Abstract
With the development of fiber-optic gyroscopes, strapdown inertial navigation system has become a trend in the development of inertial navigation system (INS), and strapdown inertial system error calibration technique has become one of the key technologies. This paper combined engineering practice with study an on-line calibration method of INS, which based on the high-precision multi-functional three-axis turntable. First of all, aim at the actual system used in fiber-optic gyroscopes, accelerometers quartz flexible components, set up corresponding system error model respectively. Then, take the high-precision three-axis turntable as platform to design the calibrate path, through the on-line combination calibration .Use Kalman filter algorithm to process data on-line, completed the corresponding experiments, and verified by tests. Experimental results show that the calibration method is feasible in project and effective, and increased level of automation.
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