Results 41 to 50 of about 549,143 (317)
THE PERFORMANCE ANALYSIS OF THE POST-MISSION WEB-BASED STATIC AND KINEMATIC PPP-AR SERVICE
Rudarsko-geološko-naftni Zbornik, 2023 The use of the Precise Point Positioning (PPP) technique has become very advantageous with the development of GNSS positioning technology. It is possible to get highly accurate position information without the need of any reference station data using the
Bilal Mutlu +2 more
doaj +1 more source
Integrity monitoring scheme for single-epoch GNSS PPP-RTK positioning
Satellite Navigation, 2023 Integrity monitoring for precise point positioning is critical for safety-related applications. With the increasing demands of high-accuracy autonomous navigation for unmanned ground and aerial vehicles, the integrity monitoring method of high-precision ...
Wenhao Zhang, Jinling Wang
doaj +1 more source
Remote Sensing, 2021 The space segment of all the five satellite systems capable of providing precise position services, namely BeiDou Navigation Satellite System (BDS) (including BDS-3 and BDS-2), Global Positioning System (GPS), GLObal NAvigation Satellite System (GLONASS),
Xuanping Li, Lin Pan
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Precipitable water vapour measurement using GNSS data in the Atacama Desert for millimetre and submillimetre astronomical observations [PDF]
Monthly Notices of the Royal Astronomical Society, Volume 528,
Issue 3, March 2024, Pages 4582-4590, 2023 Precipitable water vapour (PWV) strongly affects the quality of data obtained from millimetre- and submillimetre-wave astronomical observations, such as those for cosmic microwave background measurements. Some of these observatories have used radiometers to monitor PWV.
arxiv +1 more source
Inducing Propeller Chirality in Triaryl Boranes with Chiral Amines
Chemistry – A European Journal, Volume 28, Issue 70, December 15, 2022., 2022 A three‐point interaction between a chiral amine and a triarylborane is shown to suffice to induce a preferential propeller handedness to the borane. Rotation of aryl blades can be avoided by incorporation of naphthyl instead of phenyl and a bulky amine component.
Michael Kemper +3 more
wiley +1 more source
Sensors, 2020 With the development of Global Navigation Satellite System (GNSS) and the opening of Application Programming Interface (API) of Android terminals, the positioning research of Android terminals has attracted the attention of GNSS community. In this paper,
Guangxing Wang +5 more
doaj +1 more source
ACCURACY TESTING OF THE ONLINE FREE GNSS PPP SERVICES, AS A FUNCION OF OBSERVATION DURATION AND THE ELAPSED TIME FROM MEASUREMENT EPOCH TO EPOCH OF MEASUREMENT COMPUTATION [PDF]
Geodetski Glasnik, 2011 Use of PPP has become possible since the advent of precise satellite ephemerides and clock corrections from IGS. This work represents a research in attainable accuracy and reliability of the free online GNSS services (APPS, CSRS, GAPS, magicGNSS ...
Denis Tabučić +2 more
doaj +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
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First observations with a GNSS antenna to radio telescope interferometer [PDF]
Radio Science, 58, e2023RS007734, 2023 We describe the design of a radio interferometer composed of a Global Navigation Satellite Systems (GNSS) antenna and a Very Long Baseline Interferometry (VLBI) radio telescope. Our eventual goal is to use this interferometer for geodetic applications including local tie measurements.
arxiv +1 more source
PPP-RTK with Rapid Convergence Based on SSR Corrections and Its Application in Transportation
Remote 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