jgaeddert/liquid-dsp

Health v2 · maintenance only

Adoption not part of the score

2282 stars · 512 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

liquid-dsp is a free and open-source digital signal processing library written in C, designed specifically for software-defined radios on embedded platforms. It provides flexible, scalable DSP modules including filters, oscillators, modems, synchronizers, and forward error-correction coding with minimal external dependencies.

Use cases

• implement digital modulation and demodulation for software-defined radios
• design and apply FIR filters for signal processing
• perform fast Fourier transforms on embedded hardware
• add forward error-correction coding to a wireless link
• build a software modem for data transmission over radio
• simulate communication channels with noise and interference
• process radio signals on a Raspberry Pi or other embedded board

When to choose

• you need a lightweight, dependency-free DSP library in C for SDR applications
• you are developing radio software for embedded or resource-constrained platforms
• you need modems, filters, synchronizers, or FEC in one cohesive library
• you want portable signal processing code that runs on ARM devices like the Raspberry Pi

When to avoid

• you need GPU-accelerated or massively parallel signal processing
• you require a high-level language API like Python or MATLAB as the primary interface
• you are building audio or image applications rather than radio communications
• you need extensive Windows support, which the author acknowledges is limited

Facets

library · maturity stable

math sdk embedded-systems hardware windows cross-platform embedded dsp software-defined-radio sdr c modem filters fft error-correction telecommunications signal-processing linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="jgaeddert/liquid-dsp")