滚转弹两框架导引头的前馈补偿技术

doi:10.7527/S1000-6893.2016.0076

电子与控制

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滚转弹两框架导引头的前馈补偿技术

刘晓¹, 莫波¹, 刘福祥¹, 闫新颖²

1. 北京理工大学宇航学院, 北京 100081;
2. 北京航天自动控制研究所, 北京 100854

收稿日期:2015-12-02 修回日期:2016-03-11 出版日期:2016-12-15 发布日期:2016-03-15
通讯作者: 莫波,Tel.:010-68913657,E-mail:mobo@bit.edu.cn E-mail:mobo@bit.edu.cn
作者简介:刘晓,女,博士研究生。主要研究方向:飞行器制导与控制。Tel.:010-68913657,E-mail:liuxiaobit@163.com;莫波,男,博士,研究员,博士生导师。主要研究方向:飞行器控制,控制元件,检测技术。Tel.:010-68913657,E-mail:mobo@bit.edu.cn

Feed-forward compensation of two-axis gimbal seeker installed on roll missile

LIU Xiao¹, MO Bo¹, LIU Fuxiang¹, YAN Xinying²

1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China;
2. Beijing Aerospace Automatic Control Institute, Beijing 100854, China

Received:2015-12-02 Revised:2016-03-11 Online:2016-12-15 Published:2016-03-15

摘要/Abstract

摘要：

针对弹体滚转情况下两框架平台式导引头的伺服控制问题，基于导引头运动学和动力学，建立了导引头稳定回路模型。结合弹体滚转条件下的导引头输入指令和输出视线角速率关系，构建了视线闭环回路。针对偏航、俯仰通道间的解耦控制问题，推导出解耦条件，要求两通道由失调角到光轴转动角速度的传递函数相同。仿真分析了该模型在视线角输入以及弹体姿态扰动输入时，弹体滚转对导引头跟踪精度产生的影响，并由此提出了滚转角速度前馈补偿控制方案。结果表明，采用结合滚转角前馈补偿控制的两框架平台式导引头方案可以满足滚转弹的制导精度要求。

关键词: 导引头, 伺服机构, 弹体滚转速率, 跟踪精度, 前馈控制

Abstract:

To solve the decoupling control problem of two-axis gimbal seeker installed on the roll missile, the stabilized loop of seeker model is built based on the kinematics and dynamics of the two-axis gimbal. In order to get the closed loop line of sight, the input and output under the roll situation is derived. The decoupling condition is based on the assumption that the pitch and yaw channels have the same transfer function between measuring disturbance angle and optical axis rotation speed. The effect of body roll rate on the tracking accuracy of the seeker is discussed with line of sight angle input, as well as the effect of body roll rate on the disturbance rejection with body attitude disturbance input. A feed forward compensation control method is proposed to reduce the effect of body roll rate. Simulation result shows that the two-axis gimbal seeker with feed-forward compensation control can satisfy the tracking accuracy of the rolling missile.

Key words: seeker, servomechanism, body roll rate, tracking accuracy, feed-forward control

中图分类号:

刘晓, 莫波, 刘福祥, 闫新颖. 滚转弹两框架导引头的前馈补偿技术[J]. 航空学报, 2016, 37(12): 3764-3773.

LIU Xiao, MO Bo, LIU Fuxiang, YAN Xinying. Feed-forward compensation of two-axis gimbal seeker installed on roll missile[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(12): 3764-3773.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

滚转弹两框架导引头的前馈补偿技术

Feed-forward compensation of two-axis gimbal seeker installed on roll missile

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