Results 41 to 50 of about 72,914 (171)

Tide Gauge Benchmark Monitoring Working Group Technical Report 2022 [PDF]

, 2023
editorial reviewedApplications of the Global Navigation Satellite Systems (GNSS) to Earth Sciences are numerous. The International GNSS Service (IGS), a voluntary federation of government agencies, universities and research institutions, combines GNSS ...
Bingley, R., Craddock, A., Deng, Z., Gravelle, M., Guichard, M., Hansen, D., Herring, T., HUNEGNAW, Addisu, Jia, M., King, M., Masoumi, S., Merrifield, M., Mitchum, G., Prouteau, E., Sanchez, L., Santamaria-Gomez, A., Schöne, T., Teferle, Felix Norman, Thaller, D., Williams, S., Wöppelmann, G.   +20 more
core   +1 more source

Real‐time precise orbit determination for FY‐3C and FY‐3D based on BDS and GPS onboard observation

IET Radar, Sonar &Navigation, Volume 17, Issue 8, Page 1213-1229, August 2023., 2023
(1) The real‐time precise orbit determination (POD) for low earth orbit (LEO) satellites based on spaceborne global positioning system (GPS) and BDS‐2 observations are executed. (2) Code multipath piece‐wise linear (PWL) error model of BDS‐2 satellites is constructed and applied to real‐time LEO POD.
Zhiyu Wang, Liang Wang, Zishen Li, Mainul Hoque, Ningbo Wang, Dongyan Wei, Hong Yuan   +6 more
wiley   +1 more source

Application of journey maps to the development of emergent sustainability‐oriented technologies: Lessons for user involvement in agriculture

Business Strategy &Development, Volume 5, Issue 3, Page 209-221, September 2022., 2022
Abstract This article foregrounds the challenges and necessity of promoting user involvement in traditional sectors, especially those that constitute strong pillars for sustainable development. As a case in point, the emergence of precision agriculture technologies requires novel methods to integrate users in innovation processes.
Débora Monteiro Moretti, Chad M. Baum, Michael Wustmans, Stefanie Bröring   +3 more
wiley   +1 more source

Modelling and Assessment of BDS‐3 Real‐time Precise Point Positioning Time Transfer Based on PPP‐B2b Service

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
In 2020, users in and around China had access to a new real‐time precise point positioning (RTPPP) service with the BeiDou global navigation satellite system (BDS‐3) B2b (PPP‐B2b) signal. In this study, the quality of PPP‐B2b products is first assessed and compared with the CNAV1 broadcast ephemeris. Then a mode of BDS‐3 PPP time transfer with PPP‐B2b (
Jian Tang, Daqian Lyu, Fangling Zeng, Yulong Ge, Runzhi Zhang, Jun Li   +5 more
wiley   +1 more source

PPP/PPP‐RTK open formats: Overview, comparison, and proposal for an interoperable message

NAVIGATION, Volume 68, Issue 4, Page 759-778, Winter 2021., 2021
Abstract This paper presents and reviews the main existing open specifications for PPP/PPP‐RTK services, including satellite navigation providers (QZSS, Galileo, BeiDou, GLONASS) and other industrial or scientific initiatives (RTCM, SAPCORDA, 3GPP, IGS).
Rui Hirokawa, Ignacio Fernández‐Hernández, Simon Reynolds   +2 more
wiley   +1 more source

Precise Real-Time Navigation of the LEO Satellite Enhanced by BDS-3 PPP-B2b Service

Advances in Space Research
Xuewen Gong, Wanwei Zhang, Aili Zhao, Shuaihe Gao, Fuhong Wang, Jingkui Zhang, Song Xie, Guodong Feng, Zaichun Yang   +8 more
semanticscholar   +2 more sources

Using Galileo and BDS‐3 Quad‐Frequency Signals for Long‐Baseline Instantaneous Decimeter‐Level Positioning

Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
As the signals of Galileo and the global BDS‐3 navigation satellite system have been accessible, positioning users can use quad‐frequency even five‐frequency signals nowadays. With multifrequency signals, one can form some useful combinations to improve the positioning performance, e.g., the widely used extra‐wide‐lane (EWL)/wide‐lane (WL) in triple ...
Wang Gao, Liwei Liu, Longlei Qiao, Shuguo Pan, Chao Hu   +4 more
wiley   +1 more source

Correction Model of BDS‐3 Satellite Pseudorange Multipath Delays and Its Impact on Single‐Frequency Precise Point Positioning

Mathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
Precise point positioning (PPP) is used in many fields. However, pseudorange multipath delay is an important error that restricts its accuracy. Pseudorange multipath delay can be considered as the combination of effective information and observation noise; it can be modeled after removing the observation noise.
Zhongchen Guo, Xuexiang Yu, Chao Hu, Zhihao Yu, Chuang Jiang, Dazhong Ma   +5 more
wiley   +1 more source

Analysis of B2b signal of BDS III satellite

Dianzi Jishu Yingyong, 2020
With the construction of BDS III satellite nearing completion, Beidou service will transition smoothly to be provided mainly by BDS III system. The B2b signal interface document was announced on December 27, 2019.
He Xulei, Liu Cheng, Chen Ying, Ba Xiaohui, Chen Jie   +4 more
doaj   +1 more source

Retrieval of Real-Time Zenith Tropospheric Delay with Beidou PPP-B2b

, 2023
The traditional method for retrieving the real-time zenith total delay (ZTD) with GNSS requires stable access to the internet for the reception of satellite orbit and clock corrections. This limits the use of this technique in areas without a reliable internet connection. The new precise point positioning service via the B2b signal (PPP-B2b) service on
Wang, X., Zhang, J., Zhou, K.
openaire   +2 more sources