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| 数字全息存储噪声分析 |
| Analysis of noise in digital holographic storage |
| 修订日期:2003-11-30 |
| DOI: |
| 中文关键词: 数字全息存储,误码率,像元误匹配,页内串扰噪声 |
| 英文关键词:digital holographic storage,bit-error rate,pixel misregistration,interpixel cross-talk |
| 基金项目: |
| 俞世钢 李勇 王霞 |
浙江师范大学数理学院 浙江金华321004
(俞世钢,李勇) ,上饶师范学院物理系 江西上饶334001(王霞)
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| 中文摘要: |
| 数字全息存储技术因具有能实现海量存储、可并行读出和超高速传输等特点而成为当今世界上的热门研究课题。目前,IBMAlmaden研究中心已经能够实现250GB/in2的数据存储密度。然而,由于存在各种噪声,导致误码率还比较高。首先介绍数字全息存储的基本原理,然后分析了存储过程的噪声来源以及抑制各类噪声的方法。尤其针对页内串扰噪声的抑制,介绍了像元误匹配补偿后处理技术。 |
| 英文摘要: |
| Digital holographic storage is a topic of recent interest because it can offer both high density and fast parallel readout in the world. Recently, IBM Almaden Research Center has also stored at areal densitity as great as 250GB/in~2. However,various noise lead to high bit-error rate(BER). Firstly,we introduce the principle of digital holographic storage in this paper. Then,analize noise sources. And finally ,several inhibition noise methods are presented. Compensation for pixel misregistration method is introduced. |
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