Low velocity impact localization system using FBG array and MVDR beamforming algorithm
نویسندگان
چکیده
منابع مشابه
On the Impact of Quantization on Binaural MVDR Beamforming
Multi-microphone noise reduction algorithms in binaural hearing aids which cooperate through a wireless link have the potential to become of great importance in future hearing aid systems. However, limited transmission capacity of such devices necessitates the data compression of signals transmitted from one hearing aid to the contralateral one. In this paper we study the impact of quantization...
متن کاملImproved MVDR Beamforming Using Single-Channel Mask Prediction Networks
Recent studies on multi-microphone speech databases indicate that it is beneficial to perform beamforming to improve speech recognition accuracies, especially when there is a high level of background noise. Minimum variance distortionless response (MVDR) beamforming is an important beamforming method that performs quite well for speech recognition purposes especially if the steering vector is k...
متن کاملDistributed MVDR Beamforming for (Wireless) Microphone Networks Using Message Passing
In this paper we present a distributed algorithm for MVDR beamforming which is based on message passing. The message-passing algorithm performs generalized linear-coordinate descent (GLiCD) operations to exchange messages between neighboring microphone nodes, which converges increasingly fast as the noise correlation matrix becomes more and more diagonal. The algorithm makes use of a trade-off ...
متن کاملEigenvalue Beamforming using a Multi-rank MVDR Beamformer
We derive multi-rank generalizations of the MVDR beamformer to separate an unknown signal of interest in the presence of interference and noise. The spatial signature of the signal is assumed to lie in a known linear subspace, but the orientation of the signal in that subspace is otherwise unknown. The unknown orientation may be fixed for a sequence of experimental realizations, in which case t...
متن کاملSystolic MVDR Beamforming with Inverse Updating
In this report, a stable alternative is described for the `standard' systolic MVDR beamforming algorithm of McWhirter and Shepherd, which is known to su er from numerical instability. The alternative algorithm is similar to covariance-type recursive least squares algorithms, and is therefore readily implemented on an RLS systolic array.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Photonic Sensors
سال: 2015
ISSN: 1674-9251,2190-7439
DOI: 10.1007/s13320-015-0271-y