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IMM-UKF-TFS Model-based Approach for Intelligent Navigation

Published online by Cambridge University Press:  19 July 2013

M. Malleswaran ,
V. Vaidehi ,
S. Irwin  and
B. Robin
M. Malleswaran*
Affiliation:
(Department of Electronics and Communication Engineering, Regional Centre of Anna University, Tirunelveli Region, Tamilnadu, India)
V. Vaidehi
Affiliation:
(Department of Electronics and Communication Engineering, Regional Centre of Anna University, Tirunelveli Region, Tamilnadu, India)
S. Irwin
Affiliation:
(Department of Electronics and Communication Engineering, Regional Centre of Anna University, Tirunelveli Region, Tamilnadu, India)
B. Robin
Affiliation:
(Department of Electronics and Communication Engineering, Regional Centre of Anna University, Tirunelveli Region, Tamilnadu, India)
*
(Email: malleshaut@gmail.com)
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Abstract

This paper aims to introduce a novel approach named IMM-UKF-TFS (Interacting Multiple Model-Unscented Kalman Filter-Two Filter Smoother) to attain positional accuracy in the intelligent navigation of a manoeuvring vehicle. Here, the navigation filter is designed with an Unscented Kalman Filter (UKF), together with an Interacting Multiple Model algorithm (IMM), which estimates the state variables and handles the noise uncertainty of the manoeuvring vehicle. A model-based estimator named Two Filter Smoothing (TFS) is implemented along with the UKF-based IMM to improve positional accuracy. The performance of the proposed IMM-UKF-TFS method is verified by modelling the vehicle motion into Constant Velocity-Coordinated Turn (CV-CT), Constant Velocity – Constant Acceleration (CV-CA) and Constant Acceleration-Coordinated Turn (CA-CT) models. The simulation results proved that the proposed IMM-UKF-TFS gives better positional accuracy than the existing conventional estimators such as UKF and IMM-UKF.

Keywords

GPSINSNavigationIMM-UKF-TFS
Type
Research Article
Information
The Journal of Navigation , Volume 66 , Issue 6 , November 2013 , pp. 859 - 877
Copyright
Copyright © The Royal Institute of Navigation 2013 

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References

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