激光陀螺温度误差补偿方法研究  

Laser Gyro Error Compensation Method for Temperature

作　　者：闫钧宣[1] 张科[1] 

机构地区：[1]西北工业大学航天学院,陕西西安710072

出　　处：《计算机测量与控制》2011年第6期1452-1454,1468,共4页Computer Measurement &Control

基　　金：航空支撑基金资助(05C5305)

摘　　要：激光陀螺是捷联惯导系统的理想元件,并广泛应用于航空、航天、航海以及地面定位定向等方面;但是,激光陀螺对温度十分敏感,温度的变化会造成激光陀螺零偏的变化,最终影响捷联系统的初始对准和导航精度;所以当要求激光陀螺工作在高精度的场合时,必须采取必要的温度误差补偿措施;通过对激光陀螺进行大量的温度试验,分析了温度及温变速率对激光陀螺零偏的影响规律,提出了激光陀螺温度补偿模型;经试验验证,此模型能在一定程度上改善温度对激光陀螺精度的影响,为进一步提高激光陀螺的精度打下基础。Laser gyro strapdown inertial navigation system is the ideal components, and is widely used in aviation, aerospace, marine and ground positioning orientation and so on. However, the laser gyro is very sensitive to temperature, the temperature will cause Changes in la- set gyro, the ultimate impact of SINS initial alignment and navigation accuracy. So when the work required in high precision laser gyro occa- sion, we must take the necessary temperature error compensation. Based on the laser gyro, a large number of temperature test, analysis of the temperature and the temperature change rate on the laser gyro of the law, proposed model of laser gyro temperature compensation. The experimental results show that this model can to some extent improve the temperature accuracy of the laser gyro, in order to further improve the precision of laser gyro.

关 键 词：激光陀螺 温度补偿 陀螺零偏 多元线性回归 

分 类 号：V666.11[航空宇航科学技术]