About this document
FFT Spectrum Correction Techniques by Ignacio Daniel Tomasov Silva is a document available to read on EtoBox.
This document describes methods for correcting errors in the frequency, amplitude, and phase measurements obtained from a fast Fourier transform (FFT) of a harmonic signal. Specifically: 1. It presents a method called the "barycentre method" that uses the spectral lines within the main lobe to calculate the coordinate of the spectrum peak and obtain more accurate frequency, amplitude, and phase measurements. 2. It applies this method to rectangular and Hanning windows, deriving correction equations for t
- Author
- Ignacio Daniel Tomasov Silva
- Language
- EN