Results 41 to 50 of about 2,523,034 (280)
Tensor-Based Reduced-Dimension MUSIC Method for Parameter Estimation in Monostatic FDA-MIMO Radar
Remote Sensing, 2021 Frequency diverse array (FDA) radar has attracted much attention due to the angle and range dependence of the beam pattern. Multiple-input-multiple-output (MIMO) radar has high degrees of freedom (DOF) and spatial resolution. The FDA-MIMO radar, a hybrid
Tengxian Xu +4 more
doaj +1 more source
Direction Finding for Bistatic MIMO Radar with Uniform Circular Array
International Journal of Antennas and Propagation, 2013 A method of direction of arrival (DOA) and direction of departure (DOD) angle estimation based on polynomial rooting for bistatic multiple-input multiple-output (MIMO) radar with uniform circular array (UCA) configuration is proposed in this paper.
Cao Yunhe +3 more
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Direction of arrival estimation based on modified fast off‐grid L1‐SVD
Electronics Letters, 2022 This paper proposes a modified fast off‐grid L1‐SVD (M‐FOGL1SVD) method for direction of arrival (DOA) estimation. Unlike FOGL1SVD, after obtaining the positions of the nonzero rows of the signal sources, the off‐grid overcomplete basis matrix is used to
Xiangjun Xu +4 more
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Steering Acoustic Intensity Estimator Using a Single Acoustic Vector Hydrophone
Journal of Sensors, 2018 Azimuth angle estimation using a single vector hydrophone is a well-known problem in underwater acoustics. In the presence of multiple sources, a conventional complex acoustic intensity estimator (CAIE) cannot distinguish the azimuth angle of each source.
Guangpu Zhang, Ce Zheng, Wang Sheng Lin
openaire +2 more sources
Degradation mechanism of the von Willebrand factor A2 domain by nattokinase
FEBS Letters, EarlyView.Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto +3 more
wiley +1 more source
Matched direction detectors and estimators for array processing with subspace steering vector uncertainties [PDF]
, 2005 In this paper, we consider the problem of estimating and detecting a signal whose associated spatial signature is known to lie in a given linear subspace but whose coordinates in this subspace are otherwise unknown, in the presence of subspace ...
Besson, Olivier +2 more
core
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source
High Performance Robust Adaptive Beamforming in the Presence of Array Imperfections
International Journal of Antennas and Propagation, 2016 A high performance robust beamforming scheme is proposed to combat model mismatch. Our method lies in the novel construction of interference-plus-noise (IPN) covariance matrix. The IPN covariance matrix consists of two parts.
Wenxing Li +3 more
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A robust beamforming algorithm based on steering vector mismatch
Xi'an Gongcheng Daxue xuebao, 2021 A robust beamforming algorithm of particle swarm support vector machine is proposed, which can effectively overcome the influence of steering vector mismatch caused by non-ideal factors such as the array element position disturbance and the arrival angle
Lin CUI, Yixin ZHANG, Yameng JIAO
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Spatial aliasing for efficient direction-of-arrival estimation based on steering vector reconstruction [PDF]
EURASIP Journal on Advances in Signal Processing, 2016 A new technique is proposed to reduce the computational complexity of the multiple signal classification (MUSIC) algorithm for direction-of-arrival (DOA) estimate using a uniform linear array (ULA). The steering vector of the ULA is reconstructed as the Kronecker product of two other steering vectors, and a new cost function with spatial aliasing at ...
Fenggang Yan +4 more
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