摘要
机载光电平台能够实时获取侦察测量信息,通过设计惯性稳定系统隔离载体运动以减小光学传感器视轴的抖动。对于采用整体稳定方式的光电平台,环架轴系间的摩擦是影响视轴稳定精度的主要扰动因素。考虑摩擦力矩由LuGre动态摩擦模型描述,针对动态摩擦参数和系统负载特性未知的情况,为惯性稳定回路设计了一种模型参考自适应摩擦补偿控制器。通过类李雅普诺夫分析证明了闭环系统跟踪误差的渐近收敛性。仿真结果显示,相比采用传统的比例积分惯性稳定控制器,光电平台系统的稳定精度得到显著提升。
An airborne electro-optical （E-O） platform is used to obtain real-time surveillance and measurement information, and an inertial stabilization system is designed to isolate the carrier motion so as to reduce the line-of-sight （ LOS ） jitter stabilization, the shaft friction torque of of the optical sensors. In an gimbals is the main disturbance LOS. Suppose that the friction torque is described parameters and unknown load characteristic, a model E-O platform system using mass against stabilization accuracy of the by the LuGre model, with unknown dynamic friction reference adaptive friction compensation is designed for the inertial stabilization loop. And asymptotic convergence of the proved through Lyapunov-like analysis. The simulation results tracking error of closed loop system is reveal a noteworthy improvement in stabilization accuracy of the LOS as compared with a conventional proportional integral controller.
出处
《电光与控制》
北大核心
2012年第4期50-54,共5页
Electronics Optics & Control
基金
国家自然科学基金(60874084)
关键词
光电平台
视轴稳定
摩擦补偿
模型参考自适应控制
electro-optical platform
line-of-sight stabilization
friction compensation
model reference adaptive control
作者简介
鲍文亮（1980-），男，江苏溧阳人，博士生，研究方向为惯性稳定平台的伺服控制理论与应用。
