Basic FAQ for FFT Analyzer
Question number FAQ-0747
What is a time window in FFT?
DFT (FFT) cuts a certain data sequence from a continuous long time-axis waveform and performs a finite Fourier transform. In this sense, the finite time series data that is FFT'd is referred to as a time window of FFT, and the length of that time is called the time window length.
Last updated: November 16, 2009