Results 61 to 70 of about 2,583 (175)

Improved CPD based DOA estimation of nested array

Dianxin kexue, 2021
In order to avoid searching the peak value in space domain, when estimating nested array’s the direction of direction of arrival(DOA), the canonical polyadic decomposition(CPD) was applied into the nested array, namely using the one time singular value ...
Sibei CHENG, Xiao LUO, Bochou JIANG, Yuting WANG, Huanyu WU   +4 more
doaj   +2 more sources

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, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Association between multiple‐ambulance dispatches and clinical outcomes for patients with dispatcher‐unrecognized out‐of‐hospital cardiac arrests

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, Ki Hong Kim, Tae Han Kim, Jeong Ho Park, Joo Jeong, Young Sun Ro, Ki Jeong Hong, Kyoung Jun Song, Sang Do Shin   +8 more
wiley   +1 more source

Adaptive Based Beamforming for Direction-of- Arrival (DOA) Estimation

CVR Journal of Science & Technology, 2015
Nowadays mobile users require increased coverage, quality of service and capacity in wireless communications. By using adaptive antennas at both transmitter and receiver in wireless communication, we can easily reach the required improvement. In this paper Adaptive Antenna plays a major role to improve the performance of wireless communication systems.
openaire   +2 more sources

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, Nizar Tayem, Nizar Tayem, Tariq Alshawi, Saleh Alshebeili, Abdullah Alsuwailem, Ahmed Hussain   +6 more
doaj   +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, Guanghua Zhang, Chongzhao Han   +2 more
doaj   +1 more source

GPUMDkit: A User‐Friendly Toolkit for GPUMD and NEP

Materials Genome Engineering Advances, Volume 4, Issue 2, June 2026.
GPUMDkit is a comprehensive and user‐friendly toolkit for GPUMD and NEP programs, integrating format conversion, structure sampling, property calculation, and visualization into a unified interface, substantially lowering the barrier to entry for machine‐learning molecular dynamics simulations with GPUMD and NEP.
Zihan Yan, Denan Li, Xin Wu, Zhoulin Liu, Chen Hua, Boyi Situ, Hao Yang, Shengjie Tang, Benrui Tang, Ziyang Wang, Shangzhao Yi, Huan Wang, Dian Huang, Ke Li, Qilin Guo, Zherui Chen, Ke Xu, Yanzhou Wang, Ziliang Wang, Gang Tang, Shi Liu, Zheyong Fan, Yizhou Zhu   +22 more
wiley   +1 more source

Multiple Snapshot Matching Pursuit For Direction Of Arrival (Doa) Estimation

, 2007
Publication in the conference proceedings of EUSIPCO, Poznan, Poland ...
openaire   +3 more sources

Compressive Sensing for High-Resolution Direction-of-Arrival Estimation via Iterative Optimization on Sensing Matrix

International Journal of Antennas and Propagation, 2015
A novel compressive sensing- (CS-) based direction-of-arrival (DOA) estimation algorithm is proposed to solve the performance degradation of the CS-based DOA estimation in the presence of sensing matrix mismatching. Firstly, a DOA sparse sensing model is
Hongtao Li, Chaoyu Wang, Xiaohua Zhu
doaj   +1 more source

Multi‐Species Constraints Resolve Methane Source Versus Sink Changes: Lessons From 2020

Earth's Future, Volume 14, Issue 6, June 2026.
Abstract Satellite observations show that atmospheric methane (CH4) increased by a record‐breaking 19 ppb in 2020, but the causes are unclear because of uncertain impacts from COVID‐related pollutant shifts on hydroxyl (OH) radical concentrations. Here we employ an ensemble of constraints to simultaneously quantify methane sources and sinks for 2020 in
Xueying Yu, Dylan B. Millet, Daven K. Henze, Helen Worden, Corinne Vigouroux, Prabir Patra, Jason D. Hill, Robert B. Jackson   +7 more
wiley   +1 more source