用衍射光路分析傅利叶变换的物理意义  

Analysing the Physics Significance of Fourier Tranform by Diffraction Light Path

作　　者：韩之天[1] 杨磊[1] 

机构地区：[1]北京广播学院信息工程学院,北京100024

出　　处：《北京广播学院学报（自然科学版）》2004年第3期67-74,共8页Journal of Beijing Broadcasting Institute(Science and Technology)

摘　　要：用惠更斯-菲涅耳原理,单缝夫琅和费衍射分析了傅利叶变换的物理意义。讨论了光学得出的频谱图和傅利叶变换频谱图的相同之处和不同之处,并得出它们的横,纵坐标各差一个系数的结论。并且分析了时间信号和空间信号的差别,以及频谱图的物理意义。This article analyse the physics signification of Fourier transform by Hugens principle and Fraunhofer diffraction. It also discuss the differences between the spectrum picture producde by diffraction and the spectrum picture educed by Fourier transform and the different coefficient on coordinates, the differences between the time signal and the spatial signal and the physics signification of frenquency spectrum picture.

关 键 词：变换 物理意义 单缝夫琅和费衍射 光路分析 惠更斯 系数 光学 

分 类 号：G633.7[文化科学—教育学] O175[理学—数学]