26–30 Sept 2022
Capital Hilton
US/Eastern timezone
All GRCon talks are now available to watch at https://www.youtube.com/GNURadioProject

gr-dvbs2rx: An overview of the project state and path forward

26 Sept 2022, 09:15
15m
Presidential Ballroom (Capital Hilton)

Presidential Ballroom

Capital Hilton

Talk Digital Signal Processing Main Track

Speaker

Igor Freire

Description

Since its creation in 2018, gr-dvbs2rx has evolved into a fully-functional standard-compliant DVB-S2/S2X receiver implementation with SIMD acceleration in various CPU-intensive processing tasks, such as LDPC decoding and PHY signal processing. It is one of the few open-source software-defined receiver implementations for DVB-S2 and certainly one of the most capable and flexible in parametric customizations and SDR compatibility. However, there are still many pending extensions and improvements for the project to support a wider variety of DVB-S2/S2X operation modes and achieve higher throughput with more CPU efficiency and better overall performance. This talk addresses the project's current state, supported operation modes, limitations, and performance expectations. Furthermore, it provides an overview of the CPU utilization by various blocks composing the receiver and discusses the path forward for their optimization and improvement. Lastly, the talk briefly shows example commands for running the receiver and highlights real-world results with real-time reception of the 1 Mbaud DVB-S2 signal broadcast worldwide by the Blockstream Satellite project in the Ku and C bands.

Talk Length 15 Minutes
Acknowledge Acknowledge In-Person

Primary author

Presentation materials