convolution property of the Fourier transform


The cited web page does not mention the word "linear convolution", but if you just want to do without any fourier transforms, you could multiply and sum up in a loop as in the attached demo. It gives the same result as the convolution stock VI (in ~ 10-15). Well, there are other ways to do it, of course.

(There are a number of things wrong with your VI, so I'm not sure what you want at the end. For example, you are graphics of complex tables in a simple graph, then you lose the imaginary part. You also have a small wait in the loop, otherwise the VI consumes all CPU, the same recalculating over and over again. Ideally the loop should turn when an entry changes).

Tags: NI Software

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    *****************

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