三点等间隔线列阵被动定位系统的精度分析

Accuracy Analysis of Three-Point Isometric Array Target Positioning

提出了一种基于三点等间隔线阵被动定位的新方法,给出了基于时延估计误差的三点等间隔线列阵的距离和高低角估计量的精度公式,分析了基线长和时延估计对目标距离和角度估计性能的影响,并针对系统具体应用条件进行了仿真分析。其结果表明:当基线可以取足够长时,三点测距系统定位精度较高,该系统在水下被动定位与跟踪技术领域,具有较好的应用前景。

A new passive location application based on three-point isometric linear array is presented in this paper. Influences of baseline length and estimated time delay on estimated target distance and angle are analyzed. Simulation results demonstrate that location accuracy of three-point ranging is higher when the longer baseline is taken, which has prospect of application.