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Time-Frequency Complexity and Information

By Patrick Flandrin, Richard G. Baraniuk and Olivier MichelPatrick Flandrin, Richard G. Baraniuk and Olivier Michel


Conference PaperMany functions have been proposed for estimating signal information content and complexity on the time-frequency plane, including moment-based measures such as the time-bandwidth product and the Shannon and Renyi entropies. When applied to a time-frequency representation from Cohen's class, the Renyi entropy conforms closely to the visually based notion of complexity that we use when inspecting time-frequency images. A detailed discussion reveals many of the desirable properties of the Renyi information measure for both deterministic and random signals

Topics: time frequency, complexity, Time Frequency and Spectral Analysis, time frequency, complexity
Year: 2006
DOI identifier: 10.1109/ICASSP.1994.390031
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