``fourier``: Frequency-domain filter
====================================

.. automodule:: hypercoil.functional.fourier

.. toctree::
   :maxdepth: 1

   hypercoil.functional.fourier.product_filter
   hypercoil.functional.fourier.product_filtfilt
   hypercoil.functional.fourier.unwrap
   hypercoil.functional.fourier.analytic_signal
   hypercoil.functional.fourier.hilbert_transform
   hypercoil.functional.fourier.envelope
   hypercoil.functional.fourier.instantaneous_phase
   hypercoil.functional.fourier.instantaneous_frequency
   hypercoil.functional.fourier.env_inst