Results 151 to 160 of about 18,773 (179)

Alternative Architecture for Dual Frequency Multi-Constellation GBAS

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2021
This paper describes an alternative architecture candidate proposal for consideration for the future Dual Frequency MultiConstellation (DFMC) Ground Based Augmentation System (GBAS). The GBAS architecture candidate builds off the work done over the last 10 years by the Single European Sky Air Traffic Management Research (SESAR) program.
Tim Murphy, Matt Harris, Gary McGraw, Joel Wichgers, Linda Lavik, Morten Topland, Mutaz Tuffaha, Susumu Saito   +7 more
openaire   +1 more source

Multi-Constellation T-RAIM: An Experimental Evaluation

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2017
Time-Receiver Autonomous Integrity Monitoring (T-RAIM) algorithms assess the reliability of the timing solution provided by a Global Navigation Satellite System (GNSS) timing receiver. Timing receivers process GNSS observables under the assumption that their antenna is static or that their position is known.
Ciro Gioia, Daniele Borio
openaire   +1 more source

Satellite selection methods for multi-constellation advanced RAIM

Advances in Space Research, 2020
Abstract The increased number of potential threat modes under multi-constellation advanced receiver autonomy integrity monitoring (ARAIM) requires an increase in the number of subsets and a correspondingly high computational load. A new satellite selection method based on integrity support message (ISM) parameters is proposed and compared with GDOP ...
Silong Luo, Li Wang, Rui Tu, Weiqi Zhang, Jiancheng Wei, Cunting Chen   +5 more
openaire   +1 more source

A robust multi-constellation time-differenced carrier phase solution

GPS Solutions, 2021
In a multi-GNSS time-differenced carrier phase (TDCP) solution, carrier phase measurements from all available constellations can be combined into a single measurement model. This solution benefits from the abundance of measurements and can produce a very precise displacement estimation. However, due to the variety of measurements and constellations, it
Zhen Zhu, Eric Vinande, Jason Pontious, Brenton Hall, Nihar Shah   +4 more
openaire   +1 more source

A new GNSS multi constellation simulator: NAVYS

2010 5th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC), 2010
With the multiplication of navigation systems (GPS, GALILEO, GLONASS, QZSS, …) and the large variety of signals to be received, GNSS constellation simulators need to be more and more flexible. In the scope of its navigation activities, the CNES has expressed the need for a simulator that, in addition to allow the test of a large variety of receivers ...
Geraldine Artaud, Antoine de Latour, Joel Dantepal, Lionel Ries, Nicolas Maury, Jean-Christophe Denis, Eric Senant, Thomas Bany   +7 more
openaire   +1 more source

Multi-Constellation DGNSS - A Time to Revise Definitions

2020 European Navigation Conference (ENC), 2020
A paper describes a novel approach to computing DGNSS solution when multi-GNSS measurement observables are available. The approach is applicable to situations when not all the GNSS observables are accompanied with DGNSS corrections. A commonly used “classical” recommendation for such cases is to discard observables which do not have corrections ...
Sergey Averin, Andrey Gapon, Pavel Ignatev   +2 more
openaire   +1 more source

Research on Properties of DOP in Multi-constellation

2014 Seventh International Symposium on Computational Intelligence and Design, 2014
With the continuous development and improvement of GNSS, the multi-constellation will be the main navigation mode in the future. Dilution of precision (DOP) has been widely used as an accuracy metric and for navigation and tracking systems. Properties of DOP in multi-constellation are one of the crucial elements to be studied.
Wenwen Wang, Bin Huang
openaire   +1 more source

On Solving the Multi-Constellation Pseudorange Equations

Navigation, 2010
Future Global Navigation Satellite System (GNSS) receivers may employ a combination of different navigation satellite constellations to provide positioning, navigation, and timing information. As different constellations may not be time-synchronized, the multi-constellation navigation problem involves the determination of position of the receiver and ...
openaire   +1 more source

Acquisition algorithm for GNSS multi-constellation signals

Scientia Sinica Physica, Mechanica & Astronomica, 2011
Multi-constellation receivers will become popularity since the current satellite navigation systems are transforming from the solo GPS to multi GNSS constellations. The traditional fast acquisition algorithms in time domain and frequency domain for signal of special satellite system have their own shortages.
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Multi-constellation GNSS observations of equatorial ionospheric scintillation

2014 XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), 2014
During the past two decades, GPS receivers have gained tremendous popularity as passive sensing instruments for ionospheric scintillation monitoring due to their low cost and GPS signals' distributed global coverage. The emergence of Russian's GLONASS, China's Beidou, and the European Union's Galileo satellites has nearly doubled the number of ...
Yu Morton, Harrison Bourne, Mark Carroll, Yu Jiao, Nazelie Kassabian, Steve Taylor, Jun Wang, Dongyang Xu, Hang Yin   +8 more
openaire   +1 more source