Paper Info
Title
Position and Velocity estimation of Re-entry Vehicles using Fast Unscented Kalman Filters.
Abstract
Application of two new UKF based estimation techniques with reduced processing time in re-entry vehicle position and velocity estimation problem using ground-based range and elevation measurements is presented. The first method is called the Single Propagation Unscented Kalman Filter (SPUKF) where, the a postiriori state is propagated only once and then the sampled sigma points at the next time state are approximated by the first-order Taylor Series terms. In the second method called the Extrapolated Single Propagation Unscented Kalman Filter (ESPUKF), the sigma points are approximated to the second-order Taylor Series terms using the Richardson Extrapolation. The EKF, SPUKF, ESPUKF and the UKF are utilized in a re-entry vehicle navigation scenario using range and elevation measurements. The estimation accuracies and the processing times for different algorithms are compared for the scenario. The result demonstrates that the UKF provides better accuracy than the EKF but requires more processing time. The SPUKF accuracy is better than the EKF and the processing time is significantly less than the UKF. However, the accuracy of the SPUKF is less than the UKF. The ESPUKF provides estimation accuracy comparable to the UKF and the processing time is also significantly reduced.
Year
Venue
Field
2016
arXiv: Systems and Control
Extended Kalman filter,Richardson extrapolation,Control theory,Unscented transform,Kalman filter,Sigma,Elevation,Mathematics,Velocity estimation,Taylor series
DocType
Volume
ISSN
Journal
abs/1611.09702
Proc. 16th Australian Space Research Conference, Melbourne, Australia, 2016
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Sanat Biswas100.34
Li Qiao2334.98
Andrew G. Dempster357771.98