横滚隔离激光捷联惯导系统稳定回路自抗扰控制  

Active Disturbance Rejection Control of the Stabilizing Loop for Roll-Isolated Laser Gyro Strap-Down Inertial Navigation System

作　　者：周琪[1] 秦永元[1] 杨鹏翔[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072

出　　处：《测控技术》2009年第11期95-98,100,共5页Measurement & Control Technology

摘　　要：针对自旋飞行器高速自旋的特点,介绍了一种具有横滚隔离功能的捷联惯导系统,着重研究了横滚隔离激光捷联惯导系统稳定回路的自抗扰控制问题。通过对横滚隔离激光陀螺单轴稳定平台状态空间模型的分析,利用自抗扰控制思想,建立了二阶离散自抗扰控制算法。引入Stribeck模型模拟稳定回路的摩擦力矩,仿真分析表明,自抗扰控制的稳定回路可有效抑制干扰、跟踪指令角速度,具有精度高、收敛快、鲁棒性强等特点。该控制算法具有一定的工程实用价值。To investigate active disturbance rejection control （ADRC） of the stabilizing loop for roll-isolated laser gyro strap-down inertial navigation system （RLGSINS） which is available to spinning vehicles, the approach called ADRC is adopted extensively. First, the state space model of the stabilizing loop is analyzed, then sec- ond-order discrete algorithm of the ADRC is established. The Stribeck friction model is presented in the emulator. The simulation results show that the system can eliminate disturbance effectively and follow the reference angle velocity precisely. The ADRC has the advantages of high accuracy, rapid convergence, good robustness etc. Thus, it is an excellent method for RLGSINS stabilizing loon.

关 键 词：自旋飞行器 横滚隔离 激光陀螺 稳定回路 Stribeck摩擦模型 自抗扰控制 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]