摘要
惯导对准过程中陀螺仪漂移率的测量是一个重要的工程实际问题 ,经典的闭环测量在测量精度和快速性等方面存在缺点。研究了开环测漂的方案 ,利用递推的最小二乘法获得了陀螺漂移的计算公式。实验证明 ,开环测漂方案既能满足精度要求 ,又能保证快速性 。
Existing closed-loop methods for measuring gyro drift can not meet the precision and speed requirements needed for initial alignment of INS (inertial navigation system). We now propose an engineering open-loop method that can meet the precision and speed requirements needed for initial alignment of INS in China. For this open-loop method, we derived a number of equations that are needed in the process of computing gyro drift. Experimental results show preliminarily that our open-loop method for obtaining gyro drift can meet the precision and speed requirements needed for initial alignment of INS in China.
出处
《西北工业大学学报》
EI
CAS
CSCD
北大核心
2004年第5期662-665,共4页
Journal of Northwestern Polytechnical University
关键词
惯导系统
陀螺仪漂移
开环测漂
inertial navigation system (INS), gyro drift, open-loop method
