Re: Signal smoothing

On Wed, Dec 30, 2020 at 10:10 AM Blaz <[email protected]> wrote:

> Sure. I will try it. In the first post I have enclosed the picture of the
> wanted result. I have an input vector x. (which can also have a shape of
> ordinary sine wave). What I need to do is create a result signal y which
> picks up local max values (peaks) and from there the value of y
> exponentialy
> decays with the T as a time constant until the input signal x value is
> smaller than y. If the input x is greater again than the exponential
> decayed
> signal, then the resulting y takes the shape of X again. However, it is
> important that the y never drops to 0 or gets lower than x and that it
> strictly follows local peaks of x. Perhaps an low pass filter would do this
> task or also some kind of averaging. I am enclosing the picture again.
>
> ex.png <https://octave.1599824.n4.nabble.com/file/t373917/ex.png>
>
>
>
> --
> Sent from:
> https://octave.1599824.n4.nabble.com/Octave-General-f1599825.html
>
>
> I now understand!!
You want to model a half wave rectified signal with a decay on the held
voltage to model the slope from the load current.
You have to do some "if" statements similar to what you did in the other
question.



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