Sampling formulas for non-bandlimited quaternionic signals
SIGNAL IMAGE AND VIDEO PROCESSING(2022)
摘要
In this paper, sampling theorems for certain types of non-bandlimited quaternionic signals are proposed. We show that the non-bandlimited quaternionic signal can be reconstructed from its samples as well as the samples of its generalized Hilbert transforms associated with quaternion Fourier and linear canonical transform. Some simulations are provided to show how the sampling formulas can be used in applications.
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关键词
Quaternion Fourier transform, Quaternion linear canonical transform, Non-bandlimited quaternionic signal
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