加速度计温度模型的辨识  

Identification for Temperature Model of Accelerometer

作　　者：王淑娟[1] 黄显林[1] 刘升才[1] 

机构地区：[1]哈尔滨工业大学

出　　处：《中国惯性技术学报》1997年第1期32-37,共6页Journal of Chinese Inertial Technology

摘　　要：本文采用最小二乘估计和正交多项式拟合的方法，得到了石英挠性摆式加速度计（精度４×１０－５）模型系数随温度变化的规律，建立了２０℃—５０℃温度范围内加速度计的温度模型。应用该模型进行温度干扰补偿后，使模型辨识精度提高一个数量级。通过大量的重复性试验证明了方法的正确性。Using the method of least square estimation and orthogonal polynomial fitting, a law that the coefficients of accelerometer model vary with temperature has been obtained, and the temperature model of accelerometer within 20℃～50℃ has been established. After compensating for temperature disturbance is based on the above model, the identification accurancy of the model has been raised one order of magnitude. A large quantity of repetitive experiment shows that the method is corrected.

关 键 词：加速度计 辨识 

分 类 号：V241.45[航空宇航科学与技术—飞行器设计]