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      • Department of Electrical and Electronics Engineering
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      Optimal short-time Fourier transform for monocomponent signals

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      Author
      Güven, Hüseyin Emre
      Date
      2004
      Source Title
      Proceedings of the 12th Signal Processing and Communications Applications Conference, IEEE 2004
      Publisher
      IEEE
      Pages
      312 - 315
      Language
      Turkish
      Type
      Conference Paper
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      Abstract
      New methods of improving the short-time Fourier transform representation of signals have recently emerged. These methods use linear canonical transforms to bring the signal into a minimal time-bandwidth product form. Here we show that linear canonical transforms are not sufficient to achieve the minimum time-bandwidth product for high-order modulated mono-component signals. Therefore we propose a novel short-time Fourier transform method which requires an adaptive window, making use of an initial instantaneous frequency estimator. The new approach is able to achieve the highest possible resolution for monocomponent signals. Finally, we discuss the benefits of the proposed method.
      Keywords
      Bandwidth
      Fourier transforms
      Integration
      Mathematical transformations
      Set theory
      Theorem proving
      Frequency estimators
      Linear canonical transforms
      Monocomponent signals
      Short-time Fourier transform
      Signal processing
      Permalink
      http://hdl.handle.net/11693/27433
      Published Version (Please cite this version)
      https://www.doi.org/10.1109/SIU.2004.1338322
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      • Department of Electrical and Electronics Engineering 3524
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