Results 51 to 60 of about 2,583 (175)
EURASIP Journal on Wireless Communications and Networking, 2019 In the radar array signal processing direction of arrival (DOA), the estimation of weak non-stationary signal is an important and difficult problem when both strong and weak signals are coexisting particularly because the weak non-stationary signals are ...
Shuai Shao +5 more
doaj +1 more source
Spatial Localization of Electromagnetic Radiation Sources by Cascade Neural Network Model with Noise Reduction [PDF]
Radioengineering, 2023 In this paper, the Direction of Arrival - DoA estimation for two mobile sources was performed by using the Single Multilayer Perceptron (MLP) neural network model (SMLP-DoA) and the Cascade MLP model(CMLP).
M. Ilic, Z. Stankovic, N. Males-Ilic
doaj
CAAI Transactions on Intelligence Technology, EarlyView.ABSTRACT Load‐frequency control (LFC) comprises a primary process in interconnected electrical power systems, playing a critical role in maintaining the stability and reliability of the electrical grid. It is of paramount importance that the designed controller functions in an optimal manner, particularly with regard to the compression of area ...
Bora Çavdar +2 more
wiley +1 more source
Direction-of-Arrival Estimation of Virtual Array Signals Based on Doppler Effect
International Journal of Distributed Sensor Networks, 2015 The estimation accuracy of direction-of-departure (DOD) and direction-of-arrival (DOA) is reduced because of Doppler shifts caused by the high-speed moving sources.
Feng Zhao, Xia Hao, Hongbin Chen
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Direction-of-Arrival Estimation Based on Joint Sparsity
Sensors, 2011 We present a DOA estimation algorithm, called Joint-Sparse DOA to address the problem of Direction-of-Arrival (DOA) estimation using sensor arrays. Firstly, DOA estimation is cast as the joint-sparse recovery problem.
Zhitao Huang, Yiyu Zhou, Junhua Wang
doaj +1 more source
Political Partisanship and State‐Level Bank Efficiency
Financial Review, EarlyView.ABSTRACT We examine the relationship between political partisanship and commercial bank efficiency in the United States from 1972 to 2020, assessing the persistent influence of political affiliations at the state and District of Columbia levels. Bank efficiency scores are estimated using a double‐bootstrap approach, and the analysis is conducted within
Jeremy Eng‐Tuck Cheah +3 more
wiley +1 more source
An Active Beam‐Reconfigurable Retrodirective Array
Nanophotonics, Volume 15, Issue 13, 13 July 2026.The proposed beam‐reconfigurable retrodirective array not only enables retroreflection toward the signal source but also achieves flexible beam steering via a tunable reflection plate, offering a viable solution for real‐time multipoint communication and multitarget wireless power transfer.
Wen Yue Wei +5 more
wiley +1 more source
Natural Sciences, Volume 6, Issue 3, July 2026.The mechanisms driving the progression of NAFLD through NASH, cirrhosis and HCC are unclear. In this study, we have comprehensively analyzed multi‐cohort transcriptomics data of the whole NAFLD spectrum to unlock the paradigm changes in gene expression and its regulation.
Anusha Patodia +5 more
wiley +1 more source
Headache: The Journal of Head and Face Pain, Volume 66, Issue 7, Page 1607-1616, July/August 2026.Plain Language Summary Migraine with aura can mimic a stroke, making diagnosis difficult and sometimes leading to unnecessary treatment in the acute setting. We found that some patients with migraine with aura show characteristic changes on brain perfusion CT scans, particularly in men and those with speech symptoms, which can be better detected using ...
Lucía Gómez Martín de la Escalera +8 more
wiley +1 more source
Comparison of Direction of Arrival (DOA) Estimation Techniques for Closely Spaced Targets [PDF]
International Journal of Future Computer and Communication, 2013 This paper deals with different beamforming techniques for DOA estimation. High resolution techniques such as Multiple Signal Classification (MUSIC) and Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) which are subspace based techniques are also discussed. Finally, further resolution improvement is achieved through the use
Nauman Anwar Baig, Mohammad Bilal Malik
openaire +1 more source