SDRA'23 - 03 - Laurence Barker, G8NJJ: Completion of the Saturn SDR
This paper presents completion of the Saturn SDR. We had presented a first prototype at SDRA 2022. We describe the work that has been required to develop and debug the Xilinx FPGA and the SDR server application that executes on a raspberry pi processor to achieve a complete working HF software defined radio.
To optimise the DSP within the FPGA we describe a combination of logic simulation followed by GNU Octave scripts to analyse the data collected from the simulation. We present results showing the combination that could not be achieved using Vivado or Octave alone. Vivado has provided bit-true results; Octave has enabled graphical presentation and frequency domain analysis.
We present the completed radio and show it working with an established remote PC client application (Thetis) and an established local client application (Pihpsdr). Finally we present concepts for future work that is enabled by the combination of FPGA and local ARM processor.
Camera & Edit: FurStreaming
Sebastian Kipp, DL5WN
Marc Diensberg, DO1BOL
Torben Hellige