Results 31 to 40 of about 2,401,485 (384)
An Improved In Situ and Satellite SST Analysis for Climate
, 2002 A weekly 1° spatial resolution optimum interpolation (OI) sea surface temperature (SST) analysis has been produced at the National Oceanic and Atmospheric Administration (NOAA) using both in situ and satellite data from November 1981 to the present.
R. Reynolds +4 more
semanticscholar +1 more source
On the virtualization and dynamic orchestration of satellite communication services [PDF]
, 2016 Key features of satellite communications such as wide-scale coverage, broadcast/multicast support and high availability, together with significant amounts of new satellite capacity coming online, anticipate new opportunities for satellite communications ...
Ahmed, Toufik +8 more
core +2 more sources
Analysis of Galileo signal-in-space range error and positioning performance during 2015–2018
Satellite Navigation, 2020 A long-term analysis of signal-in-space range error (SISRE) is presented for all healthy Galileo satellites, and the first pair of full operational capability satellites in wrong elliptical orbits.
Weiwang Wu, Fei Guo, Jiazhu Zheng
doaj +1 more source
Binary phase hopping based spreading code authentication technique
Satellite Navigation, 2021 Civil receivers of Global Navigation Satellite System (GNSS) are vulnerable to spoofing and jamming attacks due to their signal structures. The Spreading Code Authentication (SCA) technique is one of the GNSS message encryption identity authentication ...
Shenran Wang +3 more
doaj +1 more source
, 1997 Gridded fields (analyses) of global monthly precipitation have been constructed on a 2.5° latitude–longitude grid for the 17-yr period from 1979 to 1995 by merging several kinds of information sources with different characteristics, including gauge ...
P. Xie, P. Arkin
semanticscholar +1 more source
Satellite-based entanglement distribution over 1200 kilometers [PDF]
Science, 2017 Entangled photons are distributed over vast distances using a satellite-to-ground link. Space calling Earth, on the quantum line A successful quantum communication network will rely on the ability to distribute entangled photons over large distances ...
Juan Yin +33 more
semanticscholar +1 more source
A Survey on Nongeostationary Satellite Systems: The Communication Perspective [PDF]
IEEE Communications Surveys and Tutorials, 2021 The next phase of satellite technology is being characterized by a new evolution in non-geostationary orbit (NGSO) satellites, which conveys exciting new communication capabilities to provide non-terrestrial connectivity solutions and to support a wide ...
H. Al-Hraishawi +4 more
semanticscholar +1 more source
Influence of the GEO satellite orbit error fluctuation correction on the BDS WADS zone correction
Satellite Navigation, 2020 Decimeter-level service is provided by the BeiDou satellite navigation system wide area differential service (BDS WADS) for users who collect carrier phase measurements.
Binghao Wang +4 more
doaj +1 more source
Assessing IGS GPS/Galileo/BDS-2/BDS-3 phase bias products with PRIDE PPP-AR
Satellite Navigation, 2021 Ambiguity Resolution in Precise Point Positioning (PPP-AR) is important to achieving high-precision positioning in wide areas. The International GNSS (Global Navigation Satellite System) Service (IGS) and some other academic organizations have begun to ...
Jianghui Geng, Songfeng Yang, Jiang Guo
doaj +1 more source
Satellite operators as group actions on knot concordance [PDF]
, 2015 Any knot in a solid torus, called a pattern or satellite operator, acts on knots in the 3-sphere via the satellite construction. We introduce a generalization of satellite operators which form a group (unlike traditional satellite operators), modulo a ...
Davis, Christopher W., Ray, Arunima
core +1 more source