摘要
机载战术武器发射时,常采用动基座对准技术进行初始对准,机翼的挠曲变形是影响对准性能的重要因素。基于机翼的悬臂梁振动模型,将其简化为一个二阶随机过程模型,并将该随机过程模型扩充为滤波器状态量进行估计。对比传统高维滤波器,合理减少滤波状态量,简化了高维滤波器。仿真结果表明,该随机过程模型能够很好地补偿机翼动态变形对滤波器性能的影响,滤波器也可以对动态变形角进行很好的估计和跟踪,可以用来补偿机翼挠曲效应;在不影响对准精度的条件下,简化后的滤波器计算量小,比高维滤波器更适合应用于工程实现。
The dynamic base alignment technique is often used for initial alignment when airborne tactical weapons are launched.The deflection of wing is an important factor affecting the alignment performance.In this paper,a cantilever beam vibration model of the wing is simplified as a second-order stochastic process model,and the stochastic process model is expanded to the filter state quantity for estimation.Compared with the traditional high-dimensional filter,the filter state is reasonably reduced,and the high-dimensional filter is simplified.The simulation results show that the stochastic process model can well compensate the influence of the dynamic deformation of the wing on the performance of the filter.The filter can also estimate and track the dynamic deformation angle well,and can be used to compensate the wing deflection effect;under the condition that the alignment accuracy cannot be affected,the simplified filter has less calculation and is more suitable for engineering implementation than the high-dimensional filter.
作者
李云龙
宋振华
刘伟鹏
张进
冯辉
LI Yunlong;SONG Zhenhua;LIU Weipeng;ZHANG Jin;FENG Hui(Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China)
出处
《空天防御》
2020年第3期131-136,共6页
Air & Space Defense
关键词
传递对准
机翼柔性
悬臂梁振动
随机过程
transfer alignment
wing flexibility
cantilever beam vibration
stochastic process
作者简介
李云龙(1995-),男,硕士,主要研究方向为导航系统设计。E-mail:529763750@qq.com。
