21–40 von 125 Ergebnissen
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    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 ...

    Outcomes of the 2015 World Radiocommunication Conference for Aeronautical Spectrum and Applications

    R. J. Kerczewski / L. Jonasson | NTIS | 2016
    affecting civil aviation included: unmanned aircraft systems use of the Fixed Satellite Service for command and control communications; global ...
    Schlagwörter: Unmanned aircraft systems , Land mobile satellite service , International cooperation , Radio communication

    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 ...

    Satellite delivery of B-ISDN services

    Kwan, R. K. / Price, K. M. / Chitre, D. M. et al. | NTRS | 1992
    This paper will address the role of technology in the satellite delivery of B-ISDN services. Satellites excel in serving remote users and ...

    A direct broadcast satellite-audio experiment

    Vaisnys, Arvydas / Abbe, Brian / Motamedi, Masoud | NTRS | 1992
    ) via satellite. The thrust of the work to date has been on designing power and bandwidth efficient systems capable of providing reliable ...

    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 ...

    How Public Private Partnerships Enable NASA Future Space Communication Needs

    Stegeman, James / Pham, Nang / Bhasin, Kul | NTRS | 2018
    global satellite constellations which have the potential to provide communication services to NASA Missions. Commercial satellite manufacturers ...

    Satellite Telemetry and Return Link (STARLink)

    Andrew Roberts / Claude Hashem | NTRS | 1995
    The High Altitude Missions Branch of NASA's Ames Research Center has been pursuing methods and communication architectures to decrease ...

    Challenges, Lessons Learned, and Methodologies from the LCRD Optical Communication System AI&T

    Bernie Edwards / Trisha Randazzo / Nidhin Babu et al. | NTRS
    ) Space Test Program (STP) Satellite-6 (STPSat-6) space vehicle and will operate in geostationary orbit (GEO). Launching in late 2021, the ...

    20/30 GHz satellite personal communications networks

    Palmer, L. C. / Stern, A. / Sohn, P. Y. | NTRS | 1992
    station via a Ka-band geosynchronous satellite has been investigated. Tradeoffs are examined so that the combined system of hub and gateway earth ...

    Advanced satellite system architecture for VSATs with ISDN compatibility

    Jorasch, Ronald E. / Price, Kent M. | NTRS | 1988
    This paper describes a future communications satellite system architecture concept which allows the use of Very Small Aperature Terminals ...

    Optical Relay for Future NASA Geosynchronous Orbiting Satellite for High Data Rate Links to NASA User Missions

    Warner, Joseph H. D. / Bhasin, Kul / Early, Jared et al. | NTRS | 2018
    varying the number of optical communication payloads. The communication payload on the relay satellite consisted of three major sub-systems: 1 ...

    Technical and economic feasibility of integrated video service by satellite

    Price, K. M. / Kwan, R. K. / White, L. W. et al. | NTRS | 1992
    A feasibility study is presented of utilizing modern satellite technology, or more advanced technology, to create a cost-effective, user ...

    Satellite sound broadcast propagation measurements and system impairments

    Vogel, Wolfhard J. / Torrence, Geoffrey W. / Golshan, Nasser | NTRS | 1992
    An evaluation of the operational characteristics of indoor portable reception of satellite sound reception has identified the nature of UHF ...

    Optical intersatellite links - Application to commercial satellite communications

    Paul, D. / Faris, F. / Garlow, R. et al. | NTRS | 1992
    Application of optical intersatellite links for commercial satellite communications services is addressed in this paper. The feasibility of ...

    Lunar Relay Satellite Network for Space Exploration: Architecture, Technologies and Challenges

    Bhasin, Kul B. / Hackenberg, Anthony W. / Slywczak, Richard A. et al. | NTRS | 2006
    satellite system to provide end-to-end communication services for robotic and human missions in the vicinity, or on the surface of the Moon with a ...

    Low Earth Orbit satellite/terrestrial mobile service compatibility

    Sheriff, Ray E. / Gardiner, John G. | NTRS | 1993
    Currently the geostationary type of satellite is the only one used to provide commercial mobile-satellite communication services. Low earth ...

    Boeing Satellite Television Airplane Receiving System (STARS) performance

    Vertatschitsch, Edward J. / Fitzsimmons, George W. | NTRS | 1995
    and future DBS systems. The home entertainment satellites, along with STARS, provide a new mobile satellite communication application. This ...