基于三轴光电跟踪系统的目标捕获方法

Method of target acquisition based on three-axis photoelectric tracking system

针对三轴光电跟踪系统各轴上分解空间目标的速度优于两轴,但缺乏相关捕获策略研究,建立了一种扫描捕获方法。从引起不确定区域的误差源出发,分析了不确定区域(FoU)的大小、形状以及目标在该区域内的概率分布类型。在设定的捕获条件下,根据不确定区域的特性,选用螺旋扫描捕获的方式捕获目标,并将扫描方法分配到三轴上。由仿真结果可知:在服从二维高斯分布的圆形不确定区域内,基于三轴光电跟踪系统的螺旋扫描能短时间、高概率地捕获目标。

Aiming at the speed of decomposing the space target on each axis of three-axis photoelectric tracking system is better than of two-axis,but the lack of relevant acquisition strategy is studied,and a scanning acquisition method is established. Based on the error sources that cause the field of uncertain( FoU),the size and shape of the Fo U and probability distribution type of the target in this field are analyzed. Under the given capture conditions,according to the characteristics of the Fo U,the method of spiral scanning acquisition is used for target acquisition,and the scanning method is assigned to the three axis. The simulation results show that the spiral scanning based on the three-axis photoelectric tracking system can capture the target in a short time and high probability in the circular Fo U which obeys the two-dimensional Gauss distribution.