Free-space Fresnel diffraction for the approximation of fractional Fourier transform

被引：7
|
作者：
Kuo, CJ [1 ]
Chang, NY [1 ]
Luo, Y [1 ]
机构：
[1] Natl Chung Cheng Univ, Dept Elect Engn, SAM Lab, Chiayi 62107, Taiwan
来源：
OPTICAL AND QUANTUM ELECTRONICS | 2002年 / 34卷 / 04期
关键词：
fractional Fourier transform; Fresnel diffraction;
D O I：
10.1023/A:1015016625230
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Fractional Fourier transformation of an object can be approximated by the object's free-space Fresnel diffraction pattern under some restricted conditions and plane wave illumination according to Hua's method. A better approximation is achieved under least-squared conditions developed in this paper. Simulation results verify that our theoretical development works for any fractional order a compared with the previous approach.
引用
收藏
页码：369 / 376
页数：8
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