一种改进的多站时差定位算法

An Improved Multiple-observer DTOA Location Algorithm

针对传统多站时差定位方法的不足,提出了一种改进的多站时差定位算法,该方法基于时差测量信息,首先采用最小二乘法或Chan方法解算获得辐射源的粗略位置,并以此值为初始值,设定一个误差门限,采用迭代算法对辐射源的位置进行迭代优化,最终得到辐射源的精确定位结果,仿真结果表明了本文算法的有效性。

Aimed at the shortcomings of the traditional TDOA methods, an improved algorithm is pro- posed. The method is based on time difference measuring information, firstly SWLS or Chan calculation method are used to get the coarse location of radiation source. It takes the value as an initial value, sets an error threshold, and uses the iterative algorithm to iterative and optimize the location of radiation source, finally the accurate location result of the radiation source is got. The simulation result shows the effectiveness of the algorithm.