面向不动产实地测量系统的光纤陀螺分段标定技术研究  

The Research on the FOG's Segmented Calibrating for the Real Estate Measure System

作　　者：冯家政[1] 吴峻[1] 蒋晨瑶 

机构地区：[1]东南大学仪器科学与工程学院,江苏南京210096

出　　处：《仪表技术》2016年第8期1-3,6,共4页Instrumentation Technology

基　　金：国土资源部公益性行业科研专项(201411012-02)

摘　　要：为解决不动产测量问题,针对光纤陀螺标定方案对捷联惯性测量解算的影响,对光纤陀螺分段标定的技术方案进行描述,给出标定具体数学模型,介绍了如何选取最佳标定点,解决了如何处理分段点不连续的问题。最后进行实测数据处理,给出不同标定方案下姿态误差分析,结果显示:分段标定可较大程度减小光纤陀螺标度因数非线性度,能够减小标度因数误差对导航精度的影响,分段标定方案切实可行。To solve the problem of measuring real estate, a method of segmented calibration for the fiber-optic gyro was described according to the effects of various calibration techniques on the ultimate strap down inertial navigation cal- culation. The specific mathematical model as well as the approach of selecting the best angular rate points to reduce er- rors is introduced. The problem of turning the discontinuous model into continuous one was solved. Real-experimental data sets are processed. Navigation errors were analyzed by using different calibration methods. It shows that the seg- mented calibration could greatly diminish the nonlinearity of the scale factor and improve navigation precision. It is con- cluded that the technical method in this paper is practical and feasible. Key words：

关 键 词：光纤陀螺 分段标定 非线性度 

分 类 号：V249[航空宇航科学与技术—飞行器设计]