捷联惯性测量组合挠性陀螺静态漂移试验标定

Calibration of Gyro Static Drift Parameters of Strapdown System

本文研究了捷联惯性测量组合中挠性陀螺静态漂移模型系数的标定问题。对捷联惯性测量组合中挠性陀螺静态漂移误差进行了建模，研究了采用多位置试验对陀螺静态漂移模型系数进行标定的方法。探讨了采用位置试验对捷联惯性测量组合挠性陀螺静态漂移系数可靠地进行标定所需选取的最少位置数，试验证明了用最少位置实验进行标定的有效性。

Static drift parameters calibration of dynamically tuned gyros of inertial measurement unit （IMU） in strapdown system is described. A static drift model is presented. Then based on this model, multi-position test is adopted to calibrate the model parameters. The calibration methods of the static drift error coefficients are discussed. The least positions to calibrate the parameters reliably are discussed. And this least-position test is proved feasible by test results.