Items for "scale fluctuation"

Averaging Signals with Random Time Shift and Time Scale Fluctuations

OBJECTIVES: Our main objective was to propose an alternative to the technique of signal averaging (SA) to avoid shape distortions due to jittering and scale fluctuations, leading to a mean shape signal rather than to an average one. METHODS: In case of both time shift and time scale fluctuations of the individual signals, the first point was to show what model makes it possible to interpret their expected action as a linear shift invariant filter followed by a scale invariant one...

Keywords: Signal averaging, shape averaging, jitter, scale fluctuation