Results 61 to 70 of about 968,206 (211)

Inflation system for balloon type satellites Patent [PDF]

open access: yes, 1966
Inflation system for balloon type ...
Chapman, R. M.   +2 more
core   +1 more source

Performance measurements for a laboratory-simulated 30/20 GHz communication satellite transponder [PDF]

open access: yes
NASA has developed a digital satellite communications system simulator and test bed facility, known as the Systems Integration, Test and Evaluation (SITE) Project. The purpose of the facility is to evaluate satellite system components, develop and verify
Fujikawa, Gene, Kerczewski, Robert J.
core   +1 more source

Advances and Prospects of Free Space Optical Communication in Space Applications [PDF]

open access: yesعلوم، فناوری و کاربردهای فضایی
This research aims to investigate the emerging technology of free-space optical communication and its applications in the space industry. By employing light beams as information carriers, this technology offers significantly higher bandwidth and enhanced
Javad Haghshenas
doaj   +1 more source

The dynamic phenomena of a tethered satellite: NASA's first Tethered Satellite Mission, TSS-1 [PDF]

open access: yes
The tethered satellite system (TSS) was envisioned as a means of extending a satellite from its base (space shuttle, space station, space platform) into a lower or higher altitude in order to more efficiently acquire data and perform science experiments.
Mowery, D. K.   +2 more
core   +1 more source

Satellite-aided land mobile communications system implementation considerations [PDF]

open access: yes
It was proposed that a satellite-based land mobile radio system could effectively extend the terrestrial cellular mobile system into rural and remote areas. The market, technical and economic feasibility for such a system is studied.
Leroy, B. E.
core   +1 more source

Deep space monitor communication satellite system Patent [PDF]

open access: yes, 1970
Elimination of tracking occultation problems occurring during continuous monitoring of interplanetary missions by using Earth orbiting communications ...
Clemens, G. W., Jr., Mascy, A. C.
core   +1 more source

Jamming of GNNS signals [PDF]

open access: yesScientific Technical Review, 2018
GNSS technology has been used for many applications. Beside military applications, GNSS technology is used for mini UAVs - drones. One of the possible approaches for achieving anti-drone capabilities is a jamming receiver of GNSS at drone.
Pokrajac Ivan   +3 more
doaj  

Science opportunities from the Topex/Poseidon mission [PDF]

open access: yes
The U.S. National Aeronautics and Space Administration (NASA) and the French Centre National d'Etudes Spatiales (CNES) propose to conduct a Topex/Poseidon Mission for studying the global ocean circulation from space.
Fu, L. L., Lefebvre, M., Stewart, R.
core   +1 more source

Photovoltaic power system for satellite Earth stations in remote areas: Project status and design description [PDF]

open access: yes
A photovoltaic power system which will be installed at a remote location in Indonesia to provide power for a satellite Earth station and a classroom for video and audio teleconferences are described.
Delombard, R.
core   +1 more source

A phased array tracking antenna for vehicles [PDF]

open access: yes
An antenna system including antenna elements and a satellite tracking method is considered a key technology in implementing land mobile satellite communications.
Mano, Kazukiko   +4 more
core   +1 more source

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