扩展卡尔曼滤波应用于加速度计特性估计方法研究(英文)

Research on Extended Kalman Filter Application in Calibration of Accelerometer Specifications

加速度计使用时,通常都需要对其标度因素、零偏以及敏感轴进行标定。为了准确标定加速度计的特性参数,提出了5位置连续测量法,建立了相应的测量模型,根据模型的非线性特性,采用了扩展卡尔曼滤波算法对实测数据进行滤波处理,准确了标定出了加速度计的特性参数。

Some specifications such as bias, scale factor and sensing axis should he calibrated before acceler- ometer was put into application. For this purpose, five-positions method is presented and the calibration model is set up also. According to considesing the non-lineas properties of the model , extended Kalman fil- ter algorithm is in application to the data processing. The specifications mentioned are calibrated precisely.