Accurately determining one's position has been a recurrent problem in history [1]. It even
precedes the first deep-sea navigation attempts of ancient civilizations and reaches the …

The location service is an important part of the smart city. A unified location service for
outdoor and indoor/overground and underground activity will assist the construction of smart …

It is well-known that GPS is vulnerable to signal spoofing attacks. Although several spoofing
detection techniques exist, they are incapable of mitigation and recovery from stealthy …

Spoofing in the form of transmitting fake GNSS signals is a deliberate attack that aims to
mislead GNSS receivers into generating false position/time solutions. Current work on …

Detection of weak GPS signals is becoming important in many applications of GPS,
including E911 positioning and the secondary use of GPS signals for remote sensing …

Observation of terrestrial GNSS interference (jamming and spoofing) from low Earth orbit
(LEO) is a uniquely effective technique for characterizing the scope, strength, and structure …

Acquisition of very weak GPS signals requires long coherent and incoherent integration.
Increasing the coherent, or predetection, integration time (PIT) improves sensitivity, but is …

Robust signal processing techniques are effective mitigation approaches that can enable
Global Navigation Satellite System (GNSS) receiver operations even in the presence of …

Global Navigation Satellite Systems (GNSS) play a fundamental part on the maritime
navigation. Beyond positioning, GNSS is key for the operation of multiple interfaces on the …

Background theory, a reference design, and demonstration results are given for a Global
Navigation Satellite System (GNSS) interference localization system comprising a …