A decade of gr-specest -- Free Spectral Estimation!
summary
gr-specest is a ten-year-old out-of-tree GNU Radio module that works with GNU Radio 3.8, providing concrete, reproducible estimators rather than theory: implements Welch Burg MUSIC ESPRIT FFT-accumulation, exposes FFT size, window, overlap and covariance-dimension knobs, and yields measurable differences in SNR and resolution. It is used in CEL coursework for student projects, includes benchmarked linear algebra (native Fortran code still runs), and remains runnable on current master.
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chapters (8)
- 0:00Spectral estimation intro
- 3:06Estimation theory
- 7:19Welch’s method
- 10:50Reading spectra
- 15:48Parametric estimation
- 18:36Pseudo-spectrum uses
- 20:23AR spectral modeling
- 22:50A decade of gr-specest
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