The lunar orbiter telecommunications system.
Spacecraft and ground equipment design of lunar orbiter telecommunications system
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Spacecraft and ground equipment design of lunar orbiter telecommunications system
Functional descriptions, interfaces, performance, and physical characteristics of Voyager 1973 flight spacecraft telecommunication system
Interplanetary space effects on S band telecommunications
Time variable telecommunications performance prediction computer program for spacecraft telemetry and communications systems
Interplanetary medium influence on S band telecommunication studied by radar astronomy
Apollo Unified S-Band telecommunications system, summarizing FM and PM transmission modes for supporting manned lunar landing
Spacecraft telecommunication systems - coding methods for phase locked loops, absolute time determination by pulsar, communications elements research
Telecommunications performance of two lunar relay satellite system /LRSS/, determining operation capabilities with Apollo communications system
Global Comsat impact on developing nations and policies for improving telecommunications in developing countries
Optimization study of FM modes for Apollo unified S band telecommunications system
Design and telecommunications capabilities of Mark 1 tracking and data relay satellite
ERTS telecommunication system for space tracking and high resolution multispectral image data acquisition and commanding
Launch vehicles for space telecommunications applications, considering payload capacity for missions involving earth resources, radio and visual astronomy and meteorology
The configuration of the Mariner Mars 1971 spacecraft telecommunications system is detailed, with particular attention to modifications performed to accommodate the orbital mission. The analysis and planning for launching are also discussed.
The use of ATS 6 spacecraft in a general telecommunication link for the health/education experiment demonstrates the feasibility of the small receiver-only terminal consisting of a ten foot diameter antenna located on a three-legged mount. The terminal is capable of 0 to 70 degrees elevation, course adjustment, and a plus or minus 5 degree elevation vernier adjustment. Its tuned radio frequency receiver utilizes a cavity back dipole feed and a preamplifier. The indoor unit provides further RF gain and drives a wideband limiter-discriminator.
This memorandum explores a host of considerations meriting attention from those who are concerned with designing organizational structures for development and control of a large scale educational telecommunications system using satellites. Part of a broader investigation at Washington University into the potential uses of fixed/broadcast satellites in U.S. education, this study lays ground work for a later effort to spell out a small number of hypothetical organizational blueprints for such a system and for assessment of potential short and long term impacts. The memorandum consists of two main parts. Part A deals with subjects of system-wide concern, while Part B deals with matters related to specific system components.
Handbook presents design and analysis of tracking, telemetry, and command functions utilized in these systems with particular emphasis on deep-space telecommunications. Antenna requirements are also discussed. Handbook provides number of tables outlining various performance criteria. Block diagrams and performance charts are also presented.
The baseline Tracking and Data Relay Satellite telecommunication system is described. The configurations of the user spacecraft terminal and the ground based terminal are illustrated. The system service and performance summary is developed to show the link support, modes of operation, and link performance to the low data rate and medium data rate user spacecraft. The link budget calculation is included to show a typical computation for each space-to-space and space-to-ground link with the assumptions used in each calculation.