Proposal for optical implementation of the Wigner distribution function
Proposal for optical implementation of the Wigner distribution function
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DOI：
10.1364/ao.37.002142
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发表时间：
1998-04-10
期刊：
影响因子：
1.9
通讯作者：
Zalevsky, Z
中科院分区：
文献类型：
--
作者：
Shabtay, G;Mendlovic, D;Zalevsky, Z
Wigner分布函数(WDF)提供了对信号的全面洞察，因为它同时使用空间(或时间)和频率。当涉及到光信号时，由于光信号的衍射(或色散)行为，WDF的重要性显著地更高。提出了WDF和Wigner逆变换的新的光学实现方案。这两种实现都是基于结合了联合变换相关器体系结构的整体光学元件。通过傅立叶变换，得到了与WDF相关的模糊函数的类似实现。(C)1998年美国光学学会。
The Wigner distribution function (WDF) offers comprehensive insight into a signal, for it employs both space (or time) and frequency simultaneously. Whenever optical signals are involved, the importance of the WDF is significantly higher because of the diffraction (or dispersion) behavior of optical signals. Novel optical implementations of the WDF and of the inverse Wigner transform are proposed. Both implementations are based on bulk optics elements incorporating joint transform correlator architecture. A similar implementation is derived for the ambiguity function, which is related to the WDF through Fourier transformation. (C) 1998 Optical Society of America.