Results 31 to 40 of about 72,152 (156)
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
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
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 +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
Remote Sensing, 2021 On 31 July 2020, the Beidou global navigation satellite system (BDS-3) was officially announced as being commissioned. In addition to offering global positioning, navigation, and timing (PNT) services, BDS-3 also provides precise point positioning (PPP ...
Zhixi Nie +3 more
doaj +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
Precise Real-Time Navigation of the LEO Satellite Enhanced by BDS-3 PPP-B2b Service
Advances in Space ResearchXuewen Gong +8 more
semanticscholar +2 more sources