Results 11 to 20 of about 46,869 (239)
Accuracy Analysis of GNSS (GPS, GLONASS and BEIDOU) Obsevation For Positioning [PDF]
E3S Web of Conferences, 2019 Global Navigation Satellite System called GNSS is a term used for the entire global navigation that already operate or are in the planning for the future. Some of the satellite that can be used are GPS (Global Positioning System) operated by USA, GLONASS
Khomsin +3 more
doaj +1 more source
Predicting Long-Term Stability of Precise Oscillators under Influence of Frequency Drift
Sensors, 2018 High-performance oscillators, atomic clocks for instance, are important in modern industries, finance and scientific research. In this paper, the authors study the estimation and prediction of long-term stability based on convex optimization techniques ...
Weiwei Cheng, Guigen Nie
doaj +1 more source
NaviSoC: High-Accuracy Low-Power GNSS SoC with an Integrated Application Processor
Sensors, 2020 A dual-frequency all-in-one Global Navigation Satellite System (GNSS) receiver with a multi-core 32-bit RISC (reduced instruction set computing) application processor was integrated and manufactured as a System-on-Chip (SoC) in a 110 nm CMOS ...
Tomasz Borejko +11 more
doaj +1 more source
Algorithms, 2019 The characteristic of the satellite repeat shift time can reflect the status of the satellite operation, and is also one of the key factors of the sidereal filtering multipath correction.
Yanxi Yang, Jinguang Jiang, Mingkun Su
doaj +1 more source
Remote Sensing, 2019 Middle-sized earth- and rock-filled dams with clay cores continue to settle by approximately 0.5⁻1.5% of their height for approximately 1⁻3 years after their construction phase.
Tao Li +8 more
doaj +1 more source
Satellite Navigation, 2022 Over the past years the International Global Navigation Satellite System (GNSS) Monitoring and Assessment System (iGMAS) Wuhan Innovation Application Center (IAC) dedicated to exploring the potential of multi-GNSS signals and providing a set of products ...
Xingxing Li +6 more
doaj +1 more source
Environmental Context Detection for Adaptive Navigation using GNSS Measurements from a Smartphone [PDF]
, 2018 The signals available for navigation depend on the environment. To operate reliably in a wide range of different environments, a navigation system is required to adopt different techniques based on the environmental contexts.
Gao, H, Groves, D
core +1 more source
Integrated GNSS Attitude Determination and Positioning for Direct Geo-Referencing
Sensors, 2014 Direct geo-referencing is an efficient methodology for the fast acquisition of 3D spatial data. It requires the fusion of spatial data acquisition sensors with navigation sensors, such as Global Navigation Satellite System (GNSS) receivers.
Nandakumaran Nadarajah +2 more
doaj +1 more source
A MEMS-INS assisted GNSS vector tracking loop for robust navigation based on cubature Kalman Filter
Measurement + Control, 2023 The occlusion of shade leads to the intermittent reception of satellite signals, which subsequently results in a decline of the positioning accuracy of Global Navigation Satellite System (GNSS).
Wei Liu +5 more
doaj +1 more source
Remote Sensing, 2021 With the realization of global navigation satellite system (GNSS) completion, GNSS reflectometry (GNSS-R) has become increasingly popular due to the advantages of global coverage and the availability of multiple sources in terms of earth remote sensing ...
Xiang Lan +4 more
doaj +1 more source