惯性测量组合误差系数的时变分析与建模  

Time-varying Analysis and Modeling for the IMU Error Coefficient

作　　者：张旭[1] 肖龙旭[2] 王安民[2] 王雪梅[1] 

机构地区：[1]第二炮兵工程学院,西安710025 [2]第二炮兵装备研究院,北京100085

出　　处：《航天控制》2007年第5期51-53,93,共4页Aerospace Control

摘　　要：为了提高惯性测量组合误差系数的标定精度,对惯性测量组合一次通电条件下多次测量的误差系数通过平滑滤波和最小二乘拟合等方法进行分析处理,建立了时漂误差模型。结合某惯性测量组合的相关计算结果,证明了时漂系数更能反映误差系数一次通电条件下的变化规律。In order to improve the calibrating accuracy of the IMU, the IMU error coefficient, under the condition of once electrify and several measurement, is analyzed by the method such as smoothing and least squares fitting approach. The error model is given. Combined with the measurement result of a kind of IMU, it is proved that the time-varying error can reflect the trend of error coefficient precisely with once electrify.

关 键 词：惯性测量组合 误差系数 时变 平滑 拟合 

分 类 号：U666.12[交通运输工程—船舶及航道工程]