机载光电观瞄系统的瞄准线指向线性运动补偿方法

发布时间：2018-08-27 07:22

【摘要】：为方便操作员快速捕捉并瞄准目标,提出一种适用于机载光电观瞄系统的线性运动补偿方法。该方法借助地面目标相对载机在初始‘东北天’坐标系下的速度矢量进行分解,得出目标相对光电系统在惯性坐标下的角速度,并根据解算出的角速度值实时进行伺服补偿,驱动光电转塔于手动模式下,当操作员不操控光电转塔时,系统的瞄准线能够自动地指向地面目标区域。该方法已在某型无人机用光电观瞄系统挂飞试验中进行了验证,结果表明:在电视观瞄具的小视场(0.7°×0.5°)下,地面目标点、瞄准线指向点相对载机点的张角在方位和俯仰方向均小于该视场的1/6。
[Abstract]:In order to facilitate the operator to catch and aim at the target quickly, a linear motion compensation method for airborne optoelectronic sighting system is proposed. The method decomposes the velocity vector of the ground target relative to the carrier in the initial 'northeast sky' coordinate system, and obtains the angular velocity of the target relative to the photoelectric system in the inertial coordinate, and carries on the servo compensation according to the calculated angular velocity value in real time. When the operator does not control the photoelectric turret, the sight line of the system can automatically point to the target area of the ground. The method has been verified in the flying test of a certain UAV with photoelectric observation system. The results show that the ground target point is obtained at the small field of view (0.7 掳脳 0.5 掳) of the TV viewing device. The opening angle of the pointing point of the line of sight relative to the point of load is less than 1 / 6 of that of the field of view in the azimuth and pitching direction.
【作者单位】：西安应用光学研究所;
【分类号】：TH745.4

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