Results 81 to 90 of about 51,700 (277)

STUDY ON THE PERFORMANCE OF BEIDOU HIGH-PRECISION REFERENCE STATION NETWORK IN BEIBU GULF OF GUANGXI [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Beidou high-precision reference station network in Beibu Gulf of Guangxi consists of five parts, namely Beidou reference stations, the data processing system, the operation and service platform, the data broadcast system and user terminals.
X. Y. Zhong, Y. F. Yang, C. L. Zhou
doaj   +1 more source

Characteristics of Stratospheric Gravity Wave Spectra and Their Dynamic Linkage With Convection

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Gravity wave (GW) spectra can visualize the energy distribution between different scales. A large amount of data from the round‐trip intelligent sounding system in southern China is used to investigate the GW vertical spectra and the poorly studied stratospheric horizontal spectra of horizontal winds.
Yuyang Song, Yang He, Zheng Sheng, Hongze Leng, Difu Sun, Zhixuan Bai, Jincheng Wang   +6 more
wiley   +1 more source

Molecular Epidemiology and Genetic Diversity of Orientia tsutsugamushi From Patients and Small Mammals in Xiangyun County, Yunnan Province, China

Veterinary Medicine and Science, Volume 11, Issue 5, September 2025.
Scrub typhus is caused by Orientia tsutsugamushi (OT). In this study, the detection rates of OT in patients and small mammals were 28.13% (18/64) and 13.98% (13/93), respectively. Nine full‐length 56‐kDa TSA genes were identified, comprising four distinct genotypes: Karp‐like (n = 3), Kato‐like (n = 3), Gilliam (n = 2), and TA763 (n = 1). Recombination
Li Chen, Yi‐Chen Kong, Jia‐Wei Tian, Pei‐Yu Han, Song Wu, Chen‐Jie He, Ti‐Lian Ren, Bo Wang, Lian Qin, Yun‐Zhi Zhang   +9 more
wiley   +1 more source

Predictive intelligence for a rail traffic management system [PDF]

, 2017
As the demands on terrestrial transport systems increase, there is a growing need for greater efficiencies. More intelligent mobility and ultimately autonomous transport assets will deliver these efficiencies through the evolution of cooperative ...
Bonenberg, Lukasz, Hill, Chris, Meng, Xiaolin, Moore, Terry, Roberts, Simon   +4 more
core   +1 more source

3D Reconstruction of Equatorial Plasma Bubbles Using EOF and GNSS Radio Occultation Data From MSS‐1 and COSMIC‐2

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract This study presents initial scientific insights obtained from Radio Occultation (RO) observations of ionospheric irregularities and scintillation at equatorial and low latitudes collected by the Macau Science Satellite‐1 (MSS‐1). With a specific focus on the South Atlantic Anomaly (SAA) region, an Empirical Orthogonal Function (EOF ...
Jinhuan Du, Zhe Yang, Peng Guo, Mengjie Wu, Juanjuan Dong, Honggang Li, Feifei Zuo   +6 more
wiley   +1 more source

Research on satellite selection algorithm in ship positioning based on both geometry and geometric dilution of precision contribution

International Journal of Advanced Robotic Systems, 2019
With the networking of four Global Navigation Satellite Systems, the combination of multi-constellation applications has become an inevitable trend, and there will be more and more visible satellites that can be participated in ship positioning. However,
Pengfei Zhang
doaj   +1 more source

Effect of the 1 December 2023 Geomagnetic Storm on SPP Performance in China

Space Weather, Volume 23, Issue 9, September 2025.
Abstract Geomagnetic storms, precipitated by solar phenomena such as coronal mass ejections (CMEs), profoundly disturb the Earth's magnetic field, impacting satellite‐based navigation systems. This study analyzed the effect of a moderate geomagnetic storm on 1 December 2023, on single‐point positioning (SPP) accuracy across various Chinese regions ...
Si Chen, Fengzheng Yu, Hong Yuan, Guang Yang, Kai Fan, Peng Zhang, Yong Wei   +6 more
wiley   +1 more source

Improving the Performance of Multi-GNSS (Global Navigation Satellite System) Ambiguity Fixing for Airborne Kinematic Positioning over Antarctica [PDF]

, 2019
Conventional relative kinematic positioning is difficult to be applied in the polar region of Earth since there is a very sparse distribution of reference stations, while precise point positioning (PPP), using data of a stand-alone receiver, is ...
Flechtner, Frank, Förste, Christoph, He, Kaifei, Li, Min, Lu, Biao, Xu, Tianhe   +5 more
core   +1 more source

Application of BeiDou navigation satellite system in emergency rescue of natural hazards: a case study for field geological survey of Qinghai−Tibet plateau

Geo-Spatial Information Science, 2018
In recent years, geological and mineral resources exploration in China has expanded to deep hinterland of the Qinghai−Tibet Plateau and other regions with complex geological conditions.
M. Hao, Jianlong Zhang, R. Niu, C. Deng, Hong Liang   +4 more
semanticscholar   +1 more source

Automatic Detection of Large‐Scale Traveling Ionospheric Disturbances Using GNSS Data and Image Processing Techniques

Space Weather, Volume 23, Issue 9, September 2025.
Abstract Large‐scale traveling ionospheric disturbances (LSTIDs) are wave‐like structures propagating through the ionosphere from auroral to lower latitudes, affecting radar‐based technologies and satellite navigation. Due to their disruptive effects, timely detection is crucial. This work presents an autonomous detection technique based on travel‐time
Marco Guerra, Claudio Cesaroni, Nicola Fiorentino, Federico Tosone, Vincenzo Ventriglia, Emanuele Pica, Elvira Astafyeva, Boris Maletckii, Luca Spogli   +8 more
wiley   +1 more source