管卫华;林用满;
1:广东农工商职业技术学院电子与信息工程系
2:华南理工大学电子与信息学院
摘要：发动机噪声源的识别是控制发动机噪声的一项关键技术,传统的办法是用仪器分别测试噪声源,测试办法复杂,仪器多。文中首次提出了,根据发动机的混叠噪声,用盲分离算法可识别出发动机的外部噪声源。用两个试验验证了新办法识别噪声源的有效性,且测试的仪器少。
关键词： 发动机噪声源;;混叠噪声;;盲分离
Abstract: Identification of engine noise
source is a critical technique of controlling engine noise.Traditionally,each
of noise sources is separated to test.These tests are complicate by many
instruments.This paper proposes a new approach to identify engine surface noise
sources.By blind sources separation engine surface noise sources are separated
according to aliasing noise of engine.Experiments have demonstrated this method
efficient to identify engine noise source,and only a few instruments are
necessary.
Keywords: Engine Noise Source;Aliasing
Noise;Blind Separation.
基金项目: 广东省自然科学基金团队研究项目(04205783);; 国家自然科学基金项目(604720067)
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