Finite-precision implementation issues in narrowband active control
(2007) 46th IEEE Conference on Decision and Control 2007, CDC In Proceedings of the IEEE Conference on Decision and Control p.1076-1081- Abstract
The domain of active control of narrowband disturbances, of either vibrational or acoustic noise source, poses several methodological and implementational issues. Besides all the problems that normally arise in digital control, some specific issues are related to the attenuation of harmonic or quasi-harmonic signals, which require the usage of control blocks approaching, or even touching, the stability limit, such as notch filters or dynamic oscillators. The finite-precision implementation of these blocks can evidence several problems related to nonlinear effects such as signal quantization, numerical representation, and approximate computation. This paper focuses on the effects related to finite-precision computations and floating... (More)
The domain of active control of narrowband disturbances, of either vibrational or acoustic noise source, poses several methodological and implementational issues. Besides all the problems that normally arise in digital control, some specific issues are related to the attenuation of harmonic or quasi-harmonic signals, which require the usage of control blocks approaching, or even touching, the stability limit, such as notch filters or dynamic oscillators. The finite-precision implementation of these blocks can evidence several problems related to nonlinear effects such as signal quantization, numerical representation, and approximate computation. This paper focuses on the effects related to finite-precision computations and floating point numerical representation, and, after a brief literature review, shows the necessity of extending conventional methodologies for the analysis of finite-precision controller implementation. Some illustrative examples are also provided to illustrate the implementation problems discussed.
(Less)
- author
- Maggio, Martina LU ; Leva, Alberto and Piroddi, Luigi
- publishing date
- 2007
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings of the 46th IEEE Conference on Decision and Control 2007, CDC
- series title
- Proceedings of the IEEE Conference on Decision and Control
- article number
- 4434718
- pages
- 6 pages
- conference name
- 46th IEEE Conference on Decision and Control 2007, CDC
- conference location
- New Orleans, LA, United States
- conference dates
- 2007-12-12 - 2007-12-14
- external identifiers
-
- scopus:62749111371
- ISSN
- 0191-2216
- ISBN
- 1424414989
- 9781424414987
- DOI
- 10.1109/CDC.2007.4434718
- project
- Cloud Control
- language
- English
- LU publication?
- no
- additional info
- Copyright: Copyright 2009 Elsevier B.V., All rights reserved.
- id
- c2e5f645-be4c-44ed-b9ab-7152c8d3a0c5
- date added to LUP
- 2021-03-22 11:16:17
- date last changed
- 2022-02-01 20:52:53
@inproceedings{c2e5f645-be4c-44ed-b9ab-7152c8d3a0c5,
abstract = {{<p>The domain of active control of narrowband disturbances, of either vibrational or acoustic noise source, poses several methodological and implementational issues. Besides all the problems that normally arise in digital control, some specific issues are related to the attenuation of harmonic or quasi-harmonic signals, which require the usage of control blocks approaching, or even touching, the stability limit, such as notch filters or dynamic oscillators. The finite-precision implementation of these blocks can evidence several problems related to nonlinear effects such as signal quantization, numerical representation, and approximate computation. This paper focuses on the effects related to finite-precision computations and floating point numerical representation, and, after a brief literature review, shows the necessity of extending conventional methodologies for the analysis of finite-precision controller implementation. Some illustrative examples are also provided to illustrate the implementation problems discussed.</p>}},
author = {{Maggio, Martina and Leva, Alberto and Piroddi, Luigi}},
booktitle = {{Proceedings of the 46th IEEE Conference on Decision and Control 2007, CDC}},
isbn = {{1424414989}},
issn = {{0191-2216}},
language = {{eng}},
pages = {{1076--1081}},
series = {{Proceedings of the IEEE Conference on Decision and Control}},
title = {{Finite-precision implementation issues in narrowband active control}},
url = {{http://dx.doi.org/10.1109/CDC.2007.4434718}},
doi = {{10.1109/CDC.2007.4434718}},
year = {{2007}},
}