National Changhua University of Education Institutional Repository : Item 987654321/18316

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NCUEIR > College of Technology > vr > Periodical Articles > Item 987654321/18316

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/18316

Title:	Digital Signal Processor Implementation of Active Noise Control Systems for Broadband Noise Cancellation in Engine Exhaust Systems
Authors:	Wu, Jian-Da;Bai, Mingsian R.
Contributors:	車輛科技研究所
Keywords:	Acoustics;Active noise control;Spatially feedforward;Exhaust system
Date:	2000-08
Issue Date:	2014-04-29T07:25:44Z
Publisher:	The Japan Society of Applied Physics
Abstract:	This paper describes the principle and application of broadband active noise control (ANC) for engine exhaust systems using a spatially feedforward structure. The algorithm of the proposed controller is obtained from previous work by Roure (1985), Munjal and Eriksson (1988), Hong and Bernstein (1998), and there exist some conclusions for this structure. The self-adaptive broadband controller is discussed and implemented on a digital signal processor (DSP), using finite impulse response (FIR) and infinite impulse response (IIR) filters. Experiments were carried out to evaluate the proposed system for reducing the noise under different engine operating conditions. The experimental results indicate that the ANC system is effective in reducing the broadband noise for engine exhaust systems using the spatially feedforward structure.
Relation:	Japanese Journal of Applied Physics, 39: 4982-4986
Appears in Collections:	[vr] Periodical Articles

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