Results 61 to 70 of about 2,236 (212)
On the design of maximally sparse beamforming arrays [PDF]
The problem of designing nonuniformly spaced arrays is formulated as one of constrained optimization in which the cost function is chosen to select the array with the minimum number of elements. The response of the array is controlled by a set of inequality point response constraints.
R.M. Leahy, B.D. Jeffs
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Traditional adaptive beamforming techniques focus solely on optimising the excitation weights of array elements while neglecting the critical influence of element positioning on beamforming performance.
Weinian Li +4 more
doaj +1 more source
Constant beamwidth generalised sidelobe canceller
In this paper, we proposed a constant beamwidth discrete Fourier transform (DFT) beamformer based on the generalised sidelobe canceller (GSC). Broadband signals are decomposed into frequency bins which are grouped into octaves and tapered individually ...
Weiss, Stephan +5 more
core +1 more source
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada +4 more
wiley +1 more source
Here, the authors propose a novel robust adaptive beamforming method, which is robust to both of the covariance matrix mismatch and the steering vector estimation mismatch.
Lei Yu +3 more
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Adapting Deep Learning Phase Detectors for Seismic Array Processing
Abstract Deep learning (DL) has considerably advanced single‐station seismic phase detection, but its integration into seismic array processing remains largely unexplored. We evaluate three strategies for adapting the previously developed TPhaseNet detector for regional phase detection to array data: (a) ensemble detection through stacking of single ...
A. Köhler +3 more
wiley +1 more source
Sparse microphone array design for wideband beamforming
The sparse wideband sensor/microphone array design problem is highly nonlinear and it is traditionally solved by genetic algorithms, simulated annealing or other similar optimization methods. This is an extremely time-consuming process and an optimum solution is not guaranteed.
Matthew B. Hawes, Wei Liu 0001
openaire +2 more sources
Speech Neurophysiology in Realistic Contexts: Big Hype or Big Leap?
Speech neurophysiology is moving from controlled listening tasks to dynamic, socially rich interactions, challenging traditional methods. This shift promises deeper insights into how the brain processes and represents speech in real‐world contexts, while introducing new analytical complexities.
Giovanni M. Di Liberto, Emily Y. J. Ip
wiley +1 more source
Adaptive Re-Weighting Homotopy For Sparse Beamforming
Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
Fernando G. Almeida Neto +3 more
openaire +3 more sources
Fast deconvolved beamforming for arbitrary arrays based on off-grid sparse Bayesian learning [PDF]
The deconvolved beamforming (dCv) improves spatial resolution without expanding the array aperture but fails for the shift-variant beam pattern and the real targets, which are not located on the sampling grids.
Jianli Huang +5 more
doaj +1 more source

