| 空间滤波实验中光栅像频率变化的讨论 |
| |
| 引用本文： | 陈鹤鸣,胡长贵.空间滤波实验中光栅像频率变化的讨论[J].南京邮电大学学报(自然科学版),1994(2). |
| |
| 作者姓名： | 陈鹤鸣 胡长贵 |
| |
| 作者单位： | 南京邮电学院基础课部，南京邮电学院教务处 |
| |
| 摘 要： | 从空间频率滤波的博里叶分析出发，讨论了空间滤波实验中光栅像频率的变化。理论分析和实验结果都表明，在４ｆ系统的输入面上放置一堆黑白光栅，当滤去频谱面上的±１级频谱时，输出面上光栅像的频率并未发生变化。
|
| 关 键 词： | 先栅像，空间频率，空间滤波、傅里叶分析 |
Discussion About Variations in Frequency of Grating Image in Spatial Filtering Experiment |
| |
| Chen Heming.Discussion About Variations in Frequency of Grating Image in Spatial Filtering Experiment[J].Journal of Nanjing University of Posts and Telecommunications,1994(2). |
| |
| Authors: | Chen Heming |
| |
| Abstract: | Based on Fourier analysis of spatial frequency filtering, the variations in frequency of grat ing image in the spatial filtering experiment are discussed, in which the input is a grating-like object.When the special filter, which removes the first order and at the same time passes all the other order spatial frequency, is placed in the Fourier transform plane, the frequency of output grating image does not alter. This experiment results has been observed. |
| |
| Keywords: | grating image spatial frequency spatial filtering Fourier analysis |
| 本文献已被 CNKI 等数据库收录！ |
