Articles in the GNSS Category

Oct 2018 | No Comment

USAF Announces selection of GPS III follow-on contract
The U.S. Air Force announced selection of Lockheed Martin for a fixed-price-type production contract for 22 GPS III Follow- On satellites with a total estimated contract value up to $7.2 billion.
The Air Force operates a total of 77 satellites vital to US national security that provide …

Oct 2018 | No Comment

In the last few months we have been witnessing a remarkable (and, to some extent, surprising) increase of interest for GNSS high accuracy positioning, involving both systems and receivers.

Sep 2018 | No Comment

Reports of problems with GPS appear with increasing frequency. As two of many examples:

Sep 2018 | No Comment

Those in the GNSS/PNT community will say it’s because virtually every technology uses GNSS signals, and most depend upon them. When signals are disrupted, something bad could happen.
But how likely is that? What is the risk and are we willing to take it? These are questions that many governments are starting to ask.

Aug 2018 | No Comment

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…

Jun 2018 | No Comment

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, …

May 2018 | No Comment

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…

May 2018 | No Comment

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

Mar 2018 | No Comment

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

Mar 2018 | No Comment

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…