视频自跟踪系统目标动态特性分析

Analysis of the Target's Dynamic Characteristic in Automatic Video Follow System

形状、尺寸、运动方向、旋转方向和光辐射强度等变化是航天测控视频自跟踪系统目标的重要动态特性。定义目标在视频自跟踪系统传感器平面中心坐标系中的目标运动方向和法线方向的两个方向数,把目标投影与目标运动弹道联系起来;并定义由A·和E·正交形成的传感器平面坐标系,把目标在视频自跟踪系统传感器平面上的运动方向与目标运动弹道联系起来,且给出了解析算法;用这些方法对飞行试验实际数据进行了仿真模拟和初步分析。

Shape, dimension, moving direction, rotating direction and light radiation intensity are important dynamic characteristics of the object in space telemetry and telecontrol video auto-tracking system.In the paper two directions coefficient of the object in video auto-tracking system'*s converter plane coordinate were defined:the object moving direction coefficient and the lineal direction coefficient,it combines the object projection with the object moving trail;and a converter plane coordinate formed by the orthogonal A· and E· was defined;it combines the moving direction in which the object moves on the video auto-tracking system's converter plane. An analytic algorithm is presented in the paper, and based on which flying trail data is simulated and analyzed primarily.