| 运七飞机舱内噪声主动控制实验研究 |
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| 引用本文： | 李江红,黎中伟,任辉,吴亚峰,何力.运七飞机舱内噪声主动控制实验研究[J].航空学报,1997,18(5):627-628. |
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| 作者姓名： | 李江红 黎中伟 任辉 吴亚峰 何力 |
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| 作者单位： | 西北工业大学数据处理中心, 西安, 710072 |
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| 摘 要： | 进行了主动噪声控制技术在运七飞机上的应用研究。在大量前期实验和算法分析的基础上，以实验方法进行了源声场及次级声场性能的分析；系统稳定性分析；分析了频率漂移对系统的影响，及收敛因子与系统的优化。最后进行了飞行状态下的噪声控制实验。结果表明本方法是可行的。
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| 关 键 词： | 噪声主动控制 源声场 次级声场 |
| 收稿时间： | 1997-01-15 |
| 修稿时间： | 1997-04-15 |
EXPERIMENTAL STUDY ON THE ACTIVE NOISE CONTROL IN THE CABIN OF Y 7 |
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| Li Jianghong,Li Zhongwei,Ren Hui,Wu Yafeng,He Li.EXPERIMENTAL STUDY ON THE ACTIVE NOISE CONTROL IN THE CABIN OF Y 7[J].Acta Aeronautica et Astronautica Sinica,1997,18(5):627-628. |
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| Authors: | Li Jianghong Li Zhongwei Ren Hui Wu Yafeng He Li |
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| Institution: | Digital Signal Processing Centre, Northwestern Polytechnical University, Xi'an, 710072 |
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| Abstract: | Experimental investigation is performed for cabin noise of Y 7 airplane, in which an active noise control technique is employed. Based on the preceding experiments and theoretical analyses, the ability of source sound field and second sound field, the stability of system, the influence of shift of frequency, and the balance between the system and convergent factor are analyzed using experiment. At last, an experiment is achieved in the state of flying. The results show that this method is efficient. |
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| Keywords: | active noise control source sound field second sound field |
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