非全姿态惯性平台小角度射前自标定方法  

Self-Calibration for the Non-Full Gesture Inertial Platform Before Launch Under Small Angle

作　　者：胡昌华[1] 郑建飞[1] 李进[1] 扈晓翔[1] 

机构地区：[1]第二炮兵工程学院,西安710025

出　　处：《宇航学报》2008年第1期192-196,共5页Journal of Astronautics

摘　　要：为实现非全姿态惯性平台全装弹状态下的射前自标定,提高导弹射击精度,提出了非全姿态惯性平台在小角度状态下射前自标定方法。通过对导弹飞行过程中平台的受力分析,确定了平台误差模型中产生漂移最主要的六项误差系数,设计了使平台转动到预设角度并自动锁定的控制电路,控制平台在初始和小角度倾斜两位置处锁定,使六项误差系数受到重力加速度的有效激励,最后利用构建的闭环力矩反馈回路进行测漂,分离出各误差系数。精度分析表明,标定精度能够很好地满足系统要求。与传统方法相比,该方案利用小角度倾斜状态实现三轴同时测漂,仅需平台在两个位置间转动一次,其自标定时间缩短为借助转台多位置标定时间的25%。To realize the self-calibration of the non-full gesture inertial platform,a new method calibrating the non-full gesture inertial platform under small angle is presented.Through analyzing the force acting the platform in the flight,the most important six error coefficients which form the drift of the platform were determined.The control circuits,which control the platform to rotate and lock at a setting angle automatically,were designed.The platform was rotated and locked at the initial position and certain ...

关 键 词：非全姿态惯性平台 误差模型 小角度自标定 力矩反馈法 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程]