New minimum sigma set for unscented filtering

Summary In this work, a new minimum set of sigma points for unscented filtering is proposed along with its unscented Kalman filter in both square-root and nonsquare-root forms. Comparative with the other reduced sigma sets of the literature, the new sigma set is, in some cases, better defined or, in another case, a generalization. In numerical examples, the unscented transform of the new sigma set is compared with the unscented transforms of the other reduced sigma sets of the literature. In addition, the performance of the new unscented Kalman filter is studied in an aircraft target tracking scenario. Copyright © 2014 John Wiley & Sons, Ltd.

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