Results 351 to 360 of about 2,425,563 (382)

Satellite-to-Satellite-Tracking (SST)

2021
Im Kap. 12 wird das bereits im letzten Kapitel beschriebene Verfahren des Satellite-to-Satellite-Trackings (SST) genauer charakterisiert. Insbesondere im Zusammenhang mit dem GRACE-Projekt bzw. dem GRACE-Nachfolge-Projekt, das eine unglaubliche Relativentfernungsmessgenauigkeit aufweist, wird man auch in Zukunft noch hohe Gravitationsfeldgenauigkeiten ...
openaire   +2 more sources

Satellites rock! [satellite radio]

IEE Review, 2003
Is part of the world tuning into satellite radio? Noah Samara, the chairman and CEO of WorldSpace, founded the company in 1990. Using untapped bandwidth in the gigahertz spectrum and the broad geographical coverage of a satellite beam, he envisaged a revolution in radio broadcasting.
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Filtering of satellite-to-satellite observations

Acta Astronautica, 1979
Abstract This study addresses criticism of the low-low satellite-to-satellite methodology to obtain the small-scale gravitational structure of a primary gravitating body. Specifically, the aliasing of satellite-to-satellite range-rate observations from errors in the initial conditions of the orbits is studied numerically.
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Photographing a satellite form a satellite.

Journal of Spacecraft and Rockets, 1966
The problem of photographing an orbital target from another satellite is examined from the viewpoint of the primary target-tracking-sensor which, in this case, is a radar. A brief examination of the orbital dynamics of a near miss encounter is presented, followed by consideration of radar angle noise and the resultant influence on field of view ...
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Ground-to-satellite quantum teleportation

Nature, 2017
An arbitrary unknown quantum state cannot be measured precisely or replicated perfectly. However, quantum teleportation enables unknown quantum states to be transferred reliably from one object to another over long distances, without physical travelling ...
Ji-Gang Ren, Ping Xu, Hai-Lin Yong, Liang Zhang, Shengkai Liao, Juan Yin, Weiyue Liu, Wenqi Cai, Meng Yang, Li Li, Kui-Xing Yang, Xuan Han, Yongsheng Yao, Ji Li, Haifeng Wu, Song Wan, Lei Liu, Ding-Quan Liu, Yaowu Kuang, Zhi He, Peng Shang, Cheng Guo, Ruifeng Zheng, Kai Tian, Zhen-Cai Zhu, Nai-Le Liu, Chaoyang Lu, R. Shu, Yu-Ao Chen, Cheng-Zhi Peng, Jian-Yu Wang, Jian-Wei Pan   +31 more
semanticscholar   +1 more source

The Planck satellite

Advances in Space Research, 2002
Planck is the third Medium Size mission of the ESA Horizon 2000 Science Program. It is devoted to Cosmology and Astrophysics and will be launched in March 2007 together with Herschel Space Observatory. Planck is designed to image the anisotropies of the Cosmic Microwave Background Radiation (CMBR) over the whole sky, with unprecedented sensitivity and ...
Nazzareno Mandolesi, F. Villa, Luca Valenziano   +2 more
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Control of satellite cell function in muscle regeneration and its disruption in ageing

Nature reviews. Molecular cell biology, 2021
Pedro Sousa‐Victor, Laura Garcia-Prat, P. Muñoz-Cánoves   +2 more
semanticscholar   +1 more source

Satellite or Moon

2011
The term satellite refers to a natural object that orbits another (larger) body or to an artificial object placed into orbit by human action. Thus, ▶ planets that orbit a star may also be considered natural satellites. However, the basic definition of a natural satellite is a celestial body that orbits a planet or a small body and is classically also ...
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Global Sea Floor Topography from Satellite Altimetry and Ship Depth Soundings

, 1997
Walter H. F. Smith, D. Sandwell
semanticscholar   +1 more source

Status and distribution of mangrove forests of the world using earth observation satellite data

, 2011
Chandraprakash Giri, E. Ochieng, L. Tieszen, Zhiliang Zhu, Ashbindu Singh, T. Loveland, J. Masek, N. Duke   +7 more
semanticscholar   +1 more source