Results 41 to 50 of about 7,963 (189)
The GPS Assimilator: a Method for Upgrading Existing GPS User Equipment to Improve Accuracy, Robustness, and Resistance to Spoofing [PDF]
, 2010 Preprint of the 2010 ION GNSS Conference Portland, OR, September 21–24, 2010A conceptual method is presented for upgrading existing GPS user equipment, without requiring hardware or software modifications to the equipment, to improve the equipment’s ...
Bhatti, Jahshan +2 more
core +2 more sources
Energy Science &Engineering, EarlyView.By manipulating current and voltage measurements, an assailant can induce unwanted relay action while attempting to avoid detection. Detecting advanced cyber intrusions in power protection environments requires specialised data analysis and anomaly detection methods.
Feras Alasali +6 more
wiley +1 more source
Sensors, 2018 As a structural interference, spoofing is difficult to detect by the target receiver while the advent of a repeater makes the implementation of spoofing much easier.
Yanbing Guo, Lingjuan Miao, Xi Zhang
doaj +1 more source
Quantum Security for the Physical Layer [PDF]
, 2013 The physical layer describes how communication signals are encoded and transmitted across a channel. Physical security often requires either restricting access to the channel or performing periodic manual inspections.
Humble, Travis S.
core +2 more sources
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada +4 more
wiley +1 more source
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2022 Long-term stability and accurate time synchronization are at the core of timing network facilities in several critical infrastructures, such as in telecommunication networks. In these applications, timing signals disciplined by Global Navigation Satellite Systems (GNSS) receivers, i.e., One Pulse-per-Second (1-PPS), complement Primary Reference Time ...
Alex Minetto +3 more
openaire +2 more sources
Galileo and EGNOS as an asset for UTM safety and security [PDF]
, 2019 GAUSS (Galileo-EGNOS as an Asset for UTM Safety and Security) is a H2020 project1 that aims at designing and developing high performance positioning systems for drones within the U-Space framework focusing on UAS (Unmanned Aircraft System) VLL (Very Low ...
Andrade-Cetto, Juan +7 more
core
Small, EarlyView.A microstructured PVC‐based tribo‐electromagnetic nanogenerator (TEMNG) enables simultaneous harvesting of biomechanical and ambient electromagnetic energy. The hybrid device achieves high electrical outputs while supporting wearable sensing, gait monitoring, and self‐powered touch interfaces.
Ching‐Te Kuo +4 more
wiley +1 more source
Developing a Spoofer Error Envelope for Tracking GNSS Signals
Navigation, 2022 Global navigation satellite systems (GNSSs) are the most significant service for global positioning and timing. The high relevance and wide spread of these systems contrast with the risk for interference or even manipulations of GNSS signals.
Tobias Bamberg +2 more
doaj +1 more source
Trust model for certificate revocation in Ad hoc networks [PDF]
, 2007 In this paper we propose a distributed trust model for certificate revocation in Adhoc networks. The proposed model allows trust to be built over time as the number of interactions between nodes increase.
Gheorghita Ghinea +9 more
core +1 more source