Results 81 to 90 of about 402,558 (283)

Slepian functions and their use in signal estimation and spectral analysis

, 2009
It is a well-known fact that mathematical functions that are timelimited (or spacelimited) cannot be simultaneously bandlimited (in frequency). Yet the finite precision of measurement and computation unavoidably bandlimits our observation and modeling ...
A Albertella, A Amirbekyan, A Hanssen, A Messiah, A Schuster, AD Chave, AR Edmonds, D Slepian, D Slepian, D Slepian, D Slepian, D Slepian, D Slepian, DA Varshalovich, DB Percival, DJ Thomson, DJ Thomson, DJ Wingham, DL Donoho, DR Cox, E Hivon, EN Gilbert, FA Dahlen, FA Dahlen, FJ Simons, FJ Simons, FJ Simons, G Hinshaw, GD Villiers de, HJ Landau, HJ Landau, HJ Landau, I Daubechies, I Daubechies, I Daubechies, I Daubechies, JR Bond, JS Bendat, K Yao, KS Riedel, L Cohen, L Knox, LP Grishchuk, M Tegmark, M Tegmark, MA Wieczorek, MA Wieczorek, MG Hauser, MZ Nashed, N Sneeuw, P Flandrin, P Xu, P Xu, PJE Peebles, RC Aster, RH Jones, S Mallat, S-C Han, SP Oh, TP Bronez, W Freeden, W Freeden, W Menke, WM Kaula, Y Shkolnisky   +64 more
core   +1 more source

Assessing the Sensitivity and the Clinical Impact of the 2023 American College of Rheumatology/EULAR Classification Criteria in Obstetric Antiphospholid Syndrome: Findings From a Multicenter Italian Cohort With a Long‐Term Follow‐Up

Arthritis Care &Research, EarlyView.
Objective The aim of this study was to evaluate the sensitivity of the 2023 American College of Rheumatology (ACR)/EULAR classification criteria for antiphospholipid syndrome (APS) in a real‐world cohort of women diagnosed with primary obstetric APS (oAPS) and to assess their ability to identify patients at risk of future pregnancy complications ...
Francesca Ruffilli, Cecilia Nalli, Francesca Crisafulli, Carlo Garaffoni, Marcello Govoni, Giulia Voltarel, Alba C. Pozzi, Beatrice Maranini, Ettore Silvagni, Alessandra Bortoluzzi, Angela Tincani   +10 more
wiley   +1 more source

A Deep Shrinkage Network for Direction-of-Arrival Estimation with Sparse Prior

Journal of Marine Science and Engineering
Direction-of-arrival (DOA) estimation of underwater multipath signals plays a indispensable role in both military and civilian underwater applications. Despite its importance, accurately estimating DOA under multipath conditions is challenging due to the
Lei Zhou, Shihong Zhou, Yubo Qi, Lixin Wu, Yannick Benezeth   +4 more
doaj   +1 more source

Spatial Spectrum-Based Imaging for UWB Through-the-Wall MIMO Arrays

International Journal of Antennas and Propagation, 2014
To keep the system complexity at a reasonable level and conform to the propagation demands, MIMO arrays are usually sparse in through-the-wall applications, which results in corrupted and gapped data.
Biying Lu, Xin Sun, Yang Zhao, Zhimin Zhou   +3 more
doaj   +1 more source

Mucocutaneous disease activity and damage accrual in systemic lupus erythematosus: analyses from the Asia‐Pacific Lupus Collaboration longitudinal cohort study

Arthritis Care &Research, Accepted Article.
Objective This research article aims to describe the prevalence, associations and health‐related quality‐of‐life (HRQoL) impact of mucocutaneous features of SLE. Methods Data from the Asia‐Pacific Lupus Collaboration cohort were analysed (2013‐2021). Mucocutaneous activity (MC‐A) items were rash, alopecia and mucosal ulcers; defined by the SLEDAI‐2K ...
Amanda M Saracino, Yanjie Hao, Dylan Hansen, Yi‐Hsing Chen, Alberta Hoi, Vera Golder, Jiacai Cho, Aisha Lateef, Worawit Louthrenoo, Laniyati Hamijoyo, Shue Fen Luo, Yeong‐Jian Jan Wu, Sandra Navarra, Leonid Zamora, Chak Sing Lau, Shirley Chan, Zhanguo Li, Hai‐hong Yao, Sargunan Sockalingam, BMDB Basnayake, Yasuhiro Katsumata, Masayoshi Harigai, Zhuoli Zhang, Jun Kikuchi, Yuko Kaneko, Tsutomu Takeuchi, Madelynn Chan, Sang‐Cheol Bae, Fiona Goldblatt, Sean O'Neill, Geraldine Hassett, Kristine(Pek Ling) Ng, Nicola Tugnet, Mark Sapsford, Yih Jia Poh, Michael Tee, Cherica Tee, Naoaki Ohkubo, Yoshiya Tanaka, Rangi Kandane‐Rathnayake, Eric Morand, Shereen Oon, Mandana Nikpour   +42 more
wiley   +1 more source

Blind Channel Estimation for FBMC/OQAM Systems Based on Subspace Approach

Information, 2018
The conventional channel estimation schemes for filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) systems are mainly based on preamble methods.
Han Wang, Jianqing Liao, Lingwei Xu, Xianpeng Wang   +3 more
doaj   +1 more source

Spatial interpolation of high-frequency monitoring data

, 2009
Climate modelers generally require meteorological information on regular grids, but monitoring stations are, in practice, sited irregularly. Thus, there is a need to produce public data records that interpolate available data to a high density grid ...
Stein, Michael L.
core   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Analysis and verification on one-dimensional location performance of shortwave single station

Dianxin kexue, 2018
With the low sensitivity of beam field and noise-sensitive of high resolution spatial spectrum algorithm,the low location precision under the complex electromagnetic environment becomes a severe problem.The Capon and Root-MUSIC (CRMU) joint algorithm was
Ting LI
doaj   +2 more sources

Remote estimation of rice LAI based on Fourier spectrum texture from UAV image

Plant Methods, 2019
Background The accurate estimation of rice LAI is particularly important to monitor rice growth status. Remote sensing, as a non-destructive measurement technology, has been proved to be useful for estimating vegetation growth parameters, especially at ...
Bo Duan, Yating Liu, Yan Gong, Yi Peng, Xianting Wu, Renshan Zhu, Shenghui Fang   +6 more
doaj   +1 more source