Results 21 to 30 of about 135 (115)
Remote Sensing, 2022 The BeiDou Global Navigation Satellite System (BDS-3) can provide PPP-B2b satellite-based Precise Point Positioning (PPP) real-time service to the Asia–Pacific region via PPP-B2b signal transmitted from the three Geostationary Earth Orbit (GEO ...
Ruohua Lan +5 more
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Performance Assessment of BDS-3 PPP-B2b/INS Loosely Coupled Integration
Remote Sensing, 2022 The BeiDou global navigation satellite system (BDS-3) has been officially providing a real-time precise point positioning (PPP) augmentation service, known as the PPP-B2b service, since 2020.
Xiaofei Xu +4 more
doaj +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 +6 more
wiley +1 more source
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 +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 +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 +2 more
wiley +1 more source
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 +4 more
wiley +1 more source
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 +5 more
wiley +1 more source
THE IMPACT OF ORBITAL AND CLOCK ERRORS ON POSITIONING FROM LEO CONSTELLATIONS AND PROPOSED ORBITAL SOLUTIONS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 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.
A. El-Mowafy +5 more
doaj +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 +5 more
doaj +1 more source