1–20 von 125 Ergebnissen
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    The Use of Field Programmable Gate Arrays (FPGA) in Small Satellite Communication Systems

    Varnavas, Kosta / Sims, William Herbert / Casas, Joseph | NTRS | 2015

    Proceedings of the Third International Mobile Satellite Conference (IMSC 1993)

    R. Kwan / J. Rigley / R. Cassingham | NTIS | 1993
    Schlagwörter: Common Carrier & Satellite , Mobile communication systems , Voice communication , Aircraft communication , Communication networks , Communication satellites

    Proceedings of the Second International Mobile Satellite Conference (IMSC 1990)

    R. W. Huck / W. Rafferty / D. H. M. Reekie | NTIS | 1990
    Schlagwörter: Common Carrier & Satellite , Land mobile satellite service , Mobile communication systems , Satellite communication

    Numerical arc segmentation algorithm for a radio conference - A software tool for communication satellite systems planning

    Whyte, W. A. / Heyward, A. O. / Ponchak, D. S. et al. | NTRS | 1988
    A detailed description of a Numerical Arc Segmentation Algorithm for a Radio Conference (NASARC) software package for communication ...
    Schlagwörter: Systems Analysis

    Bandwidth-Efficient Communication through 225 MHz Ka-band Relay Satellite Channel

    Downey, Joseph A. / Downey, James M. / Reinhart, Richard C. et al. | NTRS | 2016
    ) Testbed on the International Space Station provides a unique opportunity to evaluate advanced communication techniques, such as bandwidth ...

    UAS CNPC Satellite Link Performance - Sharing Spectrum with Terrestrial Systems

    R. J. Kerczewski / J. D. Wilson / W. D. Bishop | NTIS | 2016
    In order to provide for the safe integration of unmanned aircraft systems into the National Airspace System, the control and non-payload ...
    Schlagwörter: Unmanned aircraft systems , Ground-air-ground communication , Radio communication , Communication networks , Systems integration

    Trends in mobile satellite communication

    Johannsen, Klaus G. / Bowles, Mike W. / Milliken, Samuel et al. | NTRS | 1993
    community of satellite manufacturers has been searching for an economically viable and technically feasible satellite mobile communication system ...

    Conference on Satellite Systems for Mobile Communications and Surveillance, 13-15 March 1973, London

    I. G. Kinnie / A. H. Waynick | NTIS | 1973
    A fairly detailed report is presented on an international conference on the use of satellite systems for intercontinental mobile ...
    Schlagwörter: Radio relay systems , Air traffic control systems , Communication satellites(Active)

    Interference susceptibility measurements for an MSK satellite communication link

    Kerczewski, Robert J. / Fujikawa, Gene | NTRS | 1992
    . These measurements were made using a hardware based satellite communication link simulator at NASA-Lewis. The results indicate the amount of bit ...

    International Conference on Japanese Earth Observation Programs: ADEOS Workshop

    NTIS | 1990
    Schlagwörter: Satellite sounding , Satellite-borne instruments , Satellite observation , Data systems , Ocean data acquisitions systems , Satellite communication , Satellite imagery , Satellite transmission , ADEOS satellite

    A high gain antenna system for airborne satellite communication applications

    Maritan, M. / Borgford, M. | NTRS | 1990
    A high gain antenna for commercial aviation satellites communication is discussed. Electromagnetic and practical design considerations as ...

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

    Kerczewski, Robert J. | NTRS | 1990
    NASA has developed a digital satellite communications system simulator and test bed facility, known as the SITE (System Integratrion, Test ...

    SCaN Transportable Communication Platform (STCP)

    Haddad, George / Tanger, Thomas / Pleva, David et al. | NTRS | 2017
    NASA Glenn Research Center required a satellite communication trailer that served dual purposes; 24/7 Emergency Communication Services (ECS ...
    Schlagwörter: Satellite Communications , Computer Systems

    Use of low orbital satellite communications systems for humanitarian programs

    Vlasov, Vladimir N. / Gorkovoy, Vladimir | NTRS | 1991
    communication systems are limited. The creation of an inexpensive space communications system to service such areas is therefore a high priority task ...

    Global coverage Mobile Satellite Systems: System availability versus channel propagation impairments

    Sforza, M. / Buonomo, S. / Poiaresbaptista, J. P. V. | NTRS | 1993
    Mobile Satellite Systems (MSS) in Highly Elliptical (HEO) and circular Earth orbits at Medium (MEO) and Low (LEO) altitudes have been ...

    A Prognostics Framework Development for Swarm Satellite Formations

    Okolo, Wendy A. / Conn, Tracie | NTRS | 2018
    of intelligent satellite systems. Failure prediction and mitigation are particularly important in autonomous systems such as satellite swarm ...

    Beaconless Pointing for Deep-Space Optical Communication

    Swank, Aaron J. / Aretskin-Hariton, Eliot / Le, Dzu K. et al. | NTRS | 2016
    Free space optical communication is of interest to NASA as a complement to existing radio frequency communication methods. The potential ...
    Schlagwörter: free-space optical communication

    Reconfigurable, Intelligently-Adaptive, Communication System, an SDR Platform

    Roche, Rigoberto J. / Shalkhauser, Mary Jo / Hickey, Joseph P. et al. | NTRS | 2016
    support future space communication systems for advanced exploration missions. The use of validated STRS compliant applications provides tested ...

    Development and Demonstration of a Wideband RF User Terminal for Roaming between Ka-band Relay Satellite Networks

    Marie Piasecki / Joseph Downey / Nang Pham et al. | NTRS
    infrastructure in favour of commercially provided satellite communication (SATCOM) services. Many of these SATCOM services are offered in the K/Ka ...
    Schlagwörter: satellite communication