Computes the Total Harmonic Distortion (THD) of a signal
function [ THD, ph, amp ] = compute_THD( t,x, freq )
Written by Dr. Yoash Levron
February 2013.
Computes the Total-Harmonic-Distortion (THD)
of a signal x(t). The amplitude and phase of the basic harmonic are also computed. These values are typically useful in power systems, audio signal processing, and other related fields.
The function computes the basic harmonic
of the signal, in the form:
x(t) = amp*cos(w*t - ph) + (higher Harmonics)
where : w = 2*pi*freq
so 'amp' and 'ph' are the phase and amplitude
of the basic harmonic.
DC offset does not affect THD.
inputs:
t - [sec] time vector. (should be periodical with basic harmonic 'freq')
x - signal vector.
freq - [Hz] frequency of the basic harmonic.
outputs:
THD - total harmonic distortion (the scale is 1 = 100%).
ph - [rad] phase of the basic harmonic.
amp - Amplitude of the basic harmonic.
Cita come
yoash levron (2024). Computes the Total Harmonic Distortion (THD) of a signal (https://www.mathworks.com/matlabcentral/fileexchange/40455-computes-the-total-harmonic-distortion-thd-of-a-signal), MATLAB Central File Exchange. Recuperato .
Compatibilità della release di MATLAB
Compatibilità della piattaforma
Windows macOS LinuxCategorie
Tag
Community
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!Scopri Live Editor
Crea script con codice, output e testo formattato in un unico documento eseguibile.
Versione | Pubblicato | Note della release | |
---|---|---|---|
1.0.0.0 |