• Aeroflight Communications and RF Navaids

      Lilly, Douglas S.; Lyndon B. Johnson Space Center (International Foundation for Telemetering, 1974-10)
      The Space Shuttle Program concept of a low cost, reliable and reusable orbital vehicle has proven to be a driving function in systems design and integration. Extensive use of existing designs to satisfy these requirements has been effectively employed in the aeroflight systems. Appropriate planning and a careful appraisal of maturity, cost, performance, vehicle burdens, and operational flexibility were completed prior to a system choice. The aerial navigation and landing systems selected for the orbital vehicle are described and their interfaces with the control and navigation system discussed.
    • Space Shuttle Communications and Tracking System

      Batson, Bartus H.; Johnson, John H.; Lyndon B. Johnson Space Center (International Foundation for Telemetering, 1974-10)
      This paper provides an overview of communications and tracking for the Space Shuttle Program. The Shuttle Program itself is briefly described, and communications and tracking requirements and capabilities are discussed for the various phases (ascent, on-orbit, and reentry/ landing) of a Shuttle mission.
    • Space Shuttle Communications-Wideband Direct Link Signal and System Design

      Batson, Bartus H.; Huth, Gaylord K.; Lyndon B. Johnson Space Center; Axiomatix (International Foundation for Telemetering, 1974-10)
      This paper describes the design of a wideband S-band communications link from the Space Shuttle Orbiter to a ground-based terminal. This link will be used for transmission of television, digital data (various rates), or analog data, and is of interest because of the presence of bandwidth, power, and hardware constraints. The procedure followed to arrive at an overall signal and system design is outlined, and system performance margins are presented for various operational configurations. Finally, the growth potential of this link for digital data transmission is discussed.