Clock performance as a critical parameter in navigation satellite systems [PDF]
, 1978 The high performance of available oscillators has permitted the development of invaluable navigation and geodetic satellite systems. However, still higher performance oscillators would further improve the accuracy or flexibility of the ...
Anderle, R. J.
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Authentication of Satellite Navigation Signals by Wiretap Coding and Artificial Noise
, 2018 In order to combat the spoofing of global navigation satellite system (GNSS) signals we propose a novel approach for satellite signal authentication based on information-theoretic security.
Formaggio, Francesco, Tomasin, Stefano
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Sensors, 2020 On the basis of realizing regional navigation, the Quasi-Zenith Satellite System (QZSS) has advanced navigation function, which leads to the broadcasting of more signals in a single frequency of QZSS signals. Current signal transmission technology cannot
Hongjun Ye +6 more
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ISPRS International Journal of Geo-InformationSlant range geometry plays a crucial role in interpreting synthetic aperture radar (SAR) observations, especially in converting line-of-sight (LOS) surface deformations to actual vertical subsidence. This paper proposes a new conversion model to retrieve
Jie Liu +4 more
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Multi-path suppression algorithm for through-the-wall imaging
The Journal of Engineering, 2019 Through-the-wall radar has been used in rescue missions, behind-the-wall targets detection, surveillance and reconnaissance etc. However, through-the-wall radar encounters two major problems in complex environment.
Yikun Zhao +4 more
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Enhancing public safety and security of critical national infrastructure utilizing the Nigerian Satellite Augmentation System (NSAS) [PDF]
, 2015 After the First World War, radio time signals offered alternative technology for determination of the Greenwich time and thus longitude at sea. The first manifestation of new technology capable of usurping the super accurate mechanical chronometers ...
Chatwin, Chris, Lawal, Lasisi S
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The development of GPS navigation systems in civil aircraft [PDF]
, 2013 The industry of civil aviation is developing in a fast manner to occupy the increasing needs for a fast, safe and comfortable transportation. To achieve these needs, some effective programs, plans, and systems designs are required.
Gomes, Chandima +3 more
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Navigation and attitude reference for autonomous satellite launch and orbital operations [PDF]
The navigation and attitude reference performance of a strapdown system are investigated for applications to autonomous satellite launch and orbital operations.
Kau, S. P.
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Application of Space-Based Orientation Observation in Orbit Determination of BeiDou Satellites
AerospaceWhen a navigation constellation depends exclusively on inter-satellite links for autonomous orbit determination, the absence of inertial frame orientation measurements can result in the accumulation of rotational errors across the entire constellation ...
Xiaojie Li +7 more
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The applications of satellites to communications, navigation and surveillance for aircraft operating over the contiguous United States. Volume 1 - Technical report [PDF]
Satellite applications to aircraft communications, navigation, and surveillance over US including synthesized satellite network and aircraft equipment for air traffic ...
Craigie, J. H. +3 more
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