Results 11 to 20 of about 14,978 (220)
ANALYSIS OF POSITIONING DEVIATION BETWEEN BEIDOU AND GPS BASED ON NATIONAL REFERENCE STATIONS IN CHINA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 In order to probe into the characteristics of positioning deviation between Beidou Navigation Satellite System (Beidou) and global positioning system (GPS), and investigate possible contribution of Beidou data to refinement of global coordinate system ...
M. Chen, Q. Zhang, Q. Zhang
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Helmert Variance Component Estimation for Multi-GNSS Relative Positioning [PDF]
, 2020 The Multi-constellation Global Navigation Satellite System (Multi-GNSS) has become the standard implementation of high accuracy positioning and navigation applications.
Fang, Zhenlong +5 more
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La nuova rete GNSS multicostellazione dell'Umbria
GEOmedia, 2019 The GPSUMBRIA permanent station network (Umbria region, central Italy), renewed in all its components, is the first GNSS network in Italy and among the first in the world to provide positioning services on four constellations (GPS, GLONASS, GALILEO and ...
Fabio Radicioni, Aurelio Stoppini
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Design and implementation of clock synchronization scheme for mine distributed acquisition system
Gong-kuang zidonghua, 2021 Due to its accuracy and application limitations, single clock synchronization technology can not meet the high-precision and high-reliability clock synchronization accuracy requirements of the mine distributed acquisition system.
AN Sai
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Research on Beidou and GPS dual satellite positioning algorithms for substation site positioning
International Journal of Metrology and Quality Engineering, 2020 With the rapid development of global satellite navigation system technology, multi-mode satellite navigation positioning technology that can be compatible with multiple navigation systems at the same time is bound to become the future development trend ...
Feng Junjie +3 more
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Cross-talk statistics and impact in interferometric GNSS-R [PDF]
, 2016 ©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Alonso Arroyo, Alberto +5 more
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Cherry defect and classification detection based on improved YOLOX model
Shipin yu jixie, 2023 Objective: In order to expand the scope of cherry sales and achieve rapid grading of cherries under industrial conditions. Methods: Firstly, the YOLOX network was used to detect the defective fruit, in order to solve some problems where the defect was ...
LIU Jing-yu +4 more
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Sensors, 2020 The secondary modulation with the Neumann-Hoffman code increases the possibility of bit sign transition. Unlike other GNSS signals, there is no pilot component for synchronization in BeiDou B1/B3 signals, which increases the complexity in acquisition.
Menghuan Yang +4 more
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SNR degradation in GNSS-R measurements under the effects of radio-frequency interference [PDF]
, 2016 ©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Alonso Arroyo, Alberto +5 more
core +2 more sources
Frontiers in Genetics, 2023 Background: Intratumoral hypoxia is widely associated with the development of malignancy, treatment resistance, and worse prognoses. The global influence of hypoxia-related genes (HRGs) on prognostic significance, tumor microenvironment characteristics ...
Zhaojin Li +12 more
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