Waveform Memory for Real-Time FPGA Test of Fiber-Optic Receiver DSPs
Paper i proceeding, 2022

Verification of advanced circuit implementations poses many challenges. For complex digital signal processing (DSP) circuits, logic simulations may be prohibitively slow when non-stationary scenarios are considered. A real-time emulation technique like the Fiber-on-Chip (FoC) approach can significantly speed up DSP logic verification. However, a potential weakness with this type of emulation is that it does not use data obtained from experiments, but synthetically creates test data. We introduce a waveform memory, which can be integrated with FoC systems and similar emulators, and which allows measured waveforms to be stored and fed to DSP circuits under test. We perform real-time FPGA experiments where we evaluate a carrier-phase recovery (CPR) module that is tested using either waveform data or synthetic data. Our results for the two different data sets show that the CPR module behaves similarly, both qualitatively and quantitatively, which indicates that the synthetic phase-noise model is a valid replacement of measured data.

optical communication

DSP

real-time

FPGA

emulation

Författare

Rafael Romon Sagredo

Chalmers

Erik Börjeson

Embedded Electronics Systems and Computer Graphics

Ali Mirani

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap, Fotonik

Per Larsson-Edefors

Embedded Electronics Systems and Computer Graphics

2022 IEEE Nordic Circuits and Systems Conference, NORCAS 2022 - Proceedings


9798350345506 (ISBN)

IEEE Nordic Circuits and Systems Conference (NorCAS)
Oslo, Norway,

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Kommunikationssystem

Inbäddad systemteknik

Datorsystem

DOI

10.1109/NORCAS57515.2022.9934184

Mer information

Senast uppdaterat

2023-10-26