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Short time coupled fractional fourier transform and the uncertainty principle

  • Ramanathan Kamalakkannan , Rajakumar Roopkumar and Ahmed Zayed EMAIL logo

Abstract

In this paper, we introduce a short-time coupled fractional Fourier transform (scfrft) using the kernel of the coupled fractional Fourier transform (cfrft). We then prove that it satisfies Parseval’s relation, derive its inversion and addition formulas, and characterize its range on 2(ℝ2). We also study its time delay and frequency shift properties and conclude the article by a derivation of an uncertainty principle for both the coupled fractional Fourier transform and short-time coupled fractional Fourier transform.

Acknowledgements

The work of Mr R. Kamalakkannan is supported by a Junior Research Fellowship from CSIR-UGC, India.

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Received: 2021-01-27
Revised: 2021-03-08
Published Online: 2021-06-23
Published in Print: 2021-06-25

© 2021 Diogenes Co., Sofia

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