Tidfrekvensanalys
Tidfrekvensanalys is a method used in signal processing to study how the frequency content of a signal changes over time. Unlike traditional frequency analysis, which provides a single frequency spectrum for an entire signal, time-frequency analysis offers a more detailed view by showing which frequencies are present at specific moments in time. This is particularly useful for analyzing non-stationary signals, where the frequency composition evolves.
Several techniques fall under the umbrella of time-frequency analysis. One common approach is the Short-Time Fourier
The output of time-frequency analysis is often visualized as a spectrogram or a scalogram, which is a