利用辐射源信号到达多个平台的到达时差信号和到达频差信号对辐射源进行定位,建立定位模型并计算几何精度因子(GDOP)。基于三站定位的平均处理方法,计算出GDOP 的合理区间。仿真结果表明:在GDOP 的合理区间,三站定位精度明显优于双站定位精度。

The radiation source is located based on time difference of arrival and frequency difference of arrival. The passive location model is established and the geometric dilution of precision (GDOP) is calculated. The reasonable interval of GDOP is calculated based on the three stations average processing method. The simulation results show that the positioning accuracy of the three stations is better than that of the two stations in the reasonable range of GDOP.

TN957