期刊
FRACTIONAL CALCULUS AND APPLIED ANALYSIS
卷 24, 期 3, 页码 667-688出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/fca-2021-0029
关键词
Fractional Fourier transform; short-time Fourier transform; two-dimensional fractional Fourier transform; uncertainty principle
资金
- CSIR-UGC, India
In this paper, a short-time coupled fractional Fourier transform (SCFRFT) is introduced using the kernel of the coupled fractional Fourier transform (CFRFT). The authors prove its satisfaction of Parseval's relation, derive its inversion and addition formulas, and characterize its range on L-2(R-2). The study also includes analysis of its time delay and frequency shift properties, and concludes with an uncertainty principle for both the coupled fractional Fourier transform and short-time coupled fractional Fourier transform.
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 L-2(R-2). 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.
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