- 會議論文
Feedforward Active Noise Electronic Muffler Based on the H2 and H(subscript ∞) Controller Synthesis
並列摘要
Three active noise control methods on the basis of feedforward H2, H(subscript ∞), and modified H2 optimal model matching principle are proposed. These methods effectively overcome the problem of unstable inverse plant resulted from the inherent nonminimum phase property of the cancellation path. The third method effectively eliminates the high-gain problem of the ordinary H2 and H(subscript ∞) algorithms. The proposed algorithms are implemented by using a digital signal processor. The experimental results obtained by using the H2, H(subscript ∞), modified H2 feedforward techniques show comparable attenuation for stationary noises in a duct as the conventional methods. The proposed methods also have potential in suppressing transient noises that have been the major difficulty to the adaptive methods.
延伸閱讀
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