Real-time period determination for relaxation oscillators using wavelets

M. Berkel, van; G. Witvoet; M.R. Baar, de; P.W.J.M. Nuij; H.G. Morsche, ter; Maarten Steinbuch

Real-time period determination for relaxation oscillators using wavelets

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

In this article an algorithm for optimized real-time sensing of crashes for control purposes is presented. The algorithm is based on time-scale wavelet theory and edge-detection. It is designed for the control of the sawtooth instability, a relaxation oscillator, in fusion plasmas. However, in principle, it can be applied to any periodic crash, measured with any temporally resolved data. It is argued that the detection of crashes has considerably less delay and detects crashes with higher temporal accuracy than other linear methods; this holds especially for very noisy measurements.

Original language	English
Title of host publication	Proceedings of the American Control Conference (ACC 2012), 27-29 June 2012, Montreal, Canada
Place of Publication	Piscataway
Publisher	Institute of Electrical and Electronics Engineers
Pages	5055-5060
ISBN (Print)	978-1-4577-1096-4
Publication status	Published - 2012
Event	2012 American Control Conference, ACC 2012 - Fairmont Queen Elizabeth, Montreal, Canada Duration: 27 Jun 2012 → 29 Jun 2012 http://acc2012.a2c2.org/ http://acc2012.a2c2.org/index.php

Conference

Conference	2012 American Control Conference, ACC 2012
Abbreviated title	ACC 2012
Country/Territory	Canada
City	Montreal
Period	27/06/12 → 29/06/12
Internet address	http://acc2012.a2c2.org/ http://acc2012.a2c2.org/index.php

Cite this

@inproceedings{e4e7b078c8ba4ab6b02058b158dee63a,

title = "Real-time period determination for relaxation oscillators using wavelets",

abstract = "In this article an algorithm for optimized real-time sensing of crashes for control purposes is presented. The algorithm is based on time-scale wavelet theory and edge-detection. It is designed for the control of the sawtooth instability, a relaxation oscillator, in fusion plasmas. However, in principle, it can be applied to any periodic crash, measured with any temporally resolved data. It is argued that the detection of crashes has considerably less delay and detects crashes with higher temporal accuracy than other linear methods; this holds especially for very noisy measurements.",

author = "\{Berkel, van\}, M. and G. Witvoet and \{Baar, de\}, M.R. and P.W.J.M. Nuij and \{Morsche, ter\}, H.G. and Maarten Steinbuch",

year = "2012",

language = "English",

isbn = "978-1-4577-1096-4",

pages = "5055--5060",

booktitle = "Proceedings of the American Control Conference (ACC 2012), 27-29 June 2012, Montreal, Canada",

publisher = "Institute of Electrical and Electronics Engineers",

address = "United States",

note = "2012 American Control Conference, ACC 2012, ACC 2012 ; Conference date: 27-06-2012 Through 29-06-2012",

url = "http://acc2012.a2c2.org/, http://acc2012.a2c2.org/index.php",

}

Berkel, van, M , Witvoet, G , Baar, de, MR , Nuij, PWJM, Morsche, ter, HG & Steinbuch, M 2012, Real-time period determination for relaxation oscillators using wavelets. in Proceedings of the American Control Conference (ACC 2012), 27-29 June 2012, Montreal, Canada. Institute of Electrical and Electronics Engineers, Piscataway, pp. 5055-5060, 2012 American Control Conference, ACC 2012, Montreal, Quebec, Canada, 27/06/12.

Real-time period determination for relaxation oscillators using wavelets. / Berkel, van, M.; Witvoet, G.; Baar, de, M.R. et al.
Proceedings of the American Control Conference (ACC 2012), 27-29 June 2012, Montreal, Canada. Piscataway: Institute of Electrical and Electronics Engineers, 2012. p. 5055-5060.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Real-time period determination for relaxation oscillators using wavelets

AU - Berkel, van, M.

AU - Witvoet, G.

AU - Baar, de, M.R.

AU - Nuij, P.W.J.M.

AU - Morsche, ter, H.G.

AU - Steinbuch, Maarten

PY - 2012

Y1 - 2012

N2 - In this article an algorithm for optimized real-time sensing of crashes for control purposes is presented. The algorithm is based on time-scale wavelet theory and edge-detection. It is designed for the control of the sawtooth instability, a relaxation oscillator, in fusion plasmas. However, in principle, it can be applied to any periodic crash, measured with any temporally resolved data. It is argued that the detection of crashes has considerably less delay and detects crashes with higher temporal accuracy than other linear methods; this holds especially for very noisy measurements.

AB - In this article an algorithm for optimized real-time sensing of crashes for control purposes is presented. The algorithm is based on time-scale wavelet theory and edge-detection. It is designed for the control of the sawtooth instability, a relaxation oscillator, in fusion plasmas. However, in principle, it can be applied to any periodic crash, measured with any temporally resolved data. It is argued that the detection of crashes has considerably less delay and detects crashes with higher temporal accuracy than other linear methods; this holds especially for very noisy measurements.

M3 - Conference contribution

SN - 978-1-4577-1096-4

SP - 5055

EP - 5060

BT - Proceedings of the American Control Conference (ACC 2012), 27-29 June 2012, Montreal, Canada

PB - Institute of Electrical and Electronics Engineers

CY - Piscataway

T2 - 2012 American Control Conference, ACC 2012

Y2 - 27 June 2012 through 29 June 2012

ER -

Real-time period determination for relaxation oscillators using wavelets

Abstract

Conference

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