光电侦察装备中的反射镜稳定技术

Mirror stabilization in electro-optical reconnaissance system

反射镜稳定技术通过控制光学通道中反射镜的姿态以实现视轴惯性稳定,广泛应用于飞机、舰船和车辆等载体上的光电侦察装备中。为了进一步提高反射镜的稳定性能,综合介绍了国内外反射镜稳定的结构形式和应用特点,通过运动学分析描述了反射镜光路特性和基于半角机构的反射镜稳定原理,着重分析了几种捷联式反射镜视轴稳定的系统配置方式与伺服控制机理。讨论了影响反射镜稳定性能的关键因素,为工程进一步应用提供参考。

Inertial stabilization of line of sight（LOS） achieved by controlling the motion of a mirror in the optical path is used widely in various electro-optical reconnaissance systems on aircrafts,ships and ground vehicles.To improve the mirror stabilization performance,the system configurations and applications of the stabilized mirror systems are introduced.The optical path of the mirror and the system stabilization concept with half angle mechanism based on kinematics are described.The configurations and servo control techniques of several strap-down mirror systems are given.The key factors influencing the mirror stabilization are discussed for further engineering developments.