WIT Press


Adaptation Of The Kinematic Train Model Using The Interacting Multiple Model Estimator

Price

Free (open access)

Paper DOI

10.2495/CR040501

Volume

74

Pages

10

Published

2004

Size

323 kb

Author(s)

F. Bohringer & A. Geistler

Abstract

This paper presents an InteractingMultiple Model (IMM) estimator that performs a reliable train location based on soft-switching between two kinematic train models: one assuming constant velocity and the other assuming constant acceleration. Two sensors provide input to the system, namely an eddy current sensor device measuring the velocity and a Global Navigation Satellite System (GNSS) sensor unit delivering absolute position information. Simulations show that the presented location system offers robust and accurate position information, even in case of sensor failures or GNSS signal discontinuances. 1 Introduction State-of-the-art location systems are mainly based on hardware installations along the track [1]. In contrast, the presented system necessitates only train-borne sensors to perform th

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