nollataajuuden
Nollataajuuden, often translated as zero frequency, refers to a theoretical frequency of zero Hertz. In practical terms, this corresponds to a constant or DC (direct current) value. In signal processing and physics, analyzing signals at zero frequency provides information about the average or offset component of a signal, independent of any oscillations or time-varying behavior.
The concept of zero frequency is fundamental in Fourier analysis. When a signal is decomposed into its
When considering phenomena like waves or oscillations, zero frequency implies a lack of change over time. A