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Group-sma algorithm based joint estimation of train parameter and state

  • Wei Zheng*
  • , Juan Han
  • , Weijie Kong
  • , Lixiang Wang
  • *Corresponding author for this work
  • Beijing Jiaotong University

Research output: Contribution to journalArticlepeer-review

Abstract

The braking rate and train arresting operation is important in the train braking performance. It is difficult to obtain the states of the train on time because of the measurement noise and a long calculation time. A type of Group Stochastic M-algorithm (GSMA) based on Rao-Blackwellization Particle Filter (RBPF) algorithm and Stochastic M-algorithm (SMA) is proposed in this paper. Compared with RBPF, GSMA based estimation precisions for the train braking rate and the control accelerations were improved by 78% and 62%, respectively. The calculation time of the GSMA was decreased by 70% compared with SMA.

Original languageEnglish
Pages (from-to)85-95
Number of pages11
JournalPromet - Traffic and Transportation
Volume27
Issue number1
DOIs
StatePublished - 2015
Externally publishedYes

Keywords

  • Parameter estimation
  • Particle filter
  • Rail braking system
  • State estimation

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