Results 31 to 40 of about 3,099,457 (245)
One-Dimensional MUSIC-Type Algorithm for Spherical Microphone Arrays
IEEE Access, 2020 Spherical microphone arrays have been widely used in direction-of-arrival (DOA) estimation in recent years. The conventional multiple signal classification method formulated in spherical harmonic domain (SHMUSIC) is computationally expensive ...
Qinghua Huang, Tingwei Chen
doaj +1 more source
Optimal Non-uniform Deployments in Ultra-Dense Finite-Area Cellular Networks [PDF]
, 2017 Network densification and heterogenisation through the deployment of small cellular access points (picocells and femtocells) are seen as key mechanisms in handling the exponential increase in cellular data traffic.
Dettmann, Carl P. +2 more
core +2 more sources
Security and SafetyIn this paper, we study an unmanned aerial vehicle (UAV)-assisted communication system, where the UAV is dispatched to implement simultaneous transmission and reception (STR) in the existence of multiple malicious jammers.
Huang Zhiyu +4 more
doaj +1 more source
Fusing Depth and Silhouette for Scanning Transparent Object with RGB-D Sensor
International Journal of Optics, 2017 3D reconstruction based on structured light or laser scan has been widely used in industrial measurement, robot navigation, and virtual reality. However, most modern range sensors fail to scan transparent objects and some other special materials, of ...
Yijun Ji, Qing Xia, Zhijiang Zhang
doaj +1 more source
IEEE Photonics Journal, 2017 We demonstrate a simple structure for the refractive index sensing by splicing a segment of capillary with two segments of single-mode fibers (SMFs). By selecting appropriate splicing parameters, two mode coupling regions can be formed with tapered air ...
Xiaobei Zhang +5 more
doaj +1 more source
A Deep Learning Method for DOA Estimation with Covariance Matrices in Reverberant Environments
Applied Sciences, 2022 Acoustic source localization in the spherical harmonic domain with reverberation has hitherto not been extensively investigated. Moreover, deep learning frameworks have been utilized to estimate the direction-of-arrival (DOA) with spherical microphone ...
Qinghua Huang, Weilun Fang
doaj +1 more source
Subsystems for future access networks [PDF]
, 2010 Current evolution and tendencies of Telecom Networks in general and more specifically optical Metro and Access Networks and their convergence are reported. Based on this evolution, a set of research lines are foreseen regarding subsystems and devices as:
Avramopoulos, Hercules +15 more
core +2 more sources
A dynamic spectrum access scheme for cognitive radio networks [PDF]
, 2009 —In this paper, the dynamic spectrum access problem for cognitive radio (CR) networks is formulated as maximizing the sum channel capacity while satisfying the power budgets of individual secondary user radios as well as the SINR constraints on both the ...
Du, KL, Ni, Q, Swamy, MNS
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
IEEE Photonics Journal, 2017 Based on the scattering loss difference between the single-mode-fiber-optical-waveguide (SMFW) and multimode-fiber-optical-waveguide (MMFW) structures, a method to estimate the roughness of multimode rectangular optical waveguide (ROW) is proposed. Based
Chuanlu Deng +6 more
doaj +1 more source