一种惯性导航与瞄准线稳定组合的陀螺平台设计

Design of Gyro Platform Used for Inertial Navigation and Line of Sight Stabilization

阐述了惯性导航平台与瞄准线稳定平台对稳定回路设计的不同要求。针对雷达/惯性中段制导、红外末段制导的需要,设计一种惯性导航与瞄准线稳定组合的三轴陀螺平台,惯性测量器件与红外探测器件均置于平台之上。平台选用速率陀螺反馈,通过极点配置的方法设计了一种PⅡ2加前置滤波器的校正形式,能够实现较大的平台进动速率和保证平台稳定角度无静差。获得了较好的动静态性能,实验验证同时满足了惯性导航系统与瞄准线稳定系统的性能要求。

The difference of stabilization loops between inertial navigation system and line of sight（LOS） stabilized system were proposed.With the application in a radar/inertial middle guided and infrared end guided missile,a three axis gyro platform used for inertial navigation and LOS stabilization was designed,on which inertia measuring unit infrared detector are mounled.A PⅡ2 controller with pre-filter was designed by rate gero feedback and pole placement to make the platform have larger precession rate and steady angle of zero static difference.The platform performance was verified by a real experiment.The verified results show that the platform can satisfy simultaneously the requirements of inertial navigation system and LOS stabilized one.