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arXiv 1608.08355math.CA
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与四元数扁长球体波函数相关的新采样公式

Novel sampling formulas associated with quaternionic prolate spheroidal wave functions

Dong Cheng, Kit Ian Kou

摘要:

Whittaker-Shannon-Kotel'nikov(WSK)采样定理给出了带限信号的重构公式。本文利用四元数再生核希尔伯特空间的理论,建立了一种新的WSK采样定理。利用这一推广得到了带限四元数信号的新的采样公式。我们的结果的一个特殊情况是表明,由Slepian获得的二维广义长椭球波信号可以用来实现一个采样系列的立方带限信号。研究了四元数傅里叶变换中能量集中问题的解。

英文摘要:

The Whittaker-Shannon-Kotel'nikov (WSK) sampling theorem provides a reconstruction formula for the bandlimited signals. In this paper, a novel kind of the WSK sampling theorem is established by using the theory of quaternion reproducing kernel Hilbert spaces. This generalization is employed to obtain the novel sampling formulas for the bandlimited quaternion-valued signals. A special case of our result is to show that the 2D generalized prolate spheroidal wave signals obtained by Slepian can be used to achieve a sampling series of cube-bandlimited signals. The solutions of energy concentration problems in quaternion Fourier transform are also investigated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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