Frequency-Domain Iterative Learning Control of a Marine Vibrator
Sörnmo, Olof LU ; Bernhardsson, Bo LU
; Kröling, Olle
; Gunnarsson, Per
and Tenghamn, Rune
(2016)
In Control Engineering Practice
47.
p.70-80
- Abstract
- To the purpose of marine seismic acquisition, new acoustic sources have been developed to reduce the environmental impact. The use of marine vibrators makes it possible to define emission frequency ranges, consequently allowing limitation of the frequencies that disturb marine animal life. Constructing marine vibrators with high efficiency and linear dynamics is however difficult, and the vibrators suffer from both friction, backlash and high-order harmonics. These nonlinear effects, in combination with drifting dynamics, make the required control a crucial and challenging problem. This paper presents a model-based iterative learning control solution, performed in the frequency-domain. Additionally, an adaptive reidentification algorithm... (More)
- To the purpose of marine seismic acquisition, new acoustic sources have been developed to reduce the environmental impact. The use of marine vibrators makes it possible to define emission frequency ranges, consequently allowing limitation of the frequencies that disturb marine animal life. Constructing marine vibrators with high efficiency and linear dynamics is however difficult, and the vibrators suffer from both friction, backlash and high-order harmonics. These nonlinear effects, in combination with drifting dynamics, make the required control a crucial and challenging problem. This paper presents a model-based iterative learning control solution, performed in the frequency-domain. Additionally, an adaptive reidentification algorithm is developed to cope with drifting dynamics. The proposed solutions are successfully evaluated in experiments with a marine vibrator. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8408270
- author
- Sörnmo, Olof
LU
; Bernhardsson, Bo
LU
; Kröling, Olle
; Gunnarsson, Per
and Tenghamn, Rune
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Control Engineering Practice
- volume
- 47
- pages
- 70 - 80
- publisher
- Elsevier
- external identifiers
-
- scopus:84955088723
- ISSN
- 0967-0661
- language
- English
- LU publication?
- yes
- id
- eac7b17a-fd3c-4740-aeff-f6e5351b311e (old id 8408270)
- date added to LUP
- 2016-04-04 12:14:27
- date last changed
- 2022-04-08 08:29:09
@article{eac7b17a-fd3c-4740-aeff-f6e5351b311e,
abstract = {{To the purpose of marine seismic acquisition, new acoustic sources have been developed to reduce the environmental impact. The use of marine vibrators makes it possible to define emission frequency ranges, consequently allowing limitation of the frequencies that disturb marine animal life. Constructing marine vibrators with high efficiency and linear dynamics is however difficult, and the vibrators suffer from both friction, backlash and high-order harmonics. These nonlinear effects, in combination with drifting dynamics, make the required control a crucial and challenging problem. This paper presents a model-based iterative learning control solution, performed in the frequency-domain. Additionally, an adaptive reidentification algorithm is developed to cope with drifting dynamics. The proposed solutions are successfully evaluated in experiments with a marine vibrator.}},
author = {{Sörnmo, Olof and Bernhardsson, Bo and Kröling, Olle and Gunnarsson, Per and Tenghamn, Rune}},
issn = {{0967-0661}},
language = {{eng}},
pages = {{70--80}},
publisher = {{Elsevier}},
series = {{Control Engineering Practice}},
title = {{Frequency-Domain Iterative Learning Control of a Marine Vibrator}},
url = {{https://lup.lub.lu.se/search/files/5960332/8408315.pdf}},
volume = {{47}},
year = {{2016}},
}