半球谐振陀螺阻尼不均匀误差补偿方法  

Damping Mismatch Compensation Methods for Hemispherical Resonator Gyroscope

作　　者：郭杰 曲天良 张晶泊[1] GUO Jie;QU Tianliang;ZHANG Jingbo(School of Information Science and Technology,Dalian Maritime University,Dalian 116026)

机构地区：[1]大连海事大学信息科学技术学院,大连116026

出　　处：《飞控与探测》2021年第1期73-80,共8页Flight Control & Detection

基　　金：国家自然科学基金项目(62073055)。

摘　　要：半球谐振陀螺是利用哥氏效应测量角速度的新型固态陀螺,在全角模式下具有噪声低、带宽高和动态范围大的特点,并且可以直接用于读取角度信号,拥有良好的应用前景。针对全角模式下的主要误差来源——阻尼不均匀项,在二维谐振子振动模型的基础上,简要介绍了Lynch平均法,并结合驻波进动方程,重点梳理了“四力控制”法、方位角自适应补偿法和“虚拟旋转”法等误差补偿方法,并对各补偿方法进行了总结,最后对半球谐振陀螺误差补偿技术的发展趋势进行了展望。Hemispherical resonator gyroscope(HRG)is a novel kind of solid-state gyroscope that measures angular velocity through the Coriolis effect.In the whole-angle mode,it has advantages of low noise,high bandwidth and large dynamic range,and can directly measure the angle signal,which has a good prospect for application.Aiming at the damping mismatch that is the main source of measurement errors in the whole-angle mode,based on the two-dimensional harmonic oscillator vibration model,Lynch average method is firstly introduced,and then the"four-force control"method,azimuth angle adaptive compensation method and virtual-rotation method are analyzed and summarized based on the dynamic equation.Finally,the future trends of error compensation methods for HRG are discussed.

关 键 词：半球谐振陀螺 全角模式 阻尼不均匀 误差补偿 方位角 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计]