Oscillation amplitude considerations in frequency domain experiments

Research output: Contribution to journalConference articlepeer-review


Issues to consider when setting oscillation amplitudes in frequency-domain experiments are discussed, with particular reference to gradient direction estimators. Three factors which influence the size of the oscillation amplitudes for frequency-domain experiments are discussed. To ensure input feasibility and reduce higher degree term effects, the amplitudes should be set as small as possible. To reduce the noise effects, the amplitudes should be set as large as possible. It may not be possible to set oscillation amplitudes which satisfactorily address all three constraints. This situation tends to arise when experiments are run with the inputs close to a local optimum. For such situations, the priority of these constraints should be feasibility, higher degree terms, and noise effects. Thus, the oscillation amplitude should be set as small as possible so that the inputs remain feasible and higher degree term effects do not dominate the power spectrum values at linear term indicator frequencies.

Original languageEnglish (US)
Pages (from-to)406-410
Number of pages5
JournalWinter Simulation Conference Proceedings
StatePublished - 1989
Externally publishedYes
Event1989 Winter Simulation Conference Proceedings - WSC '89 - Washington, DC, USA
Duration: Dec 4 1989Dec 6 1989

ASJC Scopus subject areas

  • Software
  • Modeling and Simulation
  • Safety, Risk, Reliability and Quality
  • Chemical Health and Safety
  • Applied Mathematics


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