Secondary source near-field error acquisition method suitable for pipeline active noise reduction

The invention discloses a secondary source near-field error acquisition method suitable for pipeline active noise reduction. When the active noise reduction system in the rectangular pipeline is compactly arranged (the distance from the secondary source to the error microphone is smaller than three...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN BAICUN, TAO JIANCHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES
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