书目名称 | Fundamentals of Differential Beamforming | 编辑 | Jacob Benesty,Jingdong Chen,Chao Pan | 视频video | | 概述 | Provides a systematic study of the fundamental theory and methods of beamforming with DMAs.Includes supplementary material: | 丛书名称 | SpringerBriefs in Electrical and Computer Engineering | 图书封面 |  | 描述 | .This book provides a systematic study of the fundamental theory and methods of beamforming with differential microphone arrays (DMAs), or differential beamforming in short. It begins with a brief overview of differential beamforming and some popularly used DMA beampatterns such as the dipole, cardioid, hypercardioid, and supercardioid, before providing essential background knowledge on orthogonal functions and orthogonal polynomials, which form the basis of differential beamforming. . From a physical perspective, a DMA of a given order is defined as an array that measures the differential acoustic pressure field of that order; such an array has a beampattern in the form of a polynomial whose degree is equal to the DMA order. Therefore, the fundamental and core problem of differential beamforming boils down to the design of beampatterns with orthogonal polynomials. But certain constraints also have to be considered so that the resulting beamformer does not seriously amplify the sensors’ self noise and the mismatches among sensors.. Accordingly, the book subsequently revisits several performance criteria, which can be used to evaluate the performance of the derived differential beam | 出版日期 | Book 2016 | 关键词 | microphone arrays; beampattern design; optimization; directivity factor; white noise gain; orthogonal pol | 版次 | 1 | doi | https://doi.org/10.1007/978-981-10-1046-0 | isbn_softcover | 978-981-10-1045-3 | isbn_ebook | 978-981-10-1046-0Series ISSN 2191-8112 Series E-ISSN 2191-8120 | issn_series | 2191-8112 | copyright | The Author(s) 2016 |
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