Dynamic Spread Spectrum Time Division Multiple Access (SS/TDMA)

摘要

A demand assignment procedure, the conceptual design of the onboard processor, and the evaluation of hardware complexity and system performance were studied. A demand Assignment Spread Spectrum Time Division Multiple Access system (DA/SS/TDMA) as a back-up for terrestrial network, and a DA/SS/TDMA system suitable for overload traffic were also studied. Both systems are functionally described. Assignment procedures and frame organizations are detailed as well as the conceptual designs. Hardware complexity and reliability problems are analyzed. In a practical example it is shown how some channel saving in a redundant terrestrial network can be obtained if a satellite stand by DA system is provided.