Results 31 to 40 of about 36,001 (245)

Performance of BDS-2/3, GPS, and Galileo Time Transfer with Real-Time Single-Frequency Precise Point Positioning

open access: yesRemote Sensing, 2021
Single-frequency (SF) receivers are much cheaper than that of dual-frequency (DF). Even though DF precise point positioning (PPP) is nowadays applied in the time community, the cost of equipment is one of the key considerations for time users ...
Xia Xiao   +4 more
doaj   +1 more source

Comprehensive Analyses of PPP-B2b Performance in China and Surrounding Areas

open access: yesRemote Sensing, 2022
BeiDou Global Navigation Satellite System (BDS-3) provides a regional Precise Point Positioning (PPP) service, called PPP-B2b, for users in China and surrounding areas through B2b signal transmitted from its three geostationary earth orbit (GEO ...
Yan Liu, Cheng Yang, Mengni Zhang
doaj   +1 more source

Performance analysis of real-time and post-mission kinematic precise point positioning in marine environments

open access: yesGeodesy and Geodynamics, 2020
This article focuses on the performance analysis of both real-time and post-mission kinematic precise point positioning (PPP) in challenging marine environments.
Serdar Erol   +3 more
doaj   +1 more source

Accuracy Analysis of Real-Time Precise Point Positioning—Estimated Precipitable Water Vapor under Different Meteorological Conditions: A Case Study in Hong Kong

open access: yesAtmosphere, 2023
Precipitable water vapor (PWV) monitoring with real-time precise point positioning (PPP) is required for the improved early detection of increasingly common extreme weather occurrences. This study takes Hong Kong as the research object.
Ying Xu   +4 more
doaj   +1 more source

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

open access: yesRemote 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. As an integral part of the third generation BeiDou Navigation Satellite System, Precision Point Positioning Service provides dual systems (
Jinhuo Liu   +6 more
openaire   +2 more sources

GNSS techniques for real-time monitoring of landslides: a review

open access: yesSatellite Navigation, 2023
Currently, Global Navigation Satellite System (GNSS) Real-Time Kinematic positioning (RTK) and Precise Point Positioning (PPP) techniques are widely employed for real-time monitoring of landslides.
Guanwen Huang, Shi Du, Duo Wang
doaj   +1 more source

Sub-Nanosecond UTC Dissemination Based on BDS-3 PPP-B2b Service

open access: yesRemote Sensing, 2023
The BeiDou-3 system (BDS-3) broadcasts PPP-B2b signals to provide real-time PPP service. Compared with the traditional PPP technique, the PPP-B2b service broadcasts corrections through satellite links, covers a wide area, and is independent of the ...
Zhe Zhang   +9 more
doaj   +1 more source

PPP-RTK with Rapid Convergence Based on SSR Corrections and Its Application in Transportation

open access: yesRemote Sensing, 2023
Real-time Kinematic (RTK) positioning provides centimeter-level positioning accuracy within several seconds, but it has to rely on a nearby base station.
Xiangdong An   +2 more
doaj   +1 more source

Validation and Assessment of Multi-GNSS Real-Time Precise Point Positioning in Simulated Kinematic Mode Using IGS Real-Time Service

open access: yesRemote Sensing, 2018
Precise Point Positioning (PPP) is a popular technology for precise applications based on the Global Navigation Satellite System (GNSS). Multi-GNSS combined PPP has become a hot topic in recent years with the development of multiple GNSSs.
Liang Wang   +5 more
doaj   +1 more source

Real-Time Precise Orbit Determination for LEO between Kinematic and Reduced-Dynamic with Ambiguity Resolution

open access: yesAerospace, 2022
The real-time integer-ambiguity resolution of the carrier-phase observation is one of the most effective approaches to enhance the accuracy of real-time precise point positioning (PPP), kinematic precise orbit determination (KPOD), and reduced-dynamic ...
Zhiyu Wang   +7 more
doaj   +1 more source

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