Adaptive beamforming for array signal processing in aeroacoustic   measurements

doi:10.1121/1.3682041

CORC > 北京大学 > 工学院

	Adaptive beamforming for array signal processing in aeroacoustic measurements
	Huang, Xun ; Bai, Long ; Vinogradov, Igor ; Peers, Edward
刊名	journal of the acoustical society of america
	2012
关键词	acoustic convolution acoustic noise aeroacoustics array signal processing deconvolution microphone arrays PHASED MICROPHONE ARRAY PLASMA ACTUATORS WIND-TUNNEL ALGORITHM OBSERVER
DOI	10.1121/1.3682041
英文摘要	Phased microphone arrays have become an important tool in the localization of noise sources for aeroacoustic applications. In most practical aerospace cases the conventional beamforming algorithm of the delay-and-sum type has been adopted. Conventional beamforming cannot take advantage of knowledge of the noise field, and thus has poorer resolution in the presence of noise and interference. Adaptive beamforming has been used for more than three decades to address these issues and has already achieved various degrees of success in areas of communication and sonar. In this work an adaptive beamforming algorithm designed specifically for aeroacoustic applications is discussed and applied to practical experimental data. It shows that the adaptive beamforming method could save significant amounts of post-processing time for a deconvolution method. For example, the adaptive beamforming method is able to reduce the DAMAS computation time by at least 60% for the practical case considered in this work. Therefore, adaptive beamforming can be considered as a promising signal processing method for aeroacoustic measurements. (C) 2012 Acoustical Society of America. [DOI: 10.1121/1.3682041]; Acoustics; Audiology & Speech-Language Pathology; SCI(E); EI; PubMed; 6; ARTICLE; 3; 2152-2161; 131
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/343454]
专题	工学院
推荐引用方式 GB/T 7714	Huang, Xun,Bai, Long,Vinogradov, Igor,et al. Adaptive beamforming for array signal processing in aeroacoustic measurements[J]. journal of the acoustical society of america,2012.
APA	Huang, Xun,Bai, Long,Vinogradov, Igor,&Peers, Edward.(2012).Adaptive beamforming for array signal processing in aeroacoustic measurements.journal of the acoustical society of america.
MLA	Huang, Xun,et al."Adaptive beamforming for array signal processing in aeroacoustic measurements".journal of the acoustical society of america (2012).