Results 11 to 20 of about 129 (65)
Remote SensingThe BeiDou Satellite-Based Augmentation System (BDSBAS), based on the Radio Technical Commission for Aeronautics (RTCA) protocol, aims to provide high-precision, single-frequency positioning with integrity assurance for civil aviation users in China and ...
Zhaochen Li +4 more
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Remote SensingThe most commonly used real-time augmentation services in China are the International GNSS Service’s (IGS) real-time service (RTS), PPP-B2b service, and Double-Frequency Multi-Constellation (DFMC) service of the BeiDou Satellite-Based Augmentation System
Mengjun Wu +4 more
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Kongjian kexue xuebao, 2023 以实际广播星历、精密星历和北斗星基增强系统(BDSBAS)增强报文为实验数据，通过计算BDSBAS轨道误差、卫星钟差、空间信号测距误差和BDSBAS格网电离层有效点、播发时间和电离层延迟误差6个指标，评估分析了BDSBAS空间信号的性能。结果显示：BDSBAS增强后的GPS卫星轨道误差在切向、法向、径向分别降低了34.57%，40.57%，30.90%；卫星钟差均方根降低了24.31%，卫星钟差标准差降低了16.8%；空间信号测距误差相比增强前降低了32.75 ...
刘 瑞华, 耿 海潮, 刘 亮
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Progress of Geodesy Related Ionosphere from Chinese Scientists in the Period of 2019—2023 [PDF]
Journal of Geodesy and Geoinformation Science, 2023 The ionosphere is the ionized part of the upper atmosphere of the Earth, which plays an important role in atmospheric electricity and forms the inner edge of the magnetosphere.
Zishen LI, Ningbo WANG, Ang LIU, Ang LI, Heng YANG, Dongshen ZHAO, Xiaodong REN, Andong HU
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IET Radar, Sonar & Navigation, 2023 For a receiver of the BeiDou Satellite Based Augmentation System (BDSBAS), the acquisition aims to coarsely estimate the pseudo‐code delays and carrier Doppler shifts of the received signals.
Chengyao Tang +4 more
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Design of a Land Area Measuring Instrument Based on an STM32 and a BeiDou Positioning Chip
ElectronicsThis paper presents a land area measuring instrument based on an STM32 microcontroller (STMicroelectronics, Paris, France) and a BeiDou positioning chip (Zhongke Microelectronics, Hangzhou, China).
Xin-Jun Wu, Bo Ni, Guo-Huan Hua
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GPS‐SBAS‐Based Orbit Determination for Low Earth Orbiting Satellites
International Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023 A space‐based augmentation system (SBAS) provides real‐time GNSS correction signals via geostationary satellites for near‐ground GNSS users. To use the SBAS correction for low Earth orbit (LEO) satellites, the correction, especially the ionosphere correction, must be adjusted for the LEO altitude.
Mingyu Kim +2 more
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International Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023 Cycle slip determination plays an important role in high‐precision data processing and application of global navigation satellite systems (GNSS). The TurboEdit method consists of the Melbourne‐Wubbena (MW) and the geometry‐free phase (GF) combination. It can correctly detect and repair cycle slip in most cases.
Kezhao Li +7 more
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Remote Sensing, 2023 To guarantee the integrity of a global navigation satellite system (GNSS) for safety-critical users, a satellite-based augmentation system (SBAS) makes use of the integrity monitoring architecture, of which the signal quality monitor (SQM) is an ...
Xiang Wang +3 more
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Evaluation of GNSS positioning accuracy from satellite-based augmentation systems in Thailand
Engineering and Applied Science Research, 2022 Satellite Based Augmentation System (SBAS) provides correction message services as an additional system to navigation satellites. Several SBAS services exist in many regions and usually cover a large area. Although, Thailand is not geographically located
Phunsap Thari +2 more
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