.. note::
    :class: sphx-glr-download-link-note

    Click :ref:`here <sphx_glr_download_auto_examples_plot_4_1_1_wv_wireframe.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_plot_4_1_1_wv_wireframe.py:


====================================
Wigner-Ville distribution of a Chirp
====================================

This example shows the wireframe plot of the Wigner-Ville distribution of a
chirp. The WV distribution can take negative values, and has almost perfect
localization in the time-frequency plane.

Figure 4.1 from the tutorial.



.. image:: /auto_examples/images/sphx_glr_plot_4_1_1_wv_wireframe_001.png
    :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none

    /home/docs/checkouts/readthedocs.org/user_builds/tftb/envs/latest/lib/python3.7/site-packages/tftb/processing/base.py:219: UserWarning: Requested projection is different from current axis projection, creating new axis with requested projection.
      ax = fig.gca(projection="3d")
    /home/docs/checkouts/readthedocs.org/user_builds/tftb/envs/latest/lib/python3.7/site-packages/tftb/processing/base.py:219: MatplotlibDeprecationWarning: Adding an axes using the same arguments as a previous axes currently reuses the earlier instance.  In a future version, a new instance will always be created and returned.  Meanwhile, this warning can be suppressed, and the future behavior ensured, by passing a unique label to each axes instance.
      ax = fig.gca(projection="3d")





|


.. code-block:: default


    from tftb.generators import fmlin
    from tftb.processing import WignerVilleDistribution

    sig = fmlin(256)[0]
    tfr = WignerVilleDistribution(sig)
    tfr.run()
    tfr.plot(threshold=0.0, kind='wireframe')


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** ( 0 minutes  0.816 seconds)


.. _sphx_glr_download_auto_examples_plot_4_1_1_wv_wireframe.py:


.. only :: html

 .. container:: sphx-glr-footer
    :class: sphx-glr-footer-example



  .. container:: sphx-glr-download

     :download:`Download Python source code: plot_4_1_1_wv_wireframe.py <plot_4_1_1_wv_wireframe.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: plot_4_1_1_wv_wireframe.ipynb <plot_4_1_1_wv_wireframe.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_