Research on Calibration of Fiber Optic Gyro Units

摘要：

In order to satisfy the calibration precision of fiber optic gyro units used in the strap-down inertial navigation system, this paper proposes a combination calibration method. First, according to the characteristics of high precision turntable positioning, a static discrete calibration is proposed. It makes use of the Earths rotational speed and a special calibration path to calibrate the fiber optic gyro s scale factor, installation error and zero drift and so on 12 error parameters. Then the systematic calibration revises the results of static discrete calibration. Under the static base, the systematic calibration makes the speed error and the misalignment angle as the observable and uses the kalman filtering techniques to estimate the discrete calibration errors and amends it. Simulation results show that the combination calibration method can greatly improve the calibration precision of fiber optic gyro units.

作者: Guiling Zhao Wei Gao Xin Zhang Lijun Tang

作者单位: College of Automation,Harbin Engineering University,Harbin 150001,China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Systems and Control in Aeronautics and Astronautics(第三届航空航天系统与控制国际会议 ISSCAA 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 817-822

在线出版日期: 2010-01-08（万方平台首次上网日期，不代表论文的发表时间）