Warnant, A novel method for the quantitative assessment of the ionosphere effect on high accuracy GNSS applications which require ambiguity resolution, Journal of Atmospheric and Solar- Terrestrial Physics, in review, 2006.Lejeune, S, Warnant, R (2008) A novel method for the quantitative ...
Effect of Ionosphere on Global Navigation Satellite System and Analysis of the Effects with Real Time Indian Regional Navigation Satellite System Data Positioned at Jain UniversityGlobal Navigation Satellite System (GNSS)Indian Regional Navigation Satellite System (IRNSS)...
Although ionospheric error presents a challenge for navigation, this same effect allows us to use a GNSS receiver to measure ionospheric TEC. The ionosphere causes a smaller delay on signals with a higher frequency. By measuring the discrepancy in travel time between signals of different frequencies...
by the ionosphere free (IF) observable, which is a linear combination of observables on two frequencies such as GPS L1 and L2, accounts for about 99 % of the total ionospheric effect, known as the first order ionospheric effect (Ion1). The remaining 1 % residual range errors (RREs) in...
Abstract The main goal of this paper is to provide a summary of our current knowledge of the ionosphere as it relates to space geodetic techniques, especially the most informative technology, global navigation satellite systems (GNSS), specifically the fully deployed and operational global positioning...
With a three-months delay, NGA and the GPS MCS furthermore decided to adopt PCOs for the ionosphere-free L1/L2 combination based on the antenna model of the International GNSS Service (IGS; Johnston et al. 2017) for best compatibility with the ITRF GNSS contribution. The new PCO values ...
The GPS signals travel through the atmosphere and are affected by space weather in the same way as other technological systems in space and on the ground. Space weather has been defined as the condition where the sun influences solar wind, the magnetosphere, and the ionosphere and thus can ...
effect on the GNSS satellite signals, scintillation is another important effect. Scintillation occurs when irregularities in the electron density of the ionosphere cause rapid changes in the phase and amplitude of the transmitted signals. These changes might cause a GNSS receiver to lose lock on a ...
Ionosphere, and Climate-2 (COSMIC-2), and Jason-3, which carry geodetic-type GNSS receivers with complex antennas using choke rings, also commercial small satellites, especially CubeSats, are located in LEO, which are nevertheless capable of tracking GNSS observations on two or more frequencies. ...
On the impact of GNSS ambiguity resolution: geometry, ionosphere, time and biasesGlobal navigation satellite system (GNSSInteger ambiguity resolution (IARCanonical differencing (CD) transformationUD-SD-DD decompositionEstimable parametersPrecision gain numbersInteger ambiguity resolution (IAR) is the key to ...