on the requirement of independent local region direction and location determining,a method using the array signal processing principle opposite to estimation of the direction and the location of array in near field is proposed.Simulation demonstrated the effectiveness of this proposed method.Then the precision of direction and location determining is analyzed.According to the result of experiments,we analyzed the effect on the precision of direction and location determining by array position,the number of signal,the number of array antennas and the error of signal position.The conclusion of experiments provided important instruction for engineering application.