Design of robust superdirective arrays with a tunable tradeoff between directivity and frequency-invariance
Frequency-invariant beam patterns are often required by systems using an array of sensors
to process broadband signals. If the spatial aperture is shorter than the involved …
to process broadband signals. If the spatial aperture is shorter than the involved …
A stochastic approach to the synthesis of a robust frequency-invariant filter-and-sum beamformer
Frequency-invariant beam patterns (FIBPs) are often required by systems using an array of
sensors to process broadband signals. Although several methods have been proposed to …
sensors to process broadband signals. Although several methods have been proposed to …
A class of Pareto optimal binaural beamformers
The objective of binaural multi-microphone speech enhancement algorithms can be viewed
as a multi-criteria design problem as there are several requirements to be met. The objective …
as a multi-criteria design problem as there are several requirements to be met. The objective …
[PDF][PDF] Particle filtering methods for acoustic source localisation and tracking
EA Lehmann - 2004 - researchgate.net
The task of acoustic source tracking plays an important role in many practical speech
acquisition systems. This research presents an extensive study of sequential Monte Carlo …
acquisition systems. This research presents an extensive study of sequential Monte Carlo …
Distributed acoustic beamforming with blockchain protection
Q Wang, S Guo, KFC Yiu - IEEE Transactions on Industrial …, 2020 - ieeexplore.ieee.org
Speech is a natural user interface for the Internet of Things system. However, the presence
of noise affects severely the performance of such system. With the deployment of smart …
of noise affects severely the performance of such system. With the deployment of smart …
Time-domain frequency-invariant beampattern synthesis via alternating direction method of multipliers
This paper addresses time-domain frequency-invariant beampattern synthesis under
multiple constraints. Mainlobe spatial response variation is introduced to characterize the …
multiple constraints. Mainlobe spatial response variation is introduced to characterize the …
Designing superdirective microphone arrays with a frequency-invariant beam pattern
S Repetto, A Trucco - IEEE Sensors Journal, 2006 - ieeexplore.ieee.org
Frequency-invariant beam patterns are often required in systems using an array of sensors
to process broadband signals. Although several methods have been proposed to design a …
to process broadband signals. Although several methods have been proposed to design a …
On the indoor beamformer design with reverberation
Beamforming remains to be an important technique for signal enhancement. For
applications in open space, the transfer function describing waves propagation has an …
applications in open space, the transfer function describing waves propagation has an …
Method and system for beamforming using a microphone array
CKF Yiu - US Patent 9,049,503, 2015 - Google Patents
A system (10) for beamforming using a microphone array, the system (10) comprising: a
beamformer consisting of two parallel adaptive filters (12, 13), a first adaptive filter (12) …
beamformer consisting of two parallel adaptive filters (12, 13), a first adaptive filter (12) …
Performance limit of broadband beamformer designs in space and frequency
ZG Feng, KFC Yiu, SE Nordholm - Journal of Optimization Theory and …, 2015 - Springer
The design problem of broadband beamformers is to choose the coefficients of the filters
such that the difference between the actual spatial directivity pattern and a desired spatial …
such that the difference between the actual spatial directivity pattern and a desired spatial …