Robust broadband periodic excitation design

Gyula Simon, Johan Schoukens

Research output: Contribution to conferencePaper

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
Pages1217-1221
Number of pages5
Publication statusPublished - Jan 1 1999
EventProceedings of the 1999 16th IEEE Instrumentation and Measurement Technology Conference, IMTC/99 - Measurements for the new Millenium - Venice, Italy
Duration: Jun 24 1999Jun 26 1999

Other

OtherProceedings of the 1999 16th IEEE Instrumentation and Measurement Technology Conference, IMTC/99 - Measurements for the new Millenium
CityVenice, Italy
Period6/24/996/26/99

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Simon, G., & Schoukens, J. (1999). Robust broadband periodic excitation design. 1217-1221. Paper presented at Proceedings of the 1999 16th IEEE Instrumentation and Measurement Technology Conference, IMTC/99 - Measurements for the new Millenium, Venice, Italy, .