Résultats de recherche
Le taux de distorsion harmonique (abrégé THD, total harmonic distortion en anglais) est un indicateur de la qualité du traitement du signal dans un appareil. Le taux de distorsion harmonique s'exprime en pourcentage. On indique le rang de l'harmonique en indice, ou on calcule le taux de distorsion harmonique total.
The total harmonic distortion ( THD or THDi) is a measurement of the harmonic distortion present in a signal and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency.
Following THD formula or THD equations are used to calculate THD (%) in this Total Harmonic Distortion calculator. After THD (%) in calculated using equation-1, following THD formula is used to convert THD (%) to THD (dB).
r = thd(x) returns the total harmonic distortion (THD) in dBc of the real-valued sinusoidal signal x. The total harmonic distortion is determined from the fundamental frequency and the first five harmonics using a modified periodogram of the same length as the input signal.
2 mai 2023 · Total harmonic distortion (THD) is a key measure of the harmonic content of signals in power supply networks and electronic assemblies, such as audio amplifiers. If you have a digital oscilloscope with FFT functionality, calculating the Total harmonic distortion isn't too difficult.
29 nov. 2023 · I have the following questions: What is the unit of the amplitude in the FFT spectrum if the input signal is in Amperes? I know the THD is
This application note discusses how to measure total harmonic distortion plus noise or THD + N of an operational amplifier, how to interpret the measurements, and the fundamental principles of THD + N.
