Digital Signal Processor Implementation of Active Noise Control Systems for Broadband Noise Cancellation in Engine Exhaust Systems
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概要
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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 impluse 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.
- 社団法人応用物理学会の論文
- 2000-08-15
著者
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WU Jian-Da
Department of Vehicle Engineering, Da-Yeh University
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BAI Mingsian
Department of Mechanical Engineering, National Chiao-Tung University
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Wu Jian-da
Department Of Vehicle Engineering And Technology Da-yeh University
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Wu Jian
Department Of Mechanical Engineering Da-yeh University
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Bai Mingsian
Department Of Mechanical Engineering National Chiao-tung University
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