Results 31 to 40 of about 72,914 (171)

Design and Reception Method of Code Shift Keying Signals With Power‐of‐Two Phase Intervals

IET Radar, Sonar & Navigation
Precise point positioning (PPP) technology has garnered extensive attention for its ability to deliver real‐time centimetre‐level accuracy services. When providing PPP services via satellite navigation signals, it is necessary to increase the data rate ...
Nengjie Yu, Dun Wang, Xiaohui Ba, Mingquan Lu, Shaobo Shen   +4 more
doaj   +2 more sources

The Bias in PPP-B2b Real-Time Clock Offset and the Strategy to Reduce It

Remote Sensing, 2022
Precise point positioning can provide accurate coordinates to users without reference stations, and the high-precision real-time clock offset product is necessary for real-time precise point positioning application.
Jinhuo Liu, Chengpan Tang, Shanshi Zhou, Xiaogong Hu, Yufei Yang, Jianhua Yang, Yuchen Liu   +6 more
doaj   +2 more sources

Performance Evaluation and Application Field Analysis of Precise Point Positioning Based on Different Real-Time Augmentation Information

Remote Sensing
The 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, Le Wang, Wei Xie, Fan Yue, Bobin Cui   +4 more
doaj   +2 more sources

LEO-Enhanced BDS-3 PPP Performance Based on B2b Signal

Remote Sensing
Since 2020, the BDS-3 has been providing real-time corrections via the B2b signal, enabling users in China and its neighboring regions to achieve kinematic positioning accuracy at the decimeter level.
Ju Hong, Rui Tu, Yangyang Liu, Yulong Ge, Fangxin Li   +4 more
doaj   +2 more sources

The Impact of Orbital and Clock Errors on Positioning from LEO Constellations and Proposed Orbital Solutions [PDF]

, 2023
Two approaches are discussed for the estimation and prediction of the orbits of low earth orbit (LEO) satellites that can be used for navigation. The first approach relays on using a ground monitoring network of stations.
Allahvirdi-Zadeh, Amir, El-Mowafy, Ahmed, Li, Yan, Wang, Kan   +3 more
core   +4 more sources

BDS-PPP-B2b-Based Smartphone Precise Positioning Model Enhanced by Mixed-Frequency Data and Hybrid Weight Function

Applied Sciences
Compared to high-cost hardware-based Global Navigation Satellite System (GNSS) positioning techniques, smartphone-based precise positioning technology plays an important role in applications such as the Internet of Things (IoT). Since Google released the
Zhouzheng Gao, Zhixiong Wu, Shiyu Liu, Cheng Yang   +3 more
doaj   +2 more sources

Combining Galileo HAS and Beidou PPP-B2b with Helmert coordinate transformation method

GPS Solutions
Haopeng Wei, Guorui Xiao, Peiyuan Zhou, Peigong Li, Zhengyang Xiao, Baoxiang Zhang   +5 more
semanticscholar   +2 more sources

EACR 2023: Innovative Cancer Science, 12-15 June 2023, Torino, Italy. [PDF]

Mol Oncol, 2023
Molecular Oncology, Volume 17, Issue S1, Page 1-597, June 2023.
europepmc   +2 more sources

Orbit determination of Sentinel-6A using the Galileo high accuracy service test signal [PDF]

, 2022
The High Accuracy Service (HAS) is an upcoming addition to the Galileo service portfolio that offers free correction data for precise point positioning in real-time.
Fernández-Hernández, Ignacio, Hauschild, André, Martini, Ilaria, Montenbruck, Oliver, Steigenberger, Peter   +4 more
core   +3 more sources

A New Cooperative PPP-RTK System with Enhanced Reliability in Challenging Environments [PDF]

, 2023
Compared to the traditional PPP-RTK methods, cooperative PPP-RTK methods provide expandable service coverage and eliminate the need for a conventional expensive data processing center and the establishment and maintenance of a permanently deployed ...
Lyu, Zhitao
core   +2 more sources