New direct adaptive active noise control algorithms in case of uncertain secondary path dynamics

Toshikazu Kouno, Hiromitsu Ohmori, Akira Sano

Research output: Contribution to journalConference article

6 Citations (Scopus)


Almost all adaptive feedforward control algorithms for active noise control require a precise model of the secondary path dynamics from the control loudspeaker to the error and reference microphones. This paper is concerned with new direct adaptive algorithms which will be applicable even when the secondary path dynamics are uncertain or unknown. In the first approach, the control algorithm consists of a robust adaptive feedforward control algorithm and robust feedback control scheme permitting bounded uncertainty in the nominal secondary path model. The second one is a fully direct adaptive feedforward control algorithm which is effective in a case when all of the path dynamics are uncertain. Simulation and experimental results validate the effectiveness of the proposed algorithms.

Original languageEnglish
Pages (from-to)1767-1772
Number of pages6
JournalProceedings of the American Control Conference
Publication statusPublished - 2002 Jan 1
Event2002 American Control Conference - Anchorage, AK, United States
Duration: 2002 May 82002 May 10


ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this