Articles in the GNSS Category

Jun 2019 | No Comment

The emergence of Global Navigation Satellite System (GNSS) has provided a remarkable opportunity to determine and manage position…

May 2019 | No Comment

Soil Moisture is a key component of water cycle budget [6]. It is fundamental measurement in the fields of hydrology, flooding, agriculture etc…

May 2019 | No Comment

GNSS signals are quite vulnerable to interference, jamming and spoofing

Dinesh Manandhar

Associate Professor (Project) Center for Spatial Information Science (CSIS) The University of Tokyo, Japan

Today, when you buy a computer, you also buy an anti-virus software. But why? It’s because you don’t feel secure with virus attacks to your brand new computer and you would like …

Mar 2019 | No Comment

What is an “epoch” and how does this cause a GPS Week Rollover issue?

Feb 2019 | No Comment

In the past decades, Global Navigation Satellite Systems (GNSS) have revolutionized positioning and navigation activities…

Nov 2018 | No Comment

Geological data show that the region of Central-west Bulgaria is characterized by the presence of active deformations and modern seismic activity. The southern region of Sofia shows a complex tectonics formed by the intersection of several active faults.

Nov 2018 | No Comment

Due to rapidly increasing applications of GNSS dependent systems, motivation has increased to spoof these signals for illegal or concealed transportation and to mislead receiver timing used by critical infrastructure. Detection and mitigation of spoofing…

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.