Results 191 to 200 of about 9,393 (232)
Pharmacological modulation of directed network communication and neural hubs in action-effect integration. [PDF]
Int J NeuropsychopharmacolMayer J +5 more
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Blind Interference Suppression with Uncalibrated Phased-Array Processing. [PDF]
Sensors (Basel)Lusk LO, Gaeddert JD.
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International Journal of Adaptive Control and Signal Processing, 1989
AbstractAn adaptive beamformer is a system devised to isolate a desired signal from interfering signals which are spatially disparate but which occupy the same spectral band. Traditionally these systems have been employed primarily in sonar and radar.
Allan O. Steinhardt, Barry D. Van Veen
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AbstractAn adaptive beamformer is a system devised to isolate a desired signal from interfering signals which are spatially disparate but which occupy the same spectral band. Traditionally these systems have been employed primarily in sonar and radar.
Allan O. Steinhardt, Barry D. Van Veen
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IEEE Transactions on Acoustics, Speech, and Signal Processing, 1987
Adaptive beamforming algorithms can be extremely sensitive to slight errors in array characteristics. Errors which are uncorrelated from sensor to sensor pass through the beamformer like uncorrelated or spatially white noise. Hence, gain against white noise is a measure of robustness.
H. Cox, R. Zeskind, M. Owen
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Adaptive beamforming algorithms can be extremely sensitive to slight errors in array characteristics. Errors which are uncorrelated from sensor to sensor pass through the beamformer like uncorrelated or spatially white noise. Hence, gain against white noise is a measure of robustness.
H. Cox, R. Zeskind, M. Owen
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Adaptive subarrays beamforming
2013 MTS/IEEE OCEANS - Bergen, 2013Rank reduction prior to adaptive beamforming is required for large arrays in order to reduce the required number of samples. It is often processed by a conventional beamforming applied on a number of subarrays partitioning the whole array. The subarrays beams are then adaptively recombined by a second stage of beamforming.
Gilles Gaonach, Marie Gehant
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Journal of Medical Ultrasonics, 2017
A number of studies aimed at improvement of ultrasound image quality, such as spatial resolution and contrast, have been conducted. Apodization is known as an important factor that determines image quality. However, in the case of amplitude and phase estimation (APES) beamforming, a kind of adaptive beamformer that has been employed in medical ...
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A number of studies aimed at improvement of ultrasound image quality, such as spatial resolution and contrast, have been conducted. Apodization is known as an important factor that determines image quality. However, in the case of amplitude and phase estimation (APES) beamforming, a kind of adaptive beamformer that has been employed in medical ...
openaire +2 more sources
Adaptive-adaptive subarray narrowband beamforming
IEEE International Conference on Acoustics Speech and Signal Processing, 1993A two-stage adaptive narrowband beamformer is introduced. Adaptive beamformers give high-resolution angle-of-arrival estimates, but at considerable computational cost. To reduce the computational cost, N. Owsley and D. Abraham (1989) have introduced a two-stage beamformer-conventional first-stage, adaptive second-stage-which gives near full adaptive ...
J.A. Nuttall, P. Willett
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