Results 41 to 50 of about 8,397 (209)
The Carrier Phase Time Transfer with Broadcast Ephemeris
Journal of Physics: Conference Series, 2019 Abstract Time transfer method PPP is restricted by the real-time and precision of IGS production, and the real-time application have not been widely implemented. Standard Point Positioning(SPP) can satisfy the application for the real-time customer, but the precision is low and is not satisfy the high precision customer.
Feng-feng Shi +3 more
openaire +2 more sources
Remote Sensing, 2022 Integrity is one of the key indicators used to characterize the performance of the global navigation satellite systems (GNSSs) and is closely related to user safety.
Lei Chen +10 more
doaj +1 more source
The Impact of Orbital and Clock Errors on Positioning from LEO Constellations and Proposed Orbital Solutions [PDF]
, 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.
Allahvirdi-Zadeh, Amir +3 more
core +4 more sources
Remote Sensing, 2020 For the global ordinary users, the broadcast ephemeris plays important roles in positioning, navigation and timing (PNT) services. With the construction of a new generation of the BeiDou navigation satellite system (BDS), the development of BDS has ...
Guoqiang Jiao +5 more
doaj +1 more source
POTENTIAL OF STATIC, KINEMATIC, AND RTK IN OPEN SKY USING GPS ONLY AND GPS + GLONASS SIGNALS [PDF]
, 2023 : It is now simple to use Global Navigation Satellite System (GNSS) anyplace due to the rapid developments and variety of GNSS satellite techniques. Several satellite systems, including GPS, GLONASS, BIUDO, and GALILEO, are widely available and used. The
mohamady saba, nasr M saba, nasr
core +4 more sources
Accuracy analysis of GPS broadcast ephemeris in the 2036th GPS week [PDF]
IOP Conference Series: Materials Science and Engineering, 2019 Satellite orbit error is one of main sources in Global Positioning System (GPS) receiver positioning error. Using broadcast ephemeris in navigation message, the receiver can calculate spatial position of GPS satellites, then combine pseudorange measurements and achieve positioning solution.
Wang Xiaolan, Li Shengming, Lihua Ma
openaire +1 more source
Many facets of multiparty broadcasting of known quantum information using optimal quantum resource [PDF]
arXiv, 2023 The no-quantum broadcasting theorem which is a weaker version of the nocloning theorem restricts us from broadcasting completely unknown quantum information to multiple users. However, if the sender is aware of the quantum information (state) to be broadcasted then the above restriction disappears and the task reduces to a multiparty remote state ...
arxiv
The new lunar ephemeris INPOP17a and its application to fundamental physics [PDF]
MNRAS, 476 (2018) 1877-1888, 2017 We present here the new INPOP lunar ephemeris, INPOP17a. This ephemeris is obtained through the numerical integration of the equations of motion and of rotation of the Moon, fitted over 48 years of Lunar Laser Ranging (LLR) data. We also include the 2 years of infrared (IR) LLR data acquired at the Grasse station between 2015 and 2017.
arxiv +1 more source
Calibration and Impact of BeiDou Satellite-Dependent Timing Group Delay Bias
Remote Sensing, 2020 The accuracy of the timing group delay (TGD) transmitted in the broadcast ephemeris is an important factor that affects the service performance of a GNSS system.
Yize Zhang +5 more
doaj +1 more source
A Real-Time Robust Method to Detect BeiDou GEO/IGSO Orbital Maneuvers
Sensors, 2017 The frequent maneuvering of BeiDou Geostationary Orbit (GEO) and Inclined Geosynchronous Orbit (IGSO) satellites affects the availability of real-time orbit, and decreases the accuracy and performance of positioning, navigation and time (PNT) services ...
Guanwen Huang +6 more
doaj +1 more source