Results 31 to 40 of about 843 (194)
Satellite Navigation, 2021 The autonomous navigation of the spacecrafts in High Elliptic Orbit (HEO), Geostationary Earth Orbit (GEO) and Geostationary Transfer Orbit (GTO) based on Global Navigation Satellite System (GNSS) are considered feasible in many studies.
Tao Shi, Xuebin Zhuang, Liwei Xie
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AN OPTIMAL DEPLOYMENT METHOD OF UWB POSITIONING BASE-STATION [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 Aiming at the prominent problem of high deployment cost of UWB (Ultra Wideband) positioning system and the waste of resources caused by repeated coverage of UWB base-station signals, the optimal deployment of the location and number of UWB positioning ...
J. Li, C. Xiu, D. Yang
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Research on Improving Satellite Positioning Precision Based on Multi-Frequency Navigation Signals
Sensors, 2022 In satellite positioning systems, optimizing navigation satellite constellation and reducing the observation residuals are usually adopted to improve positioning precision and accuracy of the receiver.
Ting Kong, Lihua Ma, Guoxiang Ai
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, 2020 NiTi alloy has a great potentials for practical applications in medical field. Despite the full sterility and preoperative antibiotic prophylaxis, postoperative infection induced by NiTi implants occurs frequently, which could result in delayed healing ...
yin, Y
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O-GNSS Scheduler: Contact Plan for GNSS Constellations with Optical Inter-Satellite Links
, 2022 This is a PDOP-driven Scheduler for Optical Inter-Satellite Links enabled GNSS. A thorough description of the working principle can be found in the paper: "Contact Plan Design for GNSS Constellations: A Case Study with Optical Inter-Satellite Links" From
Andrea Nardin
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REAL-TIME WATER LEVEL MONITORING USING LOW-COST GNSS RECEIVER [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesDeveloping an accurate water level monitoring system is one of the measures to mitigate the effects of water-related hazards such as river flooding. While current monitoring systems in the country are efficient in terms of accurate and immediate data ...
R. D. Dizon +3 more
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Potential and performance of a polydopamine-coated multiwalled carbon nanotube/polysulfone nanocomposite membrane for ultrafiltration application [PDF]
, 2016 © 2015 The Korean Society of Industrial and Engineering Chemistry. The addition of multiwalled carbon nanotubes (MWNTs) as inorganic fillers is well known to improve membrane performance for water desalination. Most MWNTs are treated by acid treatment to
Min, C +4 more
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, 2020 Silver nanoparticles (AgNPs) with their unique properties represent great promise in biological applications. However, the high toxicity of AgNPs still remains a major bottleneck and hinders their basic usage.
YILMAZ, Aslı
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Transactions in GIS, Volume 30, Issue 1, February 2026.ABSTRACT This study examined GPS positioning accuracy in high‐density urban environments using Hong Kong as a representative case study. Through field measurements along 32 testing routes using three GPS devices, we evaluated GPS performance across diverse urban morphologies to assess associations between complex urban characteristics and positioning ...
Tianyu Li, Yanjia Cao, Grant McKenzie
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IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This study focuses on the critical challenge of selecting an overall optimal ISB stochastic model to improve GNSS PPP performance, which establishes a comprehensive assessment framework integrating positioning accuracy, convergence time, ISB characteristics, residual analysis, correlation metrics and physical mechanism interpretation.
Ban Zhao
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