摘要
传递对准时,载体的弹性变形会对装在载体上的子惯导系统的对准精度产生影响,因此需要对弹性变形进行建模,估计出弹性变形角并加以补偿来提高对准精度。文中分别采用“速度+角速率”匹配的对准方法和“速度+姿态角”匹配的对准方法进行卡尔曼滤波仿真,对安装误差角和弹性变形角进行了估计,并对估计结果进行了比较,分析了它们的对准精度和适用性。
In transfer alignment, the dynamic flexure of the carrier can greatly degrade the alignment accuracy of the slave SINS, so it is necessary to model the flexure of the carrier, estimate the distortion angle and compensate the error to improve the alignment accuracy. In this paper, the “velocity ＋ angular velocity” match method and the “velocity ＋ attitude” match method are used respectively to estimate both the static misalignment and the instantaneous dynamic distortion angle. The simulation results are compared to analyze their alignment accuracy and adaptability.
出处
《中国惯性技术学报》
EI
CSCD
2005年第4期14-17,共4页
Journal of Chinese Inertial Technology
