cr.nimble.dsp.energy_threshold¶
- cr.nimble.dsp.energy_threshold(signal, fraction)[source]¶
Keeps only as much coefficients in signal so as to capture a fraction of signal energy
- Parameters
x (jax.numpy.ndarray) – A signal
fraction (float) – The fraction of energy to be preserved
- Returns
- A tuple comprising of:
Signal after thresholding
A binary mask of the indices to be kept
- Return type
(jax.numpy.ndarray, jax.numpy.ndarray)
Note
This function doesn’t change the length of signal and can be JIT compiled
See also
