Title
Robust state estimation for Micro Aerial Vehicles based on system dynamics
Abstract
In this work, we present a model-based estimation scheme for multi-rotor Micro Aerial Vehicles (MAVs). Although modeling approaches for MAVs have been presented in the past, these models have rarely been used for real-time state estimation onboard MAVs. Building on this work, we identify the most dominant effects and propose an easy-to-use calibration scheme for estimation of the model parameters. Given the calibration estimates for these parameters, we derive a state estimator where the state prediction of the indirect Extended Kalman Filter (EKF) is driven by a MAV model. Solely using measurements from the Inertial Measurement Unit (IMU) and a barometric pressure sensor - both available on almost every MAV - our model-based formulation keeps the estimated velocity of the MAV bounded in all directions, as opposed to state of the art IMU-model driven state estimators onboard MAVs. This is crucial for keeping MAVs airborne safely, for instance in the case of failures or re-initialization of vision based localization systems.
Year
DOI
Venue
2015
10.1109/ICRA.2015.7139935
IEEE International Conference on Robotics and Automation
Keywords
Field
DocType
Kalman filters,calibration,nonlinear filters,pressure sensors,space vehicles,state estimation,units (measurement),vehicle dynamics,EKF,IMU,barometric pressure sensor,calibration scheme,indirect extended Kalman filter,inertial measurement unit,model-based estimation scheme,multirotor micro aerial vehicles,real-time state estimation onboard MAV,system dynamics,vision based localization systems
Extended Kalman filter,Control theory,Accelerometer,Control engineering,Inertial measurement unit,System dynamics,Acceleration,Engineering,Calibration,Estimator,Aerodynamics
Conference
Volume
Issue
ISSN
2015
1
1050-4729
Citations 
PageRank 
References 
4
0.66
12
Authors
4
Name
Order
Citations
PageRank
M. Burri134318.62
Manuel Datwiler240.66
Markus Achtelik371032.78
Roland Siegwart47640551.49