一种基于弹道的时间配准算法

One Time Registration Algorithm Based on Trajectory

时间配准是分布式多传感器融合处理的前提之一,配准误差直接影响后续融合精度。常用时间配准算法通过直线或近似曲线的拟合完成目标的配准,对空中目标通常能够取得较高的配准精度。但对于速度较快、轨道固定的弹道目标则误差较大,难以保证配准精度。因此提出基于弹道的时间配准算法,估计目标当前位置和速度后计算目标的轨道并进行时间配准。通过仿真可以发现,与其它算法相比,本文所提出的算法能够明显地降低弹道目标的时间配准误差。

The time registration of is one of the premises in multi-sensor distributed fusion, and the regis- tration error will directly affect the accuracy of subsequent fusion work. Familiar time registration algo- rithms complete time registration of target by linear or curve fitting, usually get high accuracy on air tar- gets. However, the registration precision couldnt be ensured for ballistic target with high speed and des- ignated orbit. In this paper, we proposed a new time registration algorithm based on trajectory, which completes time registration by obtaining target orbit using estimated position and speed. The simulation results show that the proposed algorithm can decrease the time registration error effectively for ballistic tar- get when compare with other traditional methods.