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      • Department of Electrical and Electronics Engineering
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      An efficient algorithm to extract components of a composite signal

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      Author
      Özdemir, A. Kemal
      Arıkan, Orhan
      Date
      2000
      Source Title
      Proceedings of the International Conference on Acoustics, Speech, and Signal Processing, IEEE 2000
      Print ISSN
      0736-7791
      Publisher
      IEEE
      Pages
      697 - 700
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      An efficient algorithm is proposed to extract components of a composite signal. The proposed approach has two stages of processing in which the time-frequency supports of the individual signal components are identified and then the individual components are estimated by performing a simple time-frequency domain incision on the identified support of the component. The use of a recently proposed time-frequency representation [1] significantly improves the performance of the proposed approach by providing very accurate description on the auto-Wigner terms of the composite signal. Then, simple fractional Fourier domain incision provides reliable estimates for each of the signal components in O(N log N) complexity for a composite signal of duration N.
      Keywords
      Algorithms
      Computational complexity
      Computer simulation
      Error detection
      Fast Fourier transforms
      Frequency domain analysis
      Probability distributions
      Time domain analysis
      Auto wigner term
      Composite signal
      Fractional Fourier transform
      Time frequency domain
      Signal filtering and prediction
      Permalink
      http://hdl.handle.net/11693/27651
      Published Version (Please cite this version)
      https://doi.org/10.1109/ICASSP.2000.859055
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      • Department of Electrical and Electronics Engineering 3524
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