Results 11 to 20 of about 2,373,907 (291)

Upgrades of the Earth Networks Total Lightning Network in 2021

open access: yesRemote Sensing, 2022
The Earth Networks Total Lightning Network (ENTLN) launched a new processor (P2021) in December 2021. Some major upgrades were made in the new processor, including a new classification algorithm, a new propagation model, and regional data processing ...
Yanan Zhu   +3 more
doaj   +1 more source

Performance Evaluation of an Earthquake Early Warning System in the 2019–2020 M6.0 Changning, Sichuan, China, Seismic Sequence

open access: yesFrontiers in Earth Science, 2021
China is currently building a nationwide earthquake early warning system (EEWS) which will be completed in June 2023. Several regions have been selected as pilot areas for instrumentation, software system and dissemination verification. For these regions,
Chaoyong Peng   +7 more
doaj   +1 more source

Location Accuracy Improvement of Long-range Lightning Detection Network In China by Compensating Ground Wave Propagation Delay

open access: yesRemote Sensing, 2022
Very low frequency (VLF) electromagnetic waves distort along the long propagation path, and that causes the arrival time of the signals measured by the long-range lightning system to be delayed.
Junchao Zhang   +9 more
doaj   +1 more source

Indoor high-precision visible light positioning system using Jaya algorithm

open access: yesMathematical Biosciences and Engineering, 2023
Several indoor positioning systems that utilize visible light communication (VLC) have recently been developed. Due to the simple implementation and high precision, most of these systems are dependent on received signal strength (RSS).
Cuicui Cai   +4 more
doaj   +1 more source

The IBIS / ISGRI Source Location Accuracy [PDF]

open access: yesProceedings of An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch — PoS(INTEGRAL 2012), 2013
6 pages, 7 figures; accepted for publication in the proceedings of "An INTEGRAL view of the high-energy sky (the first 10 years)" 9th INTEGRAL Workshop, October 15-19, 2012, Paris, France, in Proceedings of Science (INTEGRAL 2012), Eds. A. Goldwurm, F. Lebrun and C.
Gros, A.   +6 more
openaire   +3 more sources

Development of a low-frequency magnetic lightning mapping system (LFM-LMS) in North China: validation and preliminary results

open access: yesEarth and Planetary Physics, 2023
A low-frequency magnetic lightning mapping system (LFM-LMS) was built during the SHAndong Triggered Lightning Experiment (SHATLE), based on continuous measurements of magnetic field radiation from lightning.
Xiao Li   +5 more
doaj   +1 more source

Dual Sagnac Interferometer Distributed Optical Fiber Localization Method Based on Hilbert–Huang Transform

open access: yesEnergies, 2023
In order to solve the problem that the dual Mach Zehnder (M-Z) interferometer system is easily affected by external environmental noise, a data signal-processing scheme based on Hilbert–Huang transform (HHT) is proposed to achieve high-precision location
Zhiheng Liu   +7 more
doaj   +1 more source

Preliminary Application of Long-Range Lightning Location Network with Equivalent Propagation Velocity in China

open access: yesRemote Sensing, 2022
The equivalent propagation method adopts a variable propagation velocity in lightning location, minimizing the location error caused by various factors in the long-range lightning location network. To verify the feasibility of this method, we establish a
Jie Li   +10 more
doaj   +1 more source

Leveraging RSS Data For An Improved Radiolocation Estimation Algorithm Realization In LoRaWAN Using A Two-Tier Normalization

open access: yesJournal of Applied Science and Engineering, 2023
An attempt to further enhance the accuracy and reliability of M-iWMLR localization algorithm using a new weight matrix that was formulated with two-tier RSS data normalization is presented.
Colette E. Agbo   +2 more
doaj   +1 more source

TrackingStorm: Visualization Tool for a Storm Detector Network (SDN) in the LF Spectrum

open access: yesBrazilian Archives of Biology and Technology, 2021
During the last year the Group of Atmospheric Electricity Phenomena (FEA/UFPR) developed a short range lightning location network based on a sensor device called Storm Detector Network (SDN), along with a set of algorithms that enables to track storms ...
Augusto Mathias Adams   +6 more
doaj   +1 more source

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