Results 81 to 90 of about 12,241 (271)
Space Weather, Volume 23, Issue 11, November 2025.Abstract Satellite navigation systems are vulnerable to space weather disturbances, which can degrade positioning accuracy and potentially increase the collision risk of unmanned aerial vehicles (UAVs). This study investigates the influence of navigation errors caused by ionospheric scintillation on UAV encounter scenarios. Two route configurations are
Dabin Xue +4 more
wiley +1 more source
Integrated positioning method of roadheader based on inertial technology
Meitan kexue jishuIn view of the environmental constraints such as long working cycle and large vibration amplitude during the cutting of the roadheader in the fully mechanized excavation face, it is difficult for a single inertial navigation system to realize autonomous,
Lingfei SUN +5 more
doaj +1 more source
M‐SADR: Mobile Self Adaptive Data Rate for Enhanced LoRa End‐Device Connectivity on the Move
International Journal of Communication Systems, Volume 38, Issue 15, October 2025.The proposed M‐SADR method targets mobile LoRa end‐devices and achieves better performance, with a 2.4% improvement in packet delivery ratio and a 5.7% reduction in power consumption per successfully delivered packet. ABSTRACT Mobility is a critical aspect of the Internet of Things, reflecting the diverse and dynamic nature of potential applications ...
Vasileios Moysiadis +6 more
wiley +1 more source
Global capabilities of BeiDou Navigation Satellite System
, 2020 The BeiDou Navigation Satellite System (BDS) has completed the constellation deployment and started to provide global services. After achieving the capabilities of global coverage, global first-class accuracy for Positioning, Navigation and Timing (PNT),
Jun Lu, Xia Guo, Chengeng Su
semanticscholar +1 more source
Space Weather, Volume 23, Issue 10, October 2025.Abstract Based on the total electron content (TEC) observation in the Asian‐Australian and American sectors, this paper investigates the characteristics and hemispheric asymmetry of large‐scale traveling ionospheric disturbances (LSTIDs) during the 10 May 2024 superstorm. We found that the amplitudes and meridional phase velocities of LSTIDs in the two
Tingwei Han +11 more
wiley +1 more source
Performance Evaluation of Precise Point Positioning for BeiDou-3 B1c/B2a Signals in the Global Range [PDF]
, 2021 Ershen Wang +6 more
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Radar Network Threat Estimation Based on Beidou [PDF]
Proceedings of the 4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering 2015, 2015 Networking radar can make full use of resources and due to the advantages of single radar, making the detection, localization, tracking, identification, and other aspects of the threat of judgment performance has been greatly improved. With the gradual improvement of the Beidou system, powerful communication capability allows the network radar is no ...
Yan Song, Limin Liu
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Space Weather, Volume 23, Issue 10, October 2025.Abstract During the main phase of the May 2024 super geomagnetic storm, we investigated large‐scale traveling ionospheric disturbances (LSTID) using data from densely distributed global GNSS receivers. From both two‐dimensional and three‐dimensional (3D) perspectives, we analyzed LSTID propagation characteristics over North America, European, and ...
Ting Zhang +4 more
wiley +1 more source
AtmosphereThe Weather Research and Forecasting (WRF) model was used to simulate Typhoon Rumbia in this paper. The sensitivity experiments were conducted with 16 different parameterization combination schemes, including four microphysics (WSM6, WSM5, Lin, and ...
Li Li +4 more
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An Improved Doppler-Aided Smoothing Code Algorithm for BeiDou-2/BeiDou-3 un-Geostationary Earth Orbit Satellites in Consideration of Satellite Code Bias [PDF]
, 2023 Xiao Gao +3 more
openalex +1 more source