Non‐regenerative satellite switched FDMA (SS/FDMA) payload technologies
- 1 April 1987
- journal article
- Published by Wiley in International Journal of Satellite Communications
- Vol. 5 (2) , 171-182
- https://doi.org/10.1002/sat.4600050215
Abstract
Satellite switched frequency division multiple access (SS/FDMA) satellite systems are new adaptations of the basic FDMA architecture for multiple beam spacecraft. Present multibeam satellite systems feature on‐board interbeam connections operating on a transponder channel basis, e.g. 72 MHz. SS/FDMA on board connectivity is based on much narrower channels and consequently achieves a much better utilization of spectrum resources whenever connectivity requirements are of the order of fractions of a transponder bandwidth.This work presents a critical analysis of various non‐regenerative SS/FDMA satellite systems, identifies the technological requirements to be met in order to achieve the practical realization of SS/FDMA on‐board processors and, finally, proposes two novel variable bandwidth variable centre frequency (VBVCF) demultiplexers with continuous and discrete reconfigurability.Keywords
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