@inproceedings{4441389a976f4620b20e20df71e0bde7,
title = "A directionaly constrained distortionless multistage LCMV beamformer",
abstract = "In this paper, we generalize the recently proposed multistage minimum variance distortionless response beamformer to all distortionless linearly constrained minimum variance (LCMV) beamformers with directional constraints. Given Nc constraints and an M-element microphone array, we propose to divide this array into K-element microphone sub-arrays (Nc ≤ K ≤ M) on which LCMV beamforming is performed. The K-element outputs are then used as new sensor inputs, and the operation is performed recursively until there is only one output at the last stage. The multistage LCMV beamformer satisfies all the imposed directional constraints but with reduced complexity compared to the conventional one. Simulation results show that in the presence of diffuse noise, the multistage LCMV beamformer achieves higher white noise gain than that of the classic LCMV beamformer, although the directivity factor is slightly decreased.",
keywords = "Beamforming, Linearly constrained minimum variance, Microphone arrays, Multistage",
author = "Daniel Wolff and Yaakov Buchris and Israel Cohen",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 15th International Workshop on Acoustic Signal Enhancement, IWAENC 2016 ; Conference date: 13-09-2016 Through 16-09-2016",
year = "2016",
month = oct,
day = "19",
doi = "10.1109/IWAENC.2016.7602887",
language = "الإنجليزيّة",
series = "2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016",
booktitle = "2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016",
}