Speaker
Description
Open‑source rfsoc_qsfp_offload [1] unlocked real‑time, direct‑RF capture on RFSoC4x2 by streaming up to 2.4576GHz of bandwidth over 100GbE into a host GNU Radio pipeline, with sustained ~80Gb/s demonstrated using GPU‑accelerated spectrometry. Building on that foundation and its growing community uptake this work‑in‑progress talk shares the current status toward our progress toward a universal high‑bandwidth SDR for RFSoC4x2 that serves both radio‑astronomy and instrumentation use‑cases while remaining fully open and reproducible.
New capabilities:
Full transmit path: GNU Radio → 100GbE → FPGA fabric → RFDC DUC → RF‑DAC for arbitrary waveform transmission.
Coherent multi‑channel operation: phase‑aligned capture across RF‑ADC tiles for beamforming/correlation; calibration and SYSREF handling.
Runtime‑selectable rates: flexible decimation/interpolation to operate at lower sample rates when NICs, storage, or downstream tooling impose constraints-without rebuilding the bitstream.
Software control & usability: reusable PYNQ‑based control APIs for fabric/ADC/DAC; host‑side RPC for center‑frequency and DUC/DDC configuration;
[1] https://github.com/strath-sdr/rfsoc_qsfp_offload
