Abstract
This chapter presents in three interrelated sections the key concepts and techniques needed to design and use high performance time-frequency distributions (11-Ds) in real-world practical applications.
Section 6.1 first presents, in a heuristic approach, thecore conceptsforming the field of time-frequency signal processing, incorporating recent developments, such as the design of high resolution quadratic TFDs for multicomponent signal analysis.
Section 6.2 outlinesmethods of assessmentof the performance of time-frequency techniques, in terms of the resolution performance of TFDs in separating closely spaced components in the time-frequency domain. A performance measure is defined using key attributes of TFDs, such as the components’ mainlobes and sidelobes, and cross-terms. This method of assessment of TFDs performance has led to improvements in designing high resolution quadratic TFD for time-frequency analysis of multicomponent signals
Section 6.3 presents amethodologyfor selecting the optimal TFD for a given real-life signal under application-specific constraints. The methodology, based on the performance measure, allows for emphasis of signal features in specific regions of interest in the time-frequency domain.
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Boashash, B., Sucic, V. (2003). High Performance Time-Frequency Distributions for Practical Applications. In: Debnath, L. (eds) Wavelets and Signal Processing. Applied and Numerical Harmonic Analysis. Birkhäuser, Boston, MA. https://doi.org/10.1007/978-1-4612-0025-3_6
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DOI: https://doi.org/10.1007/978-1-4612-0025-3_6
Publisher Name: Birkhäuser, Boston, MA
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