Metaplectomorphism

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In mathematics and signal processing, a metaplectomorphism is a transformation by way of an operator from a metaplectic group of operators.

Examples of metaplectomorphisms, in time-frequency, include:

  • translation in time;
  • translation in frequency;
  • dilation in time (which, by the way, also results in contraction in frequency);
  • chirping (introduction of a time-varying frequency-shift);
  • dispersion (introduction of a frequency-varying time-shift).
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