A High-Accuracy Calibration Method of Optical Gyro SINS
In this paper, the calibration method of optical gyro strapdown inertial navigation system (SINS) is studied in theory. An inertial sensor error parameters calibration model based on the navigation errors is established, and the relationships between navigation errors and inertial sensor error parameters are analyzed. On the basis of this, a high-accuracy calibration method of optical gyro SINS is proposed. Considering all kinds of factors, this method designs a sequence of reasonable calibration scheme in order to excite all error parameters. Thus, all error parameters can be estimated using velocity information of the system. The theoretical analysis and experiments results show that the new method can calibrate all error parameters with a high degree of accuracy using a simple low-cost and low-accuracy equipment, so is more suitable for practical application.
Bo Xie Yongyuan Qin Yanhui Wan
Department of Automatic Control,Northwestern Polytechnical University,Xian 710072,Shaanxi Province, 16th Institute,China Aerospace Science and Technology Corporation,Xian 710100,Shaanxi Province,Chin
国际会议
哈尔滨
英文
488-492
2010-01-08(万方平台首次上网日期,不代表论文的发表时间)