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题名	光盘数字化测试方法的研究与实现
作者	王国华
学位类别	硕士
答辩日期	2011
授予单位	中国科学院上海光学精密机械研究所
导师	阮昊
关键词	光盘，数字化测试，电参数，误码，DSV
其他题名	Research and Realization on the Digitized Measuring Method of Optical Disk
中文摘要	数字光存储技术是现代社会应用极其广泛的一种存储技术，因为光盘生产价格低廉，存储密度高，便于携带和能长久保存。光存储技术大量应用于国防、通信等国民经济的重要领域，尤其是在数字产品的发布中由于其设计原理让其有不易被复制的优势。我国是光存储大国，但不是光存储强国，由于尖端技术被国外公司掌控，所以我们需要为自己生产的每一片光碟缴纳高额的专利费用，在光存储产业流失大量利润的同时，也在一定程度上影响了国家的信息安全。因此，独立自主的光存储技术一直是国内很多科研院所和公司研究的对象，新一代红光高清的概念在这个环境下应运而生。光盘数据的测试是光盘技术中重要的一环，它用于评价和控制光盘的刻录质量，是红光高清项目的一个重要子课题。 本文主要研究了光盘的数字化测试方法，为控制和评价光盘的刻录水平提供有力的依据。文章在介绍了光盘信息存储的基本原理之后主要从三个方面展开：第一个方面是光盘的电参数，文章讨论了光盘电参数的定义，物理意义、测试方法和实现过程，并给出一个测试实例；第二个方面是光盘误码参数，文章在这一部分首先简要介绍了光盘编译码中所用到的数学概念以及在光盘应用中的实现方式，然后研究了光盘译码的常用算法，最后通过一个译码实例讨论了光盘的误码定义以及计算过程。前两个方面是对已刻录盘片的研究，作为光盘数据数字化测试不可缺少的一部分，DSV的控制和测试则是从光盘刻录前的调制质量角度进行研究，从源头上控制光盘质量。文章的这一部分在介绍了光盘的调制过程后，进一步研究了不同的DSV控制和测试方案，最后给出一个实际应用实例。文章的最后总结整个测试过程在实现上的优势和不足之处，并且展望了课题的后续提高和发展方向。
英文摘要	Digital optical storage is a kind of storage technology which is widely applied in modern society, for the cheap price, high storage density, easy to carry and long-time preservation characteristics of optical disk. Optical storage technology is used frequently in the field which play very important role in the national economy such as national defense and communication industry, especially in the distribution of digital product, for it is not easy to be pirated due to its design principle. China is a country that produces a lot of optical disks, but it is not a country which is good at optical storage technology. Because foreign companies control the core technology of optical storage, we have to pay a great number of money for using foreign patent, at the same time of losing large sum of industrial profit, the information security of this country is harmed at some extent. So optical storage technology mastered by ourselves is studied by many democratic research institutions and companies, as demanded the concept of Next-generation Versatile Disk emerges. Measuring of optical disk data is a critical part of optical storage technology, which is used to evaluate and control the recording quality of optical disk, so it is a sub-project of NVD project. This dissertation mainly focuses on the digitized testing method of optical disk data, in order to get a validate proof to control and evaluate the quality of optical disk. After the introduction of some fundamental principles in optical storage technology, the article covers three parts: The first part is about the electrical parameters of optical disk, in this part ,we will discuss the definition of electrical parameters of optical disk, its physical significance, measuring method and realization, along with a real testing sample; The second part is about err-rate parameters of optical disk, we will talk some basic mathematical conceptions briefly at first of this part, which is applied in the encoding and decoding process of optical disk data, and then the specific realization manner in optical disk. After that, we will study the common algorithm employed to decode optical disk data, and discuss the definition and calculation procedure of err-rate parameters through a practical instance. The first two parts is aimed to study the recorded disk, as an indispensible part of digitized testing method of optical disk data, the study of controlling and measuring of digital sum value is in the view of modulation quality before recording, to control the quality of recording in the headwater. In this part, we will introduce the modulation process of optical disk at first, and then compare different controlling and measuring methods of digital sum value, in the end we will present a realized example. At the end of the whole dissertation, we will summarize the advantage and disadvantage of the whole control and evaluate process, and outlook the future improvement of these methods.
语种	中文
内容类型	学位论文
源URL	[http://ir.siom.ac.cn/handle/181231/16690]
专题	上海光学精密机械研究所_学位论文
推荐引用方式 GB/T 7714	王国华. 光盘数字化测试方法的研究与实现[D]. 中国科学院上海光学精密机械研究所. 2011.

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