Wigner分布函数的应用与光学实现

JIMI

论文编号:WLX067  字数:6616,页数:19摘要     Wigner分布函数可以同时描述一个空间频率的信号，且可以当作是一个信号的局部频率谱来考虑.Wigner分布函数描述一个信号是借助与和几何光学中类似射线的概念来描述的,因此才衍生出了傅立叶光学.Wigner分布函数在信号分析、光束整形、滤波器设计等领域应用很普遍并且都有其相应的优势.综述信号的Wigner分布函数光学实现方法，详细说明其原理和采用的光路结构.关键词：wigner分布函数  应用  光学实现AbstractThe Wigner distribution function describes a signal in space and (spatial) frequency simultaneously and can be considered as the local frequency spectrum of the signal.Although derived in terms of Fourier optics the description of a signal by means of its Wigner distribution function closely resembles the ray concept in geometrical optics.The Wigner distribution function is used in signal processing,face lifting for beam of light,design of filter,and so on. And they all have their own advantage.Summarize the methods about the implement of the wigner distribution function . Illustrate the principle and frame of the light road.Keywords: The Wigner distribution function ;Application;optical implementation 目录摘要 iAbstract ii第一章 引言 1第二章 Wigner分布函数 22.1 .wigner分布函数的定义 22.2 wigner分布函数的特性 32.2.1.可逆性 32.2.2.实数性 32.2.3.空间和频率限制 32.2.4.空间和平移 3第三章 Wigner分布函数在各领域中的应用 4第四章 Wigner分布函数的光学实现 54.1 一维wigner分布函数的光学实现 54.2 二维wigner分布函数的光学实现 7第五章  Wigner分布函数的发展趋势 13致  谢 14参考文献 15