【摘要】 主动噪声控制是集声学、自适应控制及数字信号处理等技术为一体的高新技术,已成为国内外噪声控制界的研究热点。基于主动噪声控制的Swinbanks多极子系统理论,证明了主动噪声控制技术适合于低频声的理论依据。阐述了决定主动噪声控制效果的决定因素及在车内噪声控制中应用的发展过程,并指出当前研究中需解决的问题和今后的研究方向。更多还原

【Abstract】 Active noise control(ANC)is a new high technology integrated with acoustic,adaptive control and digital signal process and it has become the research focus center of noise control.Based on ANC Swinbanks mutipoles system,the theory foundation for advantage of ANC application for low frequency noise is given.Then the factors to influence ANC are introduced and the development of active automobile cabin noise control is discussed.At last,the problem in ANC and the research trends are pointed out.更多还原