Results 21 to 30 of about 228,586 (380)
Global Navigation Satellite System Spoofing Detection in Inertial Satellite Navigation Systems
Inventions, 2023 The susceptibility of global navigation satellite systems (GNSSs) to interference significantly limits the possibility of their use. From the standpoint of possible consequences, the most dangerous interference is the so-called spoofing.
Maksim Zharkov +3 more
doaj +1 more source
Design of Monitoring Framework for Malicious Hidden Process on CloudStack [PDF]
Jisuanji gongcheng, 2016 Most cloud platforms like CloudStack have no safety plug-in or function to protect the virtual machines.Aiming at this problem,this paper proposes a monitoring framework for malicious hidden process based on Xen virtual machine monitor on CloudStack ...
CUI Jingsong,TIAN Changyou,GUO Chi,YIN Xue
doaj +1 more source
Global navigation satellite system [PDF]
, 2013 The last few years have shown an increased interest in the commercialization of the global navigation satellite system (GNSS), which is often referred to as the global positioning system (GPS) in various applications. A GPS system uses spread spectrum signals-binary phase-shift keying (BPSK)-emitted from satellites in space for position and time ...
+4 more sources
A Non-Linear Filtering Algorithm Based on Alpha-Divergence Minimization
Sensors, 2018 A non-linear filtering algorithm based on the alpha-divergence is proposed, which uses the exponential family distribution to approximate the actual state distribution and the alpha-divergence to measure the approximation degree between the two ...
Yarong Luo +3 more
doaj +1 more source
Electron density retrieval from truncated Radio Occultation GNSS data [PDF]
, 2019 This paper summarizes the definition and validation of two complementary new strategies, to invert incomplete Global Navigation Satellite System Radio-Occultation (RO) ionospheric measurements, such as the ones to be provided by the future EUMETSAT Polar
Cardellach Galí, Estel +3 more
core +2 more sources
International Journal of Distributed Sensor Networks, 2021 Global navigation satellite system is indispensable to provide positioning, navigation, and timing information for pedestrians and vehicles in location-based services.
Fan Qin +3 more
doaj +1 more source
Spoofing and Anti-Spoofing Technologies of Global Navigation Satellite System: A Survey
IEEE Access, 2020 A large number of facts prove that Global Navigation Satellite System (GNSS) has certain security risks and is threatened by attacks. In particular, GNSS civilian signal receivers have some vulnerability in responding to spoofing attack and jamming ...
Zhi-jun Wu +4 more
semanticscholar +1 more source
Predicting Long-Term Stability of Precise Oscillators under Influence of Frequency Drift
Sensors, 2018 High-performance oscillators, atomic clocks for instance, are important in modern industries, finance and scientific research. In this paper, the authors study the estimation and prediction of long-term stability based on convex optimization techniques ...
Weiwei Cheng, Guigen Nie
doaj +1 more source
A review of satellite positioning systems for civil engineering [PDF]
, 2015 This paper informs and updates civil engineers of the status and advances of global navigation satellite systems, and how this will affect the profession in the near future. An overview of the various global and regional systems is given. Real data are
Brown, C, Roberts, GW, Tang, X
core +2 more sources
, 2021 Cut-to-length harvesters collect detailed information on the dimensions and characteristics of individual harvested trees. When equipped with global navigation satellite system (GNSS) receivers and motion sensors, the obtained measurements can be linked ...
Lennart Noordermeer +4 more
semanticscholar +1 more source