The project has achieved the following major objectives:
1) Address the application scenarios of most up-to-date challenging satellite communications;
2) Set the specifications for the flexible onboard processors suitable to the selected scenarios;
3) Execute a comprehensive survey for the ADC and DAC space qualified devices capable to directly digitize and synthesize RF frequencies up to Ka band;
4) Address the companion devices to push to the higher RF frequency limit the receive and transmit frequency, via e.g. sample and hold devices to be associated to ADCs and the highly integration scale Gilbert cell mixers to be associated to DAC;
5) Define an analytical modelling for the non-linear behaviours of the ADC and verify it with tests;
6) Design and manufacture a triple chain demonstrator to assess the developed concepts and European data converters capable to directly handle L band with only digital electronics:
7) Execute a test campaign characterizing the absolute and relative performances of the three RF to digital and back to RF chains;
8) Develop a higher order modulation BER tester to characterize the performances in a state-of-the-art air interface scenario.
Direct handling in digital of L band signals is now being deployed in competitive products.