Results 61 to 70 of about 402,558 (283)

Efficient 2D-DOA Estimation Based on Triple Attention Mechanism for L-Shaped Array

Sensors
Accurate direction-of-arrival (DOA) estimation is crucial to a variety of applications, including wireless communications, radar systems, and sensor arrays.
Yonghong Zhao, Xiumei Fan, Jisong Liu, Yuxing Li, Lyulong Yao, Junlong Wang   +5 more
doaj   +1 more source

A quasi-diagonal approach to the estimation of Lyapunov spectra for spatio-temporal systems from multivariate time series

, 2000
We describe methods of estimating the entire Lyapunov spectrum of a spatially extended system from multivariate time-series observations. Provided that the coupling in the system is short range, the Jacobian has a banded structure and can be estimated ...
C. Beck, D. Keeler, D. Ruelle, D. Ruelle, H. Kantz, H. Leung, H. Whitney, H.F. von Bremen, I. Waller, J. Crutchfield, J. Stark, J.-P. Eckmann, K. Geist, K. Kaneko, K. Kaneko, K. Kaneko, L. Cao, M.J. Bünner, M.R. Muldoon, N. Parekh, P. Collet, P. Poggi, P. Rohani, R. Carretero-González, R. Carretero-González, R. Carretero-González, S. Lepri, S. Ørstavik, S. Ørstavik, Y. Braiman   +29 more
core   +1 more source

Functional and Structural Evidence of Neurofluid Circuit Aberrations in Huntington Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Disrupted neurofluid regulation may contribute to neurodegeneration in Huntington disease (HD). Because neurofluid pathways influence waste clearance, inflammation, and the distribution of central nervous system (CNS)–delivered therapeutics, understanding their dysfunction is increasingly important as targeted treatments emerge.
Kilian Hett, Abigail Dubois, Melanie Leguizamon, Alexander Song, Paula Trujillo, Colin D. McKnight, Ciaran M. Considine, Manus J. Donahue, Daniel O. Claassen   +8 more
wiley   +1 more source

Channel estimation based on the PSS-MUSIC for millimeter-wave MIMO systems equipped with co-prime arrays

EURASIP Journal on Wireless Communications and Networking, 2020
The millimeter-wave channel estimation problem can be solved by estimating the path directions and the path gains. The previous schemes are nearly all based on the uniform linear arrays (ULAs).
Shufeng Li, Guangjing Cao, Libiao Jin, Hongda Wu   +3 more
doaj   +1 more source

Posterior Cortical Atrophy in the Asia‐Pacific: A Report From the PCA Asian Workgroup

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Posterior Cortical Atrophy (PCA) is a distinct dementia syndrome primarily affecting spatial abilities and visual processing. It is associated with degeneration in the posterior part of the brain. PCA is subclassified into PCA‐pure and PCA‐plus syndromes based on consensus criteria.
Yuttachai Likitjaroen, Ya‐Ting Chang, Levinia Lim, Pai‐Yi Chiu, Jung‐Lung Hsu, SangYun Kim, Wataru Narita, Na Young Ryoo, Kyoko Suzuki, Nagaendran Kandiah, Sebastian Crutch, Ming‐Chyi Pai   +11 more
wiley   +1 more source

Spatial spectrum based blind spectrum sensing for multi-antenna cognitive radio system

Tongxin xuebao, 2015
State-of-the-art sensing methods only exploit three dimensions of the spectrum space:frequency，time and space whereas the angle dimension has not been exploited well enough for opportunistic spectrum access.Motivated by this，the authors apply angle of ...
Chang LIU, SajjadAli Syed, Rui ZHANG, Si-ying LI, Jie WANG, Ming-lu JIN   +5 more
doaj   +2 more sources

Multi-Detector Multi-Component spectral matching and applications for CMB data analysis

, 2002
We present a new method for analyzing multi--detector maps containing contributions from several components. Our method, based on matching the data to a model in the spectral domain, permits to estimate jointly the spatial power spectra of the components
Baccigalupi, Bennett, Benoît, Benoît, Bersanelli, Bouchet, Cardoso, de Bernardis, Delabrouille, Dempster, Funaro, G. Patanchon, Hanany, Hobson, J. Delabrouille, J.-F. Cardoso, Lamarre, Luenberger, Maino, Nuzillard, Pham, Snoussi, Tegmark, Tegmark, Zaldarriaga   +24 more
core   +3 more sources

Paramagnetic Rim Lesions Are Associated With Trans‐Synaptic Degeneration of the Visual Pathway in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Retrograde trans‐synaptic degeneration (rTSD) from posterior visual pathway lesions in multiple sclerosis (MS) is characterized by hemi‐macular ganglion cell‐inner plexiform layer (GCIPL) thinning and contralateral visual field loss.
Abdul Jaber Tayem, Angel Liu, Sargis Manukyan, Mustafa Subhi, Elaina Luskin, Bryan Quah, Sreekanth Madhusoodhanan Nair, Arzu C. Has Silemek, Gabriela Zabala, Yujie Cui, Laura Locke, Paula Barreras, Marwa Kaisey, Vinicius Calsavara, Daniel S. Reich, Nancy L. Sicotte, Pascal Sati, Omar Al‐Louzi   +17 more
wiley   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

A Capon-Like Spatial Spectrum Estimator For Correlated Sources

, 2004
Publication in the conference proceedings of EUSIPCO, Viena, Austria ...
Abrahamsson, Richard, Jakobsson, Andreas, Stoica, Petre   +2 more
openaire   +1 more source