frekansn
Frekansn is a term encountered in discussions of time-varying signals and dynamic systems to denote the local or instantaneous rate of repetitive events. Unlike a fixed, global frequency, frekansn is understood to vary with time and may be defined over short analysis windows or through the derivative of phase. The term is not part of formal metrology and its precise definition can vary by context.
Relationship to frequency and instantaneous frequency. In stationary signals, frekansn coincides with the conventional frequency. For
Measurement methods. Frekansn is often estimated using the analytic signal and Hilbert transform, or through time–frequency
Applications and relevance. Frekansn appears in contexts like speech and music processing for pitch tracking, vibration
See also: frequency; instantaneous frequency; time-frequency analysis; Hilbert transform; spectrogram; wavelet transform. Note: as a non-standard