Results 21 to 30 of about 367,994 (260)
Remote Sensing, 2021 The modernized GPS, Galileo, and BeiDou global navigation satellite system (BDS3) offers new potential for time transfer using overlap-frequency (L1/E1/B1, L5/E5a/B2a) observations.
Pengfei Zhang +5 more
doaj +1 more source
Integrity Monitoring for Carrier Phase Ambiguities [PDF]
Journal of Navigation, 2011 The determination of the correct integer number of carrier cycles (integer ambiguity) is the key to high accuracy positioning with carrier phase measurements from Global Navigation Satellite Systems (GNSS). There are a number of current methods for resolving ambiguities including the Least-squares AMBiguity Decorrelation Adjustment (LAMBDA) method ...
Jofre, Martí +9 more
openaire +2 more sources
Indoor carrier phase positioning algorithm based on time-varying clock error elimination
Tongxin xuebao, 2021 To solve the problems of low positioning accuracy of traditional positioning algorithm and unsynchronized system clock in indoor wireless environment, a 3D positioning algorithm was proposed based on the fusion of triple-differential carrier phase ...
Shaoshuai FAN +4 more
doaj
Determination of Clock Offset Using GPS Carrier Phase Measurements [PDF]
Journal of Astronomy and Space Sciences, 2005 Every time laboratory in the world follows an international standard time scale and GPS (Global Positioning System) is playing an important role. Korea Research Institute of Standards and Science is also operating a permanent GPS station for time ...
Jihyun Ha, Kwan-Dong Park, Chang-Bok Lee
doaj +1 more source
Remote Sensing, 2021 The term deviation frequency (fd) denotes the boundary between the variable part of the amplitude and phase scintillation spectrum and the part of uninformative noises.
Vladislav Demyanov +3 more
doaj +1 more source
Performance of GPS sidereal filters during a satellite outage
Journal of Geodetic Science, 2017 Sidereal filtering is the name of a technique used to reduce the effect of multipath interference on a GPS position time series associated with a static or quasi-static antenna.
Atkins C., Ziebart M. K.
doaj +1 more source
Remote Sensing, 2019 The covariance of real-time global positioning system (GPS) orbits has been drawing attention in various fields such as user integrity, navigation performance improvement, and fault detection.
Sunkyoung Yu +3 more
doaj +1 more source
Mathematics, 2023 Global Navigation Satellite Systems (GNSS) are used to provide accurate position, navigation, and time (PNT) information to users in various sectors of our society including transportation.
Dong-Kyeong Lee +2 more
doaj +1 more source
High-precision indoor fast positioning algorithm based on carrier phase
Tongxin xuebao, 2022 In order to improve the positioning accuracy and the speed of position solution in indoor wireless environment, a high-precision indoor fast positioning algorithm based on carrier phase was proposed.By introducing the reference terminal, the influence of
Shaoshuai FAN +3 more
doaj
An Increase of GNSS Data Time Rate and Analysis of the Carrier Phase Spectrum
Remote Sensing, 2023 Natural hazards and geomagnetic disturbances can generate a combination of atmospheric and ionospheric waves of different scales. The carrier phase of signals of global navigation satellite system (GNSS) can provide the highest efficiency to detect and ...
Vladislav Demyanov +3 more
doaj +1 more source