Now a days more than hundred Global Navigation Satellite System (i.e. GPS, GLONASS, Galileo, Beidou, and IRNSS) signals are available everywhere all the time at free of cost. Hence, dependency on the GNSS technology has been…

Isro develops desi atomic clock, to be used in navigation satellites
In a significant development, Indian Space Research Organisation (Isro) has developed an atomic clock that will be used in navigation satellites to measure precise location data. The space agency currently imports atomic clocks from European aerospace manufacturer Astrium for its navigation satellites.
Tapan Misra, …

Precise levelling is a traditional method to measure height differences. Currently work stages are performed by hand. In this paper the challenges of robotizing precise levelling measurements are discussed. The difference to the existing solutions…

The ITU Membership considered and approved a package of eight ITU-R Recommendations on radionavigation-satellite service (RNSS) systems as listed below…

Self-learning total stations. Onebutton laser scanners. Calibrationfree, forget-the-bubble GNSS receivers…

With the development of modern Global Satellite Navigation System (GNSS), the accuracy performance of satellite positioning and navigation is obviously improved, which extends the range of applications greatly for the GNSS receivers…

Recently, most of the smart phones come with GNSS device. Owing to this, many GNSS based applications are being developed. Some of the applications, in spite of being free of cost, have full of features…

When we talk about Geodesy/ Geomatics education in the country, people normally relate themselves only to remote sensing and GIS with a vague idea of some Surveying practices included. There is hardly any institution in the country where…

The European system EGNOS (European Geostationary Navigation Overlay Service) provide ranging signals transmitted by GEO satellites…

The analysis of space weather and ionospheric disturbance effects on satellite navigation, its performance and operation relies upon either the identification of the deteriorating conditions and setting up the GNSS…