Title

Active Noise Control Based on the H2 and H(subscript ∞) Feedforward Model Matching Approach

Translated Titles

以H2與H(下標 ∞)前饋模式匹配法進行主動噪音控制

DOI

10.30028/CSSVANNUAL.199506.0179

Authors

白明憲(Ming-Sian Bai);陳興璞(Hsing-Pu Chen)

Key Words

active noise control ; H2 ; H(subscript ∞) ; model matching

PublicationName

中華民國振動與噪音工程學會論文集

Volume or Term/Year and Month of Publication

1995(1995 / 06 / 24)

Page #

179 - 188

Content Language

英文

Chinese Abstract

非最小相位(NMP)問題通常造成傳統主動噪音控制法失效。本研究提出兩種以H2及H(下標 ∞)前饋模式匹配原理為基礎之控制法。這些方法能有效解決因第二控制路徑NMP問題所造成的逆場不穩定的困難。數值模擬結果顯示此二法比傳統方法較能抑制管路中之寬頻隨機噪音。

English Abstract

Nonminimum (NMP) phase problem is in general the cause of failure of the conventional active noise control approaches in suppressing random noises. This study proposes two novel techniques based on feedforward H2 and H(subscript ∞) optimal model matching principle. These methods effectively overcome the unstable inverse plant problem resulted from the inherent nonminimum phase property of the secondary path. The numerical results obtained from a broadband random noise and an impulse in a duct show significant attenuation over conventional methods.

Topic Category 基礎與應用科學 > 物理
工程學 > 市政與環境工程