Author(s)

Wen Ye, Chengguang Cai, Bo Wang, Ping Yang

Corresponding Author

Wen Ye

ABSTRACT

Micro-Electro-Mechanical System (MEMS) IMU has been widely applied into the small inertial navigations. To provide the reliable accuracy of MEMS navigation system, error calibration is necessary before it is put into use, while the efficiency and reliability of its calibration are also taken into consideration. Automatic calibration technology can standardize calibration procedure and reduce human intervention, however, the current automatic calibration systems can only achieve semi-automatization of the calibration. To order to achieve full automation, a new automatic calibration system is designed in this paper. Firstly, the important functions are designed, which includes BISS encoder, serial communication and data acquisition based on FPGA; then the host software is also developed based on LabVIEW, finally the system achieves automatic calibration, data display, processing and calibration report generation. In the calibration of MEMS IMU, results show that the system can significantly improve efficiency of calibration.

KEYWORDS

MEMS-IMU; Automatic Calibration; LabVIEW; FPGA