[sdiy] Reverse Walsh?

[Magnus Danielson]

From: Scott Gravenhorst <music.maker at gte.net>
Subject: [sdiy] Reverse Walsh?
Date: Thu, 14 Mar 2002 12:03:47

> Is there something like FFT for Walsh that given an
> input curve, the ouput is a set of Walsh function
> coefficients?

Both Walsh and Fourier transforms belong to a group of linear
transforms. They have both forward and backward conversion transforms.
So, yes... the Walsh transform exist in both directions.

I am to tired to dig out the details, but you know that I would, don't
you?

Cheers,
Magnus