Minimisation of computation for digital controllers

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A novel Structure is described and analysed which has a number of advantages for the practical implementation of recursive digital filters in control applications. It is based upon the use of an established alternative to the usual z-1 delay operator, but this has been developed into a standard form called a δ filter which is both robust and versatile. The advantages are shown to be in the simplicity of implementation, including the determination of word-lengths for the coefficients and variables. First- and second-order filter structures are given in detail, and simulations presented to demonstrate the operation of a few typical filters. Significant reductions in computation requirements are possible using the δ filter.

LanguageEnglish
Pages218-224
Number of pages7
JournalTransactions of the Institute of Measurement & Control
Volume11
Issue number5
DOIs
Publication statusPublished - 1 Dec 1989
Externally publishedYes

Fingerprint

Digital filters
controllers
filters
Controllers
optimization
digital filters
operators
requirements
coefficients
simulation

Cite this

@article{b9e3fc5620ae4f3b9ae77376e67ba394,
title = "Minimisation of computation for digital controllers",
abstract = "A novel Structure is described and analysed which has a number of advantages for the practical implementation of recursive digital filters in control applications. It is based upon the use of an established alternative to the usual z-1 delay operator, but this has been developed into a standard form called a δ filter which is both robust and versatile. The advantages are shown to be in the simplicity of implementation, including the determination of word-lengths for the coefficients and variables. First- and second-order filter structures are given in detail, and simulations presented to demonstrate the operation of a few typical filters. Significant reductions in computation requirements are possible using the δ filter.",
keywords = "coefficient sensitivity, digital controllers, digital filter structures, discrete transfer functions, Recursive digital filters",
author = "Goodall, {R. M.}",
year = "1989",
month = "12",
day = "1",
doi = "10.1177/014233128901100501",
language = "English",
volume = "11",
pages = "218--224",
journal = "Transactions of the Institute of Measurement and Control",
issn = "0142-3312",
publisher = "SAGE Publications Ltd",
number = "5",

}

Minimisation of computation for digital controllers. / Goodall, R. M.

In: Transactions of the Institute of Measurement & Control, Vol. 11, No. 5, 01.12.1989, p. 218-224.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Minimisation of computation for digital controllers

AU - Goodall, R. M.

PY - 1989/12/1

Y1 - 1989/12/1

N2 - A novel Structure is described and analysed which has a number of advantages for the practical implementation of recursive digital filters in control applications. It is based upon the use of an established alternative to the usual z-1 delay operator, but this has been developed into a standard form called a δ filter which is both robust and versatile. The advantages are shown to be in the simplicity of implementation, including the determination of word-lengths for the coefficients and variables. First- and second-order filter structures are given in detail, and simulations presented to demonstrate the operation of a few typical filters. Significant reductions in computation requirements are possible using the δ filter.

AB - A novel Structure is described and analysed which has a number of advantages for the practical implementation of recursive digital filters in control applications. It is based upon the use of an established alternative to the usual z-1 delay operator, but this has been developed into a standard form called a δ filter which is both robust and versatile. The advantages are shown to be in the simplicity of implementation, including the determination of word-lengths for the coefficients and variables. First- and second-order filter structures are given in detail, and simulations presented to demonstrate the operation of a few typical filters. Significant reductions in computation requirements are possible using the δ filter.

KW - coefficient sensitivity

KW - digital controllers

KW - digital filter structures

KW - discrete transfer functions

KW - Recursive digital filters

UR - http://www.scopus.com/inward/record.url?scp=84970348476&partnerID=8YFLogxK

U2 - 10.1177/014233128901100501

DO - 10.1177/014233128901100501

M3 - Article

VL - 11

SP - 218

EP - 224

JO - Transactions of the Institute of Measurement and Control

T2 - Transactions of the Institute of Measurement and Control

JF - Transactions of the Institute of Measurement and Control

SN - 0142-3312

IS - 5

ER -