MATLAB: How can i make a smoothed envelope of the complex (random) signal

Question

I would like to plot a envelope over my random signal (complex). My matlab does not support the function 'envelope'. Any ideas how I can do this?

Thanks in advanced.

stijn

Answer 1

The envelope (link) function uses the absolute value of the hilbert (link) function. Use that instead.

For more information, see Envelope Extraction Using the Analytic Signal (link).