The University of Alberta's Applied Nonlinear Controls Lab (ANCL) helicopter unmanned aerial vehicle's (UAV's) existing GPS-aided inertial navigation system (INS) does not provide observability of heading angle during hover. This motivates the integration of a triaxial magnetometer aiding sensor into the extended Kalman filter (EKF)-based navigation algorithm. A novel magnetometer calibration procedure is implemented and compared with conventional approaches. Experimental results in ground and flight testing confirm that the observability issue is resolved and demonstrate improvements in attitude estimation.
Integration of a Triaxial Magnetometer into a Helicopter UAV GPS-Aided INS
IEEE Transactions on Aerospace and Electronic Systems ; 48 , 4 ; 2947-2960
2012-10-01
3730348 byte
Article (Journal)
Electronic Resource
English
Magnetic anomaly sensing system using two triaxial magnetometer sensors
European Patent Office | 2020
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