Estimation and evaluation of COSMIC radio occultation excess phase using undifferenced measurements [PDF]
Atmospheric Measurement Techniques, 2017 In the GPS radio occultation technique, the atmospheric excess phase (AEP) can be used to derive the refractivity, which is an important quantity in numerical weather prediction.
P. Xia, S. Ye, K. Jiang, D. Chen
doaj +1 more source
Evaluation of Network RTK Positioning Performance Based on BDS-3 New Signal System
Remote Sensing, 2021 The BeiDou navigation satellite system (BDS-3) has been deployed and provides positioning, navigation, and timing (PNT) services for users all over the world.
Pengxu Wang +5 more
doaj +1 more source
ZUPT Aided GNSS Factor Graph with Inertial Navigation Integration for Wheeled Robots [PDF]
, 2021 In this work, we demonstrate the importance of zero velocity information for global navigation satellite system (GNSS) based navigation. The effectiveness of using the zero velocity information with zero velocity update (ZUPT) for inertial navigation applications have been shown in the literature.
arxiv +1 more source
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
GEOMETRIC DILUTION OF PRECISION OF THE GNSS FOR MARS (GNSS FATIMA)
Aviation, 2016 Positioning on Mars is one of the critical aspects of every planetary mission. Current complex planetary exploration systems (orbital and surface) rely on complex navigation and positioning systems, which make these systems complicated, expensive and their missions dangerous.
Kozar, Jozef +2 more
openaire +5 more sources
A new approach for GNSS tomography from a few GNSS stations [PDF]
Atmospheric Measurement Techniques, 2018 Abstract. The determination of the distribution of water vapor in the atmosphere plays an important role in the atmospheric monitoring. Global Navigation Satellite Systems (GNSS) tomography can be used to construct 3D distribution of water vapor over the field covered by a GNSS network with high temporal and spatial resolutions.
N. Ding +6 more
openaire +4 more sources
Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1 [PDF]
, 2019 : Global Navigation Satellite System (GNSS) reflected signals can be used to remotely sense the Earth’s surface, known as GNSS reflectometry (GNSS-R). The GNSS-R technique has been applied to numerous areas, such as the retrieval of wind speed, and the
Benson, Craig +5 more
core +2 more sources
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
GPS + BDS Network Real-Time Differential Positioning Using a Position Domain Estimation Method
Remote Sensing, 2019 The network real-time differential positioning technique is a good choice for meter and sub-meter level’s navigation. More attention has been paid to the Global Positioning System (GPS) and GPS + GLONASS (GLObal NAvigation Satellite System) network
Jianhui Cui +8 more
doaj +1 more source
Characterizing Power Consumption of Dual-Frequency GNSS of a Smartphone
, 2020 Location service is one of the most widely used features on a smartphone. More and more apps are built based on location services. As such, demand for accurate positioning is ever higher.
Karki, Bikram, Won, Myounggyu
core +1 more source