University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Dynamic data rectification using particle filters

Chen, T, Morris, J and Martin, E (2008) Dynamic data rectification using particle filters Computers and Chemical Engineering, 32 (3). 451 - 462. ISSN 0098-1354

[img]
Preview
PDF
tchen08-cce.pdf - Accepted Version
Available under License : See the attached licence file.

Download (243Kb)
[img] Plain Text (licence)
licence.txt

Download (1516b)

Abstract

The basis of dynamic data rectification is a dynamic process model. The successful application of the model requires the fulfilling of a number of objectives that are as wide-ranging as the estimation of the process states, process signal denoising and outlier detection and removal. Current approaches to dynamic data rectification include the conjunction of the Extended Kalman Filter (EKF) and the expectation-maximization algorithm. However, this approach is limited due to the EKF being less applicable where the state and measurement functions are highly non-linear or where the posterior distribution of the states is non-Gaussian. This paper proposes an alternative approach whereby particle filters, based on the sequential Monte Carlo method, are utilized for dynamic data rectification. By formulating the rectification problem within a probabilistic framework, the particle filters generate Monte Carlo samples from the posterior distribution of the system states, and thus provide the basis for rectifying the process measurements. Furthermore, the proposed technique is capable of detecting changes in process operation and thus complements the task of process fault diagnosis. The appropriateness of particle filters for dynamic data rectification is demonstrated through their application to an illustrative non-linear dynamic system, and a benchmark pH neutralization process.

Item Type: Article
Uncontrolled Keywords: dynamic data rectification, filtering, particle filters, sequential Monte Carlo, state estimation, DATA RECONCILIATION, BATCH PROCESSES, STATE, SIMULATION, SYSTEMS
Divisions: Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Depositing User: Symplectic Elements
Date Deposited: 28 Sep 2011 12:10
Last Modified: 23 Sep 2013 18:44
URI: http://epubs.surrey.ac.uk/id/eprint/7159

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800