光纤陀螺惯性平台的稳定回路控制  

Stable Loop Control of FOG Inertial Platform

作　　者：徐白描 魏宗康[1] 彭迪 XU Bai-miao;WEI Zong-kang;PENG Di(Beijing Institute of Aerospace Control Devices,Beijing 100039)

机构地区：[1]北京航天控制仪器研究所,北京100039

出　　处：《导航与控制》2021年第2期47-53,共7页Navigation and Control

摘　　要：为了延长惯性平台使用寿命并提高其稳定精度,以光纤陀螺作为惯性平台的敏感元件,建立了平台系统稳定回路的数学模型。针对平台系统的性能指标要求,基于H∞控制理论设计稳定回路控制器。仿真结果表明,该稳定回路具有较好的动态和稳态性能,可以满足系统的设计要求。同时,试验验证了该光纤陀螺惯性平台的系统性能,利用Allan方差法对光纤陀螺进行噪声信号分析,对陀螺各项噪声系数进行标定。结果表明,量化噪声是该光纤陀螺的主要噪声源。In order to extend the service life and improve the stability accuracy of the inertial platform, the fiber optic gyroscope(FOG) as the sensitive element of the inertial platform is used in this paper, the mathematical model of the stable loop of the platform system is established. According to the performance requirements of the platform system, a stable loop controller is designed based on H∞ control theory. Simulation results show that the stable loop has good dynamic and steady-state performance, which can meet the design requirements of the system. At the same time, the system performance of the FOG inertial platform is verified by experiment. The noise signal of the FOG is analyzed by using Allan variance method, and the noise coefficients of the gyroscope are calibrated. The results show that quantization noise is the main noise source of the FOG.

关 键 词：光纤陀螺 稳定回路 H∞控制 噪声分析 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]