article · Mathematical Methods in the Applied Sciences
The free metaplectic transform (FMT), a generalized form of the linear canonical transform (LCT), has proven to be a useful analytical tool in signal processing applications. This paper aims to generalize the FMT to a quaternionic framework involving the two‐dimensional signals. We further study some properties that correspond to those of the standard ones, including linearity, uniform continuity, inversion, and Parseval's identity for this new integral transform, which we coin as the quaternionic free metaplectic transform (QFMT). Furthermore, utilizing the relationship between the general quaternionic Fourier transform and the QFMT, several uncertainty principles (UPs) for the QFMT are established, including the Heisenberg–Weyl UP, Hardy UP, logarithmic UP, Donoho–Stark UP, and entropic UP. We expect that this paper will open up avenues of promising research and applications involving this new transformation.
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DOI: 10.1002/mma.10573
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