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Calculate envelope of curve

I have a file with measured data f(t). The data are sinusoidal with changing amplitudes over time. Now I want to get the envelope of that data, i.e. floating peak-to-peak value or max. amplitude over time. How can I achieve this?

Thanks,
Ronald

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manoj kandukuri

Hi Ronald,

You can use max or min command to find the maximum or minimum Y value in the data.

Hope this helps,

Thanks,

Manoj Kandukuri

RoKet

Thanks, Manoj.

Min/max are the basic functions to calculate the envelope. While they just deliver one scalar, I have to combine them with a loop and a piecewise min/max calculation.

I hoped, I could use an existing function (or macro).

Best regards,

Ronald

manoj kandukuri

Hi Ronald,

I apologize for late reply.. I don't have an existing macro which does the same...

Thanks,

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