This paper presents various constellation design criteria for satellite systems in non-geostationary orbits (NGSO). Key design parameters, constraints, and tradeoffs are discussed for two classes of orbits: circular and non-circular. Circular orbits, such as the low earth orbits (LEO), the medium earth orbits (MEO), and the highly inclined geosynchronous orbits (IGSO), have equal coverage period for both north and south hemispheres while non-circular orbits such as the various type of elliptical orbits provide more focused coverage period at certain specific geographic locations. Different services require various constraints including delay, power economics, coverage region, frequency sharing, total capacity, satellite and launch-vehicle numbers. Detailed discussion of the relationship between these constraints and constellations are provided. A comparison between a proposed benchmark MEO system with other proposed broadband NGSO satellite systems is presented to demonstrate the importance of constellation design to enhance frequency-sharing capability. A potential “satellite highway” accommodating families of elliptical geosynchronous satellites is also presented. This is a novel approach to regulatory NGSO constellations which will facilitate sharing valuable resources of spectrum and useful spatial areas.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Key issues in constellation design optimization for NGSO satellite systems


    Contributors:

    Conference:

    Space technology and applications international forum - 1998 ; 1998 ; Albuquerque,New Mexico (USA)


    Published in:

    AIP Conference Proceedings ; 420 , 1 ; 249-254


    Publication date :

    1998-01-15


    Size :

    6 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Key Issues on the Constellation Design Optimization for NGSO Satellite Systems

    Wang, A. W. / University of New Mexico; School of Engineering; Institute for Space and Nuclear Power Studies | British Library Conference Proceedings | 1998


    Commercial NGSO Satellite Communication Systems

    Sushko, M. S. K. / American Institute of Aeronautics and Astronautics / Centre national d'etudes spatiales (France) | British Library Conference Proceedings | 2001



    ROUTING FOR NON-GEOSTATIONARY ORBIT (NGSO) SATELLITE SYSTEMS

    SCOTT CHARLES SULLIVAN | European Patent Office | 2021

    Free access

    DIFFERENTIAL ROUTING FOR NON-GEOSTATIONARY ORBIT (NGSO) SATELLITE SYSTEMS

    SULLIVAN SCOTT CHARLES | European Patent Office | 2022

    Free access