I use DSPsim to build and explore digital signal-processing models. It brings signal sources, coding, modulation and analysis into a block-based workbench, so I can examine a signal-processing chain and see how design choices affect the resulting signals.
DSPsim r0.14 — example signal-processing analysis.What I use it to examine
- Build and inspect transmitter and receiver models
- Review sample rates and simulation settings
- Examine spectra and IQ constellations