1–20 von 117 Ergebnissen
|

    The Use of Field Programmable Gate Arrays (FPGA) in Small Satellite Communication Systems

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

    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 ...

    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 ...

    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 ...

    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 ...

    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 ...

    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

    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 ...

    The economics of satellite retrieval

    Price, Kent M. / Greenberg, Joel S. | NTRS | 1988
    communications-satellite business venture. A stochastic Monte-Carlo communications-satellite business model is employed which includes factors such as ...

    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

    Modeling and Simulation of Phased Array Antennas to Support Next-Generation Satellite Design

    Tchorowski, Nicole / Murawski, Robert / Manning, Robert et al. | NTRS | 2016
    electronically steerable phased array systems. As future relay satellite architectures are proposed that include optical communications links ...

    Advanced Communications Technology Satellite (ACTS)

    Olmstead, Dean A. / Schertler, Ronald J. | NTRS | 1990
    those of current satellite systems, such as on-demand assignment, frequency reuse, and the flexible targeting of spot beams directly to the very ...

    Cognitive Communications for NASA Space Systems

    Chelmins, David / Briones, Janette / Downey, Joseph et al. | NTRS | 2019
    development of autonomous communication systems. NASA has traditionally launched single spacecraft missions that are served by the Space Communication ...

    Data distribution satellite system architecture concept

    Price, Kent M. / Jorasch, Ronald E. | NTRS | 1990
    This paper describes a future communications satellite system architecture concept called the Data Distribution Satellite (DDS). The DDS is ...