Envelope of a Signal

Envelope of a Signal


Updated 30 Sep 2022

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This tool finds the upper and lower envelopes of a signal. It selects the data points with the maximum possible area for the upper envelope and the minimum possible area of the lower envelope. Based on this method, it only works well with concave upper envelopes and convex lower envelopes. Example file is provided.
function [xe,ye]=Envelope(x,y,type,N)
x: x vector of the signal
y: y vector of the signal
type: 'upper' for upper envelope and 'lower' for lower envelope
N: number of data points of the envelope
xe: x vector of the envelope
ye: y vector of the envelope

Cite As

Ayad Al-Rumaithi (2023). Envelope of a Signal (https://www.mathworks.com/matlabcentral/fileexchange/118420-envelope-of-a-signal), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2022b
Compatible with any release
Platform Compatibility
Windows macOS Linux
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