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3.011  Articles
1 of 302 pages  |  10  records  |  more records»
The signal transmission and position quality obtained by GNSS positioning directly depends on the time control. The atomic clocks aboard the satellites are responsible for this control. In this research, the satellites clock errors of GPS are studied, usi... see more

In this study, Global positioning system (GPS) simulation is employed to study the effect of radio frequency interference (RFI) on the accuracy of two handheld GPS receivers; Garmin GPSmap 60CSx (evaluated GPS receiver) and Garmin GPSmap 60CS (referenc... see more

With the first phase of COMPASS/BeiDou-2 (BDS) completed, the assessment ofpositioning performance and the characterization of its system are analyzed andpresented. Pseudo-range and carrier phase measurements modulated on B1 and B2have been collected in S... see more

On May 2018 the world’s first dual-frequency Global Navigation Satellite System (GNSS) smartphone produced by Xiaomi equipped with a Broadcom BCM47755 chip was launched. It is able to receive L1/E1/ and L5/E5 signals from GPS, Galileo, Beidou, and G... see more

With the advent of Industry 4.0, the trend of its implementation in current factories has increased tremendously. Using autonomous mobile robots that are capable of navigating and handling material in a warehouse is one of the important pillars to convert... see more

Galileo and Copernicus are not only flagship technology programs of the European Union: they can be the ambassadors of European cooperation in other continents, an effective opportunity for growth and development together. On February 14th and 15th this y... see more

Galileo and Copernicus are not only flagship technology programs of the European Union: they can be the ambassadors of European cooperation in other continents, an effective opportunity for growth and development together. On February 14th and 15th this y... see more

The effect of measurements errors of distances to satellites on the accuracy of attitude determination is analyzed.  Matrix form of analysis and the least squares criterion are used. Algorithm for determining the angular orientation of the satellite ... see more

In December 2014, Brazil and China successfully launched the CBERS-4 satellite, the fourth generation of CBERS satellites. In the payload module, the satellite carries the MUXCAM, a 20 m/pixel spatial resolution multispectral camera. The MUXCAM was built ... see more

1 of 302 pages  |  10  records  |  more records»