Results 71 to 80 of about 167,695,400 (202)
FPGA-based real-time implementation for direction-of-arrival estimation
The Journal of Engineering, 2017 Direction-of-arrival (DOA) estimation of radio signals is of utmost importance in many commercial and military applications. In this study, the authors propose an efficient field-programmable gate array (FPGA) architecture for implementing a recently ...
Abdulrahman Alhamed +6 more
doaj +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
A Priori-Based Subarray Selection Algorithm for DOA Estimation
Sensors, 2020 A finer direction-of-arrival (DOA) estimation result needs a large and dense array; it may, however, encounter the mutual coupling effect, which degrades the performance of DOA estimation.
Linghao Zeng +2 more
doaj +1 more source
Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection
Advanced Materials, Volume 38, Issue 36, 26 June 2026.Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel +7 more
wiley +1 more source
Hong Kong Journal of Emergency Medicine, Volume 33, Issue 3, June 2026.Abstract Background Out‐of‐hospital cardiac arrests (OHCAs) are an important global health burden, and risk factors for patients with dispatcher‐unrecognized OHCAs have not yet been well investigated. Objectives The purpose of this study was to evaluate the association between multiple‐ambulance dispatches and clinical outcomes in patients with ...
Min Seol Seo +8 more
wiley +1 more source
A Distributed Sensor-based Recursive Framework for DoA Estimation and Geolocation [PDF]
This paper proposes a distributed sensor-based RECursive Subspace and Factor Graph (RECSaFG) framework for direction-of-arrival (DoA) estimation and geolocation of a fast-moving target.
Matsumoto, Tad +7 more
core +1 more source
Efficient method of estimating Direction of Arrival (DOA) in communications systems. [PDF]
, 2021 Masters Degree. University of KwaZulu- Natal, Durban.In wireless communications systems, estimation of Direction of Arrival (DOA) has been used both for military and commercial purposes. The signal whose DOA is being estimated, could be a signal that has
Nxumalo, Bongani Prudence.
core +1 more source
Joint Estimation of DOA and TDOA of Multiple Reflections by Matrix Pencil in Mobile Communications
IEEE Access, 2019 This paper presents the joint estimation of the direction of arrival (DOA) and the time difference of arrival (TDOA) for multipath signals, which is the central issue for mobile communications.
Yu Zheng, Yongzhi Yu
doaj +1 more source
A WIDEBAND MODEL FOR ESTIMATING THE DIRECTION OF ARRIVAL IN THE PHASED ARRAY ANTENNA
Al-Qadisiyah Journal for Engineering Science, 2009 In this paper, a new wideband direction-of-arrival (DOA) estimation method is proposed, related to the real time capability of DOA estimator the complexity estimation of the algorithms is used.
Ehab Abdul-Razaq Husain +1 more
doaj
Satellite Interference Source Direction of Arrival (DOA) Estimation Based on Frequency Domain Covariance Matrix Reconstruction. [PDF]
Sensors (Basel), 2023 Yao J +5 more
europepmc +1 more source