摘要
针对基于插值法计算的解耦方法的反馈增益精度不高,以及采用非线性解耦算法需要的模型精度高,计算量大的问题,提出了基于前置反馈补偿的火箭靶弹解耦方法。该解耦方法在靶弹运动学和控制频域模型基础上,将开环传递函数矩阵分解为运动学耦合和控制耦合,通过引入一个预补偿器,使得运动和控制耦合的传递函数矩阵是对角占优的,便可以将补偿后的俯仰、偏航通道进行单独设计,进而实现靶弹姿态和过载解耦控制系统的设计。仿真结果表明,采用前置反馈补偿解耦方法有效解决了旋转靶弹俯仰和偏航通道之间的耦合效应,并且具有解耦器结构简单,动态响应性能好等优点。
For the decoupling method based on interpolation is not accurate,and the nonlinear decoupling algorithm requires high precision and large computational complexity,a decoupling method of target missiles based on pre-feedback compensation was proposed.Based on the dynamics of target missiles and control frequency domain model,the open-loop transfer function matrix is decomposed into kinematic coupling and control coupling.By introducing a pre-compensator,the diagonal of kinematic and control coupling's transfer function matrix was dominant,and then the compensated pitch and yaw channels could be separately designed to realize the design of the missiles attitude and overload decoupling control system.The simulation results showed that the pre-feedback compensation decoupling method effectively solved the coupling effect between the pitch and yaw channels of the rotating missiles,and had the advantages of simple decoupler structure,good dynamic response performance,etc.and also had certain guiding significance in engineering.
作者
刘伟
魏志芳
曹红松
LIU Wei;WEI Zhifang;CAO Hongsong(College of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,China;Chongqing Aerospace Electromechanical Design Institute,Chongqing 400039,China)
出处
《探测与控制学报》
CSCD
北大核心
2019年第2期81-85,共5页
Journal of Detection & Control
基金
国家国防科技工业局技术研究基础科研项目资助(A1020131011)
关键词
火箭靶弹
强耦合
前置反馈补偿
传递函数
target missiles
strong coupling
pre-feedback compensation
transfer function
