站间基线不等时三站时差定位的误差特性

在按时差方程和平面几何关系得到的三站时差测距和测向解析解的基础上,基于误差理论分析了一维直线阵列在站间基线长度不相等时的测距和测向误差特性。由此发现,对于目标的测距测量,不等距布站具有降低测量误差的作用。

Error Characteristics of Tri-Stations TDOA Location for Unequal Interstation Base Line

On the basic of obtaining the analytic solution for tri-stations TDOA ranging and direction finding which according to the time difference equation and plane geometry relationship, the ranging and direction finding error characteristics for one-dimensional linear array are analyzed based on error theory when interstation base length is unequal spaced. So it is found that unequal spacing array has the function of reducing the measuring error.