Results 91 to 100 of about 167,096 (220)
Distribution of clock correction and ephemeris parameters in broadcast navigation messages [PDF]
, 2021 Ivan Lapin +4 more
openalex +1 more source
Pembuatan Program Ekstraksi Dan Penentuan Posisi Satelit Dari File Navigation Rinex Versi 2.10 [PDF]
, 2015 In positioning using the GPS the first step that we must do is calculating the satellite position during the observation. The precision of a point in a GPS survey is affected by the precision of the satellite position that recorded in the observation ...
Rahmat, V. (Vauzul) +2 more
core
IET Radar, Sonar &Navigation, Volume 18, Issue 4, Page 564-576, April 2024.The paper describes a processing scheme to extract discriminating features from Inverse Synthetic Aperture Radar images of objects in space and how these discriminators can be used to recognise or to estimate the intention of these objects. It describes how electromagnetic simulation can be used to create images to train the object recognition ...
Mikhail Cherniakov +4 more
wiley +1 more source
International Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.Under most circumstances, the current studies related to precision orbit determination (POD) using intersatellite link (ISL) measurements are limited to ISL ranging components. In this article, we would like to discuss the idea of jointly using the GNSS observations and ISL ranging and orientation measurements of the Tianzhou‐6 (TZ‐6) spacecraft to ...
Haijian Fang +9 more
wiley +1 more source
A Real-Time Detection Method for BDS Signal in Space Anomalies
Sensors, 2019 Signal In Space (SIS) anomalies in satellite navigation systems can degrade satellite-based navigation and positioning performance. The occurrence of SIS anomalies from the BeiDou navigation satellite System (BDS) may be more frequent than for the Global
Chun Cheng +3 more
doaj +1 more source
Investigation on Reference Frames and Time Systems in Multi-GNSS
Remote Sensing, 2018 Receivers able to track satellites belonging to different GNSSs (Global Navigation Satellite Systems) are available on the market. To compute coordinates and velocities it is necessary to identify all the elements that contribute to interoperability of ...
Luca Nicolini, Alessandro Caporali
doaj +1 more source
VEGA Pathfinder navigation for Giotto Halley encounter [PDF]
Results of the VEGA Pathfinder concept which was used to successfully target the European Space Agnecy's Giotto spacecraft to a 600 km encounter with the comet Halley are presented.
Ellis, J., Mcelrath, T. P.
core +1 more source
EGNOS based virtual reference stations [PDF]
, 2008 We propose the use of the European Geostationary Navigation Overlay Service (EGNOS) data - real time on line data provided by SISNeT - to develop Virtual Reference Stations and, thus, increase the quality of the Position, Velocity an Time (PVT) solution ...
Malheiro, Benedita +1 more
core
Simulation and analysis of differential global positioning system for civil helicopter operations [PDF]
A Differential Global Positioning System (DGPS) computer simulation was developed, to provide a versatile tool for assessing DGPS referenced civil helicopter navigation.
Cabak, A. R., Denaro, R. P.
core +1 more source
A Technique for Determining the Carrier Phase Differences between Independent GPS Receivers during Scintillation [PDF]
, 2007 A method for recovering the carrier phase differences between pairs of independent GPS receivers has been developed and demonstrated in truth-model simulations.
Humphreys, Todd E. +2 more
core +1 more source