Software

Wideband Receiver for a Spaceborne Software Radio Application

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Executive Summary

Software Defined Radio (SDR), thanks to the recent technological advancements, has become one of the valuable solutions to achieve flexibility in a regenerative communication payload on board the satellite. However, in order to take advantage of all its potentialities much work needs still to be done to overcome the related bottlenecks. This paper reports part of the feasibility study on an advanced receiver front end design capable of digitizing more than 300 MHz bandwidth. In particular, it describes the reasons behind the selected front-end architecture and provides the conclusions of a preliminary system analysis for the receiver linearity. Finally, a list of candidate baseband processing algorithms for the compensation of one of the receiver RF impairments is presented.

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