| Description |
vii, 145 leaves : illustrations ; 29 cm. |
| Summary |
"The telecommunications system design goals and functional requirements for an advanced logistic spacecraft are presented qualitatively. Advanced equipment and techniques that meet these system requirements and goals, that are within the state-of-the-art and that are believed to be economically feasible, are enumerated and described. System emphasis is on unification to minimize RF links and antenna subsystems, and on use of functional redundancy to assure satisfactory performance of critical telecommunication functions. The interaction of the telecommunications system design and the spacecraft mechanical, environmental, electrical, and operational interfaces are described in qualitative and quantitative terms. A practical spectrum of system interface characteristics is considered along with the required variations in system design. Considerations in RF system design including ranging code design, system sensitivity models, and RF link margin analysis models are presented. A computer program to calculate RF signal margins and to assist in RF link design of a unified telecommunications system is described in the report and listed in the appendices"--Abstract, leaf ii. |
|
