TY - GEN
T1 - Research on calibration of fiber optic gyro units
AU - Zhao, Guiling
AU - Gao, Wei
AU - Zhang, Xin
AU - Tang, Lijun
PY - 2010
Y1 - 2010
N2 - 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 Earth's 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.
AB - 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 Earth's 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.
UR - https://www.scopus.com/pages/publications/79952171637
U2 - 10.1109/ISSCAA.2010.5633599
DO - 10.1109/ISSCAA.2010.5633599
M3 - 会议稿件
AN - SCOPUS:79952171637
SN - 9781424460441
T3 - ISSCAA2010 - 3rd International Symposium on Systems and Control in Aeronautics and Astronautics
SP - 809
EP - 814
BT - ISSCAA2010 - 3rd International Symposium on Systems and Control in Aeronautics and Astronautics
T2 - 3rd International Symposium on Systems and Control in Aeronautics and Astronautics, ISSCAA2010
Y2 - 8 June 2010 through 10 June 2010
ER -