Results 31 to 40 of about 4,613,389 (161)

USER IMPLEMENTATION AND ASSESSMENT OF BDS-3 PRECISE POINT POSITIONING AUGMENTATION SERVICE WITH NO ECONOMIC COST [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
The satellite-based precise point positioning (PPP) service enables users with high accuracy positions without Internet connections. Currently, two types of satellite-based PPP services are available.
C. Ouyang, C. Ouyang, C. Ouyang, J. Shi, J. Shi, J. Shi, W. Peng, W. Peng, W. Peng, X. Dong, X. Dong, X. Dong, J. Guo, J. Guo, J. Guo, Y. Yao, Y. Yao   +16 more
doaj   +1 more source

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

Are PPP tests erratically behaved? Some panel evidence [PDF]

, 2006
This paper examines whether, in addition to standard unit root and cointegration tests, panel approaches also produce test statistics behaving erratically when applied to PPP.
Hanck, C, Caporale, GM
core   +7 more sources

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

Signal‐in‐Space and Positioning Performance of BDS Open Augmentation Service

Mathematical Problems in Engineering, Volume 2022, Issue 1, 2022., 2022
As a typical augmentation satellite system for centimeter‐level positioning, PPP (Precise Point Positioning) service based on PPP‐B2b signal of China’s new generation BeiDou system (BDS‐3) was released for Asia‐Pacific area on July, 2020. This paper first introduces the recovery theory of PPP‐B2b SSR (State Space Representation) messages and then ...
Liang Chen, Guangyu Zhou, Guo Chen, Weibin Sun, Luotian Pan, Xinyuan Jiang   +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

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

Principle and performance of BDSBAS and PPP-B2b of BDS-3

Satellite Navigation, 2022
Within the framework of differential augmentation, this paper introduces the basic technical framework and performance of the BeiDou Global Navigation Satellite System (BDS-3) Satellite-Based Augmentation System (BDSBAS), including orbit products ...
Yuanxi Yang, Qun Ding, Weiguang Gao, Jinlong Li, Yangyin Xu, Bijiao Sun   +5 more
doaj   +1 more source