Research on virtual gyro configuration of redundant MEMS system based on ANFIS

In order to improve the accuracy and performance of low-accuracy MEMS inertial devices, a new method about virtual gyro construction based on ANFIS is presented, by learning mechanism and reasoning ability of fuzzy reasoning method. Error characteristics of redundant MEMS gyroscopes are analyzed with Allan method, error model of redundant gyros are built, and a “virtual” gyroscope with higher precision is gotten. The newly system with virtual gyroscopes by the presented method is testified by simulation results, and it shows that the attitude error is reduced, and the accuracy of the optimized MEMS system composed of “virtual” gyros based on ANFIS is improved.