This article characterizes and presents Global Navigation Satellite Systems in relation to rail
transportation applications. Due to the review character of this article, a synthesis of the …

Unmanned aerial vehicle technology is the most advanced and helpful in almost every area
of interest in human work. These devices become autonomous and can fulfil a variety of …

Positioning, Navigation, and Timing (PNT) information play a vital role in everyday life of
common persons. People greatly rely on Global Navigation Satellite System (GNSS) …

The fusion of terrestrial radio and satellite communications will result in a world completely
connected with sixth-generation (6G) networks. But there is a limitation of power and space …

In urban environments any GNSS receiver is subjected to frequent sudden losses of the line-
ofsight (LOS) signal and to the multipath phenomenon, which drastically reduce the …