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Reassignment, a technique which sharpens the time frequency information within the time-frequency plane, can be applied to the wavelet transform to produce a more succinct, highly focused, representation. In this paper this technique is applied to interrogate and represent heart rate variation recorded by means of temporary reprogramming of a volunteer's pacemakers. The work has shown that the reassignment technique is capable of extracting subtle features, and in particular, providing enhanced temporal isolation, from components that were not readily observable in the wavelet scalogram alone.

Original publication




Conference paper

Publication Date





581 - 584