Independent scaling of a delay in frequency-domain system identification

Jeroen Strompf, István Kollár, Yves Rolain

Research output: Contribution to journalArticle


In frequency-domain identification of systems with delay, the delay can be scaled independently of the transfer function to which it is associated. Practical examples show that in most situations, the delay is properly scaled with the commonly used scaling. Examples have been provided where independent scaling can be useful to improve numerical conditioning and to enhance identiflability. Algorithms are proposed for these purposes and for system analysis.

Original languageEnglish
Pages (from-to)327-331
Number of pages5
JournalIEEE Transactions on Instrumentation and Measurement
Issue number1
Publication statusPublished - Dec 1 1998


  • Delay estimation
  • Delay systems
  • Frequency-domain analysis
  • Identification
  • Numerical stability
  • Parameter estimation
  • Transfer functions

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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