Results 81 to 90 of about 95,608 (153)
Blind Adaptive Beamformer Based on Orthogonal Projections for GNSS [PDF]
, 2012 The quality of the ranging data provided by a global navigation satellite systems (GNSS) receiver largely depends on the synchronization error, that is, on the accuracy of the propagation time-delay estimation of the line-of-sight (LOS) signal.
Noll, Tobias G. +4 more
core
Real-time ionospheric tomography using GNSS-TEC
High-resolution ionospheric structure estimation with low latency is essential for the stable maintenance of various future services. However, no papers have yet addressed this issue. In this paper, a new algorithm for real-time high-resolution ionospheric tomography within a large area is developed. The algorithm uses the property that the ionospheric
Satoru Yoneyama, Ken Umeno
openaire +1 more source
Airglow imager, GNSS-TEC, and Ionosonde data on 15 September 2018
, 2023 These datasets are related to an event observed by the Hanle imager in which multiple dark bands of MSTID were involved in two dynamic interactions. Using these datasets, we have explored the plausible mechanisms behind the observed interactions.
Patgiri, Dipjyoti +10 more
openaire +2 more sources
Earth and Space Science, Volume 13, Issue 8, August 2026.Abstract A set of fresh Equatorial Plasma Bubbles (EPBs) formed during pre‐sunrise hours in the Southeast Asian sector amid the recovery phase of May 2024 geomagnetic storm. They offered new insights into their formation mechanism. This study used Total Electron Content (TEC) and Rate of TEC Index maps over Indonesia, along with ionosondes in Thailand ...
Sri Ekawati +9 more
wiley +1 more source
On Backward Compatibility in GNSS Signal Design [PDF]
, 2011 This work further develops tools and methodologies for systematic GNSS signal design. Inter and intra system multiple access interference (MAI), synchronization accuracy, time-delay estimation robustness, and backward compatibility with respect to ...
Antreich, Felix +3 more
core
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.Abstract Satellites such as the European Space Agency's Sentinel‐1 constellation allow for the creation of unprecedented volumes of Interferometric Synthetic Aperture RaDAR data that contains both deformation and atmospheric signals. Correction methods have been developed to reduce these atmospheric signals, but they do not generally perform well on ...
M. Gaddes, A. Hooper, S. Ebmeier
wiley +1 more source
AtmosphereThe relationship between ionospheric research and global navigation satellite systems (GNSS) can be analysed through two approaches. The direct approach utilises ionospheric models to mitigate its influence, while the indirect approach leverages GNSS ...
Dušan Petković +6 more
doaj +1 more source
A new approach for ionospheric TEC prediction at a GPS station
, 2016 Ionosphere can adversely affect radio signals that propagate through the ionosphere. Due to this, ionosphere is considered as a major error source for space-based radio systems such as Global Navigation Satellite Systems (GNSS) and remote sensing radars.
Berdermann, Jens +2 more
core +1 more source
Assessing the Performance of GNSS Signal Acquisition: New Signals and GPS L1 C/A Code
, 2014 International audienceThe low power and spread spectrum nature of GNSS signals make their detection and acquisition a key, but challenging aspect of receiver processing designs.
Hein, Günter +5 more
core +1 more source
Modeling the GNSS Rural Radio Channel: Wave Propagation Effects caused by Trees and Alleys [PDF]
, 2009 Among the various physical influencing factors with the potential to degrade the overall performance of a global navigation satellite system (GNSS), the behavior of the radio wave propagation channel occupies doubtlessly a central role.
Lehner, A. +4 more
core