摘要
用发散球面波照明物体的自由空间菲涅耳衍射 ,实现物体的傅里叶变换 ;用汇聚球面波照明物体的自由空间菲涅耳衍射 ,实现物体的逆傅里叶变换 .提供了一种无透镜傅里叶变换模式 ,对光学信息处理具有实用价值 .
It supplies a non lens model of Fourier transform that a Fourier transform of an object can be realized by its Fresnel diffraction in a free space through illuminating it with a diverged sphere light wave and that a inverse Fourier transform of an object can be realized by its fresnel diffraction in a free space through illuminating it with a converged sphere light wave. This model has practical value to optical information treatment. The results of computer simulation revealed the realiability and feasibility of the theory.
出处
《山西师范大学学报(自然科学版)》
2002年第1期28-31,共4页
Journal of Shanxi Normal University(Natural Science Edition)
基金
山西省自然科学基金资助项目 ( 2 0 0 1 1 0 0 5 )