Results 61 to 70 of about 95,672 (234)

Message Time of Arrival Codes: A Fundamental Primitive for Secure Distance Measurement [PDF]

IEEE Symposium on Security and Privacy, 2019
Secure distance measurement and therefore secure Time-of-Arrival (ToA) measurement is critical for applications such as contactless payments, passive-keyless entry and start systems, and navigation systems.
Patrick Leu, Mridula Singh, Marc Roeschlin, K. Paterson, Srdjan Capkun   +4 more
semanticscholar   +1 more source

Dynamic geo‐hydrogeological monitoring‐driven situational awareness for real‐time floor water inrush risk prediction in deep mining

Deep Underground Science and Engineering, EarlyView.
The fused data extracted from the distributed monitoring system as the data basis, combined with dynamic geological data, are imported into a deep learning model. As the geological conditions of mining and excavation change, the risk of water inrush at the working face is retrieved in real time.
Yongjie Li, Huiyong Yin, Fangying Dong, Tao Wu, Chao Zhang   +4 more
wiley   +1 more source

Time-of-Arrival and Angle-of-Arrival Measurement-Assisted 3D Inter-Unmanned Aerial Vehicle Relative Localization Under Distance-Dependent Noise Model

Electronics
This paper addresses the 3D relative localization problem for two unmanned aerial vehicles (UAVs) using a combination of time-of-arrival (TOA) and angle-of-arrival (AOA) measurements across varied flight trajectories.
Jiawei Tang, Tian Chang, Qinglong Jiang, Xuhui Ding, Dekang Liu   +4 more
semanticscholar   +1 more source

Transthyretin amyloid cardiomyopathy: Literature review and red‐flag symptom clusters for each cardiology specialty

ESC Heart Failure, Volume 12, Issue 2, Page 955-967, April 2025.
Abstract Wild‐type transthyretin amyloid cardiomyopathy (ATTRwt‐CM) is a progressive and infiltrative cardiac disorder that may cause fatal consequences if left untreated. The estimated survival time from diagnosis is approximately 3–6 years. Because of the non‐specificity of initial symptom manifestation and insufficient awareness among treating ...
Yasuhiro Izumiya, Toru Kubo, Jin Endo, Seiji Takashio, Masatoshi Minamisawa, Jun Hamada, Tomonori Ishii, Hajime Abe, Hiroaki Konishi, Kenichi Tsujita   +9 more
wiley   +1 more source

Numerical Investigation of the Time Discretization Impact on the Accuracy of a Point Target Localization by UWB Radar

EPJ Web of Conferences, 2018
UWB radar technologies enable localization of moving persons (targets) situated behind nonmetallic obstacles. Under exact knowledge of the propagation times, from the transmitting to the receiving antennas, of the radar emitted electromagnetic wave (time
Buša Ján, Kocur Dušan, Švecová Mária   +2 more
doaj   +1 more source

Multiresolution Time-of-arrival Estimation from Multiband Radio Channel Measurements [PDF]

IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019
Achieving high resolution time-of-arrival (TOA) estimation in multipath propagation scenarios from bandlimited observations of communication signals is challenging because the multipath channel impulse response (CIR) is not bandlimited.
Tarik Kazaz, R. Rajan, G. Janssen, A. V. D. Veen   +3 more
semanticscholar   +1 more source

Management Control Systems, Bricolage, and Frugal Innovation: Effects on Value Creation in Startups With a Social Mission

Knowledge and Process Management, EarlyView.
ABSTRACT This study analyzes the effects of the management control systems (social networking and organic innovative culture), via bricolage and frugal innovation, in the social and economic value creation of startups with a social mission. Data from 118 Brazilian startups with a social mission were analyzed using structural equation modeling and fuzzy‐
Anderson Betti Frare, Ilse Maria Beuren
wiley   +1 more source

Beamforming Design for Joint Localization and Data Transmission in Distributed Antenna System

, 2014
A distributed antenna system is studied whose goal is to provide data communication and positioning functionalities to Mobile Stations (MSs). Each MS receives data from a number of Base Stations (BSs), and uses the received signal not only to extract the
Haimovich, Alexander, Jeong, Seongah, Kang, Joonhyuk, Simeone, Osvaldo   +3 more
core   +1 more source

Ultra Wideband Channel Characterization and Ranging in Data Centers [PDF]

, 2007
This paper presents a detailed measurement based characterization of the Ultra Wideband (UWB) channels in a data center environment and examines the accuracy of direct ranging using Time of Arrival (ToA) measurements. Modern data centers present a unique
Cheung, D., Kant, K., Udar, N., Viswanathan, R.   +3 more
core   +2 more sources

Time of Arrival Extraction for Impact Localisation on Composite Structures

e-Journal of Nondestructive Testing
Time of arrival (TOA) serves as a widely utilised metric for pinpointing impact locations on composite aircraft structures. Nevertheless, the effectiveness and reliability of existing TOA extraction methods across diverse impact scenarios remains ...
Dong Xiao, Z. Sharif-Khodaei, M. H. Aliabadi   +2 more
semanticscholar   +1 more source