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旋转捷联惯导系统采用旋转调制误差补偿技术对陀螺仪和加速度计误差进行调制,可以提高系统导航精度。文章借助捷联系统基本误差方程,简要分析了旋转调制误差补偿的机理;通过对几种典型IMU旋转方案的分析和仿真,验证了旋转调制误差补偿技术的有效性并比较了不同旋转方案的特点。
Rotating SINS uses gyroscope and accelerometer error modulation using rotation modulation error compensation techniques to improve system navigation accuracy. This paper briefly analyzes the mechanism of rotation modulation error compensation by using the basic error equation of the strapdown system. Through the analysis and simulation of several typical IMU rotation schemes, the validity of the rotation modulation error compensation technique is verified and the characteristics of different rotation schemes are compared .