一种消除模拟全息图中孔径衍射的方法  

A method to eliminate aperture diffraction in simulated digital hologram

作　　者：张伟[1] 张延曹[1] 范琦[1] 

机构地区：[1]空军工程大学理学院,陕西西安710051

出　　处：《微计算机信息》2008年第10期287-289,共3页Control & Automation

基　　金：航空科学基金(2006ZD53042)资助课题

摘　　要：基于巴卑涅原理,改进了光波衍射的卷积法实现,以消除模拟粒子场数字全息图中由矩形孔径衍射效应引起的干涉条纹,从而可以得到更清晰更完整的再现像,提高再现像的质量。文中以单层粒子场为例,分别采用卷积法和改进方法记录其数字全息图,通过比较两种再现结果,验证了改进方法的有效性。In numerical simulation of particle analysis, an improved numerical recording method is proposed, which can eliminate the aperture diffraction caused by its rectangular border. The simulation results indicate that the improved method is more effective than the convolution method for eliminating the aperture diffraction and improving the quality of reconstructed image. The simulation results show a good agreement with theoretical analysis.

关 键 词：同轴全息术 粒子场分析 数值模拟 孔径衍射 

分 类 号：TN247[电子电信—物理电子学]