.. _book_fig_chapter10_fig_wiener_kernel:


Wiener Filter / kernel smooting Connection
------------------------------------------
Figure 10.11

The left panel shows the inverse Fourier transform of the Wiener filter Phi(f)
applied in figure 10.10. By the convolution theorem, the Wiener-filtered result
is equivalent to the convolution of the unfiltered signal with the kernel shown
above, and thus Wiener filtering and kernel smoothing are directly related.
The right panel shows the data smoothed by this kernel, which is equivalent
to the Wiener filter smoothing in figure 10.10.



.. image:: ../images/chapter10/fig_wiener_kernel_1.png
    :scale: 100
    :align: center


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