体全息存储系统读出图像的放大率的补偿算法研究  

Holographic data storage system data page alignment using magnification compensation algorism

作　　者：刘京京[1] 何树荣[1] 何庆声[1] 金国藩[1] 

机构地区：[1]清华大学精密仪器系精密测试技术与仪器国家重点实验室,北京100084

出　　处：《光学技术》2006年第3期327-329,共3页Optical Technique

基　　金："973"资助项目(G199903301)

摘　　要：在1∶1体全息存储系统的读出过程中,保证图像的不失真和降低误码率是最关键的问题。提出了一种新颖的放大率补偿算法,定量分析了放大率偏移误差对图像的影响,并通过理论推导和实验模拟证明了这一算法的可行性。In the process to output data in pixel-matched volume holographic systems, the critical factor, is to ensure that the high fidelity and low Bit-Error-Rate of the retrieved page. A novel method named magnification compensation algorism was proposed, which was a post-procesing to compensate for pixel shifts produced by magnification error, Furthermore, this method is demonstrated by quantitative analysis and numerical experiments, whose results show a high feasibility and significant improvement in the read out system,

关 键 词：体全息存储 共轭光 放大率偏移误差 补偿算法 

分 类 号：TP333.42[自动化与计算机技术—计算机系统结构] O121.5[自动化与计算机技术—计算机科学与技术]