摘要
对于封闭空间有源噪声控制,本文研究了在次级声源布放确定的情况下,如何选择误差传声器的数目及位置以取得最大降噪量的问题.理论分析及仿真结果表明:误差传声器布放准则与次级声源布放准则类似.同时,本文提出误差信号内插法,以减少误差传声器数目,提高降噪量.
It is of significant importance for adaptive active noise control within enclosed space to determine appropriate number and locations for error sensors. In this paper, the problem of optimum arrangement of error sensors is investigated for achieving maximum noise reduction under condition that the secondary source arrangement has been specified. It is shown by theoretical study and computer simulation results that the criterion of the errors sensor arrangement is similar to that of the sencondary source arrangement. Then,in order to keep maximum noise reduction and minimum number of error sensors,an approach for error signal interpolation is proposed.
出处
《声学学报》
EI
CSCD
北大核心
1993年第5期357-366,共10页
Acta Acustica
