Resolution measure criteria for the objective assessment of the performance of quadratic time-frequency distributions

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Resolution measure criteria for the objective assessment of the performance of quadratic time-frequency distributions

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dc.contributor.author Boashash, Boualem
dc.contributor.author Sucic, Victor
dc.date.accessioned 2011-04-18T19:06:27Z
dc.date.available 2011-04-18T19:06:27Z
dc.date.issued 2003-05
dc.identifier.citation IEEE TRANSACTIONS ON SIGNAL PROCESSING, VOL. 51, NO. 5 en_US
dc.identifier.issn 1053-587X
dc.identifier.uri http://hdl.handle.net/10576/10655
dc.description This is an original paper showing two new important results; one being an objective criterion and measure for comparing Time-Frequency methods; and the second using this new criterion to improve the design of tools for time-frequency analysis. en_US
dc.description.abstract This paper presents the essential elements for developing objective methods of assessment of the performance of time-frequency signal analysis techniques. We define a measure for assessing the resolution performance of time-frequency distributions (TFDs) in separating closely spaced components in the time-frequency domain. The measure takes into account key attributes of TFDs, such as components mainlobes and sidelobes and cross-terms. The introduction of this measure allows to quantify the quality of TFDs instead of relying solely on visual inspection of their plots. The method of assessment of performance of TFDs also allows the improvement of methodologies for designing high-resolution quadratic TFDs for time-frequency analysis of multicomponent signals. Different TFDs, including the modified B distribution, are optimized using this methodology. Examples of a performance comparison of quadratic TFDs in resolving closely spaced components in the time-frequency domain, using the proposed resolution measure, are provided. en_US
dc.description.sponsorship IEEE Signal Processing Society en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Comparison criteria en_US
dc.subject concentration en_US
dc.subject design requirements en_US
dc.subject Modified B distribution en_US
dc.subject monocomponent signal en_US
dc.subject multicomponent signal en_US
dc.subject optimization procedure en_US
dc.subject performance measure en_US
dc.subject practical analysis en_US
dc.subject resolution en_US
dc.subject time-frequency distribution en_US
dc.subject Time-Frequency Resolution en_US
dc.subject Time-Frequency concentration en_US
dc.subject Wigner-Ville Distribution en_US
dc.subject Quadratic Time-Frequency Distributions en_US
dc.subject Time-Frequency analysis en_US
dc.subject Time-Frequency representations en_US
dc.subject Instantaneous Frequency en_US
dc.subject Bilinear Time-Frequency Distributions en_US
dc.subject Reduced Interference Distributions en_US
dc.subject Spectrogram en_US
dc.subject Time-Frequency uncertainty en_US
dc.subject quality en_US
dc.title Resolution measure criteria for the objective assessment of the performance of quadratic time-frequency distributions en_US
dc.type Article en_US

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