摘要
针对MEMS陀螺工作易受温度变化影响、角速度测量输出误差大、启动预热时间长的问题，通过实验分析，建立了零偏温度补偿模型。利用多元线性回归分析技术进行参数辨识，并采用最小二乘方法进行求解。对比零偏温度补偿前后的试验结果表明，经过补偿后的MEMS陀螺测量精度得到提高，并有效缩短了MEMS陀螺的启动稳定时间。
A model for bias temperature compensation was established through experimental analysis to solve problems of MEMS gyro, such as easily affected by temperature change, obvious output error in angular velocity meas- urement and longer start - up time. The multiple linear technology and least square method were employed to identify parameters and find the solution. A comparison test of the performance before and after bias temperature compensation showed that the measurement accuracy of MEMS gyro after compensation was improved and the start - up time to reach stability was shortened.
出处
《测绘科学与工程》
2012年第3期18-20,35,共4页
Geomatics Science and Engineering
关键词
温度补偿
MEMS陀螺
多元线性回归
最小二乘估计
temperature compensation
MEMS Gyro
multiple linear regression
least square estimation
