Title: The D-S theory algorithm with application in the strap-down inertial navigation system

Authors: Henghao Zhang; Zaozhen Liu; Xiuyun Meng; Yongwei Li

Addresses: School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China. ' School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China. ' School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, China. ' College of Electrical Engineering and Information Science, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China

Abstract: The strap-down inertial navigation system (SINS) can produce the cumulative error when it works. To address this problem, the D-S theory is introduced in the system. The confidence space can be setup via the D-S theory and multi-algorithms can be used in the SINS system to obtain multi-groups information data. The fuse algorithm can compute and get the optimal information using the D-S theory confidence space and the limit of definite integral. The optimal information can be used in the next step, thus to reduce the error. The result demonstrates that the D-S theory algorithm can reduce the cumulative error of SINS and improve the system's precision.

Keywords: D-S theory; Dempster-Shafer theory; confidence space; inertial navigation systems; definite integral limit.

DOI: 10.1504/IJMIC.2012.047736

International Journal of Modelling, Identification and Control, 2012 Vol.16 No.3, pp.259 - 264

Published online: 17 Dec 2014 *

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