Generalized beamforming
نویسندگان
چکیده
منابع مشابه
Aeroacoustic Source Identification Using Generalized Inverse Beamforming
Aeroacoustic source identification poses some challenges to the conventional techniques such as the conventional beamforming. The challenges can be summarized as the distributed nature of the aeroacoustic sources, in coherent or incoherent radiation, with multipole radiation characteristics. In order to cope with these difficulties, the Generalized Inverse Beamforming (GIB) is adopted. This met...
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This paper presents an adaptive beamforming application based on the capture of far-field speech data from a real single speaker in a real meeting room. After the position of a speaker is estimated by a speaker tracking system, we construct a subbanddomain beamformer in generalized sidelobe canceller (GSC) configuration. In contrast to conventional practice, we then optimize the active weight v...
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We propose a new broadband beamformer design technique which produces an optimal receiver beam pattern for any set of field measurements in space and time. The modal subspace decomposition (MSD) technique is based on projecting a desired pattern into the subspace of patterns achievable by a particular set of space-time sampling positions. This projection is the optimal achievable pattern in the...
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Traditional methods for beamforming can be grouped in two families, the time reference beamformer and the spatial reference beamforming. Nevertheless, the increasing demand on receivers for location systems and high bandwidth over frequency selective fading able to properly manage multipath and co-channel interference motivates the need for versatile processing able to cope with both problems. ...
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In this work, we propose an adaptive set-membership constant modulus (SMCM) algorithm with a generalized sidelobe canceler (GSC) structure for blind beamforming. We develop a stochastic gradient (SG) type algorithm based on the concept of SM filtering for adaptive implementation. The filter weights are updated only if the constraint cannot be satisfied. In addition, we also propose an extension...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1977
ISSN: 0001-4966
DOI: 10.1121/1.2015919