This paper summarizes current state-of-the-art navigation results with multi-constellation low
Earth orbit (LEO) satellite signals of opportunity. Experimental results with four LEO satellite …

In the past few years, the use of Unmanned Aerial Vehicles (UAVs) has expanded and now
reached mainstream levels for applications such as infrastructure inspection, agriculture …

Air pollution is a significant problem in big cities due to the rapid increase of anthropogenic
activities and severe traffic congestion. Therefore, real-time and micro tools for air monitoring …

Detection and reduction of global positioning system (GPS) jamming threats are inevitable
considering importance of satellite navigation in different applications such as fixed and …

Global navigation satellite system (GNSS) technology is evolving at a rapid pace. The rapid
advancement demands rapid prototy** tools to conduct research on new and innovative …

Spoofing attacks are one of the most critical threats against secure global navigation satellite
system (GNSS) positioning. Since correct positioning is a must in many vehicle-to-everything …

In the presented work, based on the representation of the total flow of range request signals,
as well as intentional correlated and uncorrelated interference to a range-finding radio …

This paper presents the design, proof-of-concept implementation, and preliminary
performance assessment of an affordable real-time High-Sensitivity (HS) Global Navigation …

This paper explores the potentialities of deploying vehicular Cooperative Positioning (CP)
systems in urban scenarios utilizing real-world data collected via experimental campaigns …

Research has shown that Global Navigation Satellite System (GNSS) signals reflecting off
the Earth's surface can be detected by receivers in low Earth orbit (LEO). The weak reflected …