Robust broadband periodic excitation design

G. Simon, Johan Schoukens

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

This paper considers a rather practical problem arising when inexperienced users misuse the (otherwise well-designed) periodic broadband excitation signals during the measurement or signal processing phase of an identification process. Using a fractional period of the excitation signal instead of full periods may affect not only the precision because of the well-known leakage effect, but may cause a serious loss of information on the measured system as well. The power of the excitation signal in certain frequency bands may be much lower (30-40 dB) than it would be expected, and thus the measurement in a noisy environment may give poor result. A solution is presented here to make periodic broadband (multisine) excitation signals more robust against such misuse. The suggested solution is analyzed, and the theoretical results are verified by practical examples.

Original languageEnglish
Pages (from-to)270-274
Number of pages5
JournalIEEE Transactions on Instrumentation and Measurement
Volume49
Issue number2
DOIs
Publication statusPublished - 2000

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broadband
Frequency bands
excitation
Signal processing
signal processing
leakage
causes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Instrumentation

Cite this

Robust broadband periodic excitation design. / Simon, G.; Schoukens, Johan.

In: IEEE Transactions on Instrumentation and Measurement, Vol. 49, No. 2, 2000, p. 270-274.

Research output: Contribution to journalArticle

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