北京航空航天大学学报 ›› 2012, Vol. ›› Issue (4): 478-481,486.

• 论文 • 上一篇    下一篇

三轴一体光纤陀螺高精度标定方法

张小跃, 杨功流, 张春熹   

  1. 北京航空航天大学 仪器科学与光电工程学院, 北京 100191
  • 收稿日期:2011-12-28 出版日期:2012-04-30 发布日期:2012-04-28

High precision calibration method for three-cluster FOG

Zhang Xiaoyue, Yang Gongliu, Zhang Chunxi   

  1. School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2011-12-28 Online:2012-04-30 Published:2012-04-28

摘要: 针对三轴一体光纤陀螺,定义了标定转换模型,理论上分析了标定过程中各项参数之间相互影响以及地球转速影响导致标定精度较低的问题.针对零偏、标度因数和安装误差角提出一种各项分离测试的高精度标定方法,并将此方法实际应用于某三轴一体高精度光纤陀螺捷联系统,得到了陀螺标定结果.对标定结果进行了误差检验测试以及应用标定结果后进行了系统静、动态测试.测试结果表明:经过标定过程后陀螺精度以及系统测试结果均达到了预期性能要求,验证了标定方法的正确性和实用性.

Abstract: For three-cluster fiber optic gyro(FOG), calibration model was defined. The calibration error induced by earth rotation and interference among various parameters was analyzed theoretically. A high precision calibration method was presented, in which every parameter was tested separately, including bias, scale factor and misalignment. The calibration method was applied in a three-cluster FOG strapdown inertial navigation system(SINS), and the calibration result was given out. Error test for calibration result and SINS static test, dynamic test was carried out. The test results show that expected precision both of FOG and system performance have been achieved, the availability and utility of the calibration method are validated.

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