运动单站对运动目标的快速高精度测向定位研究

Fast and Accurate DF Location of the Single Moving Station to a Moving Object

现有的单站定位算法大都是运动单站对固定目标辐射源或者固定单站对运动目标辐射源的定位,而运动单站对远距离的运动目标很难实现快速高精度的定位。针对平面直角导航坐标系下,运动单站对运动目标的高精度定位综合算法问题,分析了目标的可观测性,给出了不可观测原因,提出了基于多项式拟合的最小二乘定位算法,通过多次仿真实验发现,此算法得到的定位结果可以达到Cramer-Rao下界,说明算法是有效的。结论是侦察机在一定的机动条件下,可以实现对远距离目标的快速高精度定位。

The traditional methods of location are mainly for the single moving station to the fixed objection or the fixed station to the moving objection.However,it is very difficult to achieve a fast and accurate location of moving station to the moving objection.A high precision location algorithm is provided based on the least square multiple（LSM） multinomial fitting method.Meanwhile,the reason why the azimuth measured by a single station moving at a fixed speed could not calculate the position of target is explored.And the result is close to the CRLB by many times experiments.It suggests that it is effective which could realize a fast accurate location of single moving station to the moving objection on the condition of maneuverability.