Behavior of adaptive algorithms in active noise control systems with moving noise sources

Acoustical Science and Technology

Akira Omoto¹  Daisuke Morie¹  Kyoji Fujiwara¹ 

[1] Kyushu Institute of Design

关键词: Active noise control;    Adaptive algorithm;    Moving noise source;   

DOI  :  10.1250/ast.23.84

学科分类：声学和超声波

来源: Acoustical Society of Japan

【 摘 要 】

References(12)Cited-By(4)Adaptive algorithms such as LMS are often used in active noise control systems to update the output of secondary sources. If we apply the active scheme to traffic noise control, it is important to understand the behavior of the adaptive algorithm in response to significant changes of the primary noise due to movement of the noise source. This paper describes preliminary investigations of the tracking ability of adaptive algorithms whilst the noise source is moving. The well-known filtered-x LMS, NLMS and RLS algorithms are used in the simulations. In addition, experiments are conducted to verify the results of the simulations.

【 授权许可】

Unknown