کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6959587 1451960 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of the average performance of the multi-channel Wiener filter for distributed microphone arrays using statistical room acoustics
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر پردازش سیگنال
پیش نمایش صفحه اول مقاله
Analysis of the average performance of the multi-channel Wiener filter for distributed microphone arrays using statistical room acoustics
چکیده انگلیسی
In this paper, we propose to use the statistical properties of the acoustical transfer functions (ATFs) between the desired source and the microphones to derive analytical expressions for the spatially averaged performance measures (output SNR, noise reduction, speech distortion) of the MWF, assuming a homogeneous and known noise field. In addition, we show that although the spatially averaged performance measures do not express the performance of the MWF for a given position of the source and/or the microphones, they can be used to derive approximate analytical expressions for the average performance of the MWF for a given position of the microphones. Experimental results show that the proposed analytical expressions can be used to easily compare the performance of different microphone arrays, e.g. in an acoustic sensor network, without having to measure or numerically simulate a large number of ATFs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Signal Processing - Volume 107, February 2015, Pages 96-108
نویسندگان
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