Results 1 to 10 of about 2,695 (175)

The WRF Simulation Influence of Assimilating GNSS Water Vapor and Parameterization Schemes on Typhoon Rumbia

open access: yesAtmosphere
The 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
doaj   +1 more source

Augment BeiDou real-time precise point positioning using ECMWF data

open access: yesEarth, Planets and Space, 2018
The Chinese BeiDou Navigation Satellite System has shown potential for precise positioning with a comparable accuracy to that of the Global Positioning System (GPS) at the centimeter level for the horizontal component and the sub-centimeter level for the
Kemin Zhu   +5 more
doaj   +1 more source

Performance of Ground-Based Global Navigation Satellite System Precipitable Water Vapor Retrieval in Beijing with the BeiDou B2b Service

open access: yesRemote Sensing
The accurate measurement of water vapor is essential for research about and the applications of meteorology, climatology, and hydrology. Based on the BeiDou PPP-B2b service, real-time precipitable water vapor (PWV) can be retrieved with the precise point
Yunchang Cao   +5 more
doaj   +1 more source

Attention-Enhanced MinkUNet for Label-Efficient Segmentation of Transmission Line LiDAR Point Clouds

open access: yesApplied Sciences
Routine inspections of transmission lines are essential for maintaining the reliability of the power grid. Airborne LiDAR technology provides detailed 3D corridor data for automated hazard detection, such as vegetation encroachment and structural ...
Yijiang Wu, Jianfeng Huang, Yuxuan Lei
doaj   +1 more source

Design of double band Beidou navigation antenna with wide axial ratio beam

open access: yesZhongguo Jianchuan Yanjiu
ObjectivesIn order to effectively broaden the beam width of the 3 dB axis ratio of a Beidou antenna, this paper proposes a slotted laminated microstrip patch antenna loaded with parasitic elements.
Zhuolin DENG   +3 more
doaj   +1 more source

Anomalies of land-atmospheric parameters in the 2023 Turkey earthquake (Mw7.8) using GNSS and ERA5

open access: yesGeomatics, Natural Hazards & Risk
The Turkey earthquake (Mw 7.8) caused severe damage to Turkey and Syria on Feb. 6, 2023. It was observed that anomalies of land surface and atmospheric multi-parameters were associated with the land–atmosphere–ionosphere coupling (LAIC) mechanism.
Li Li   +7 more
doaj   +1 more source

An Evaluation Method on the Service Range of Reference Base Station in Assisted Beidou Navigation

open access: yes工程科学与技术, 2012
:In order to improve the performance of mobile positioning, enhance the Beidou navigation system application ability, reduce the investment cost of mobile network, an evaluation method of reference base station service range in assisted Beidou navigation
Zhang Guang-Hua   +2 more
doaj  

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