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【标准3】DVB 标准的官方归类

已有 1134 次阅读| 2013-1-30 10:03 |个人分类:DVB

DVB 技术已经远远不是Digital Video Boardcasting 那么简单了，DVB = Digital Video Broadcasting Project

DTMB,ATSC,DVB-T,DVB-T2是目前世界上主要的四种DVB标准，其中DTMB在中国

DVB 标准和蓝皮书分类：DVB 主要是在欧洲电信标准下，ETSI，

http://www.dvb.org/technology/standards/

DVB produces specifications which are subsequently standardised in one of the European statutory standardisation bodies, usually the European Telecommunications Standards Institute (ETSI). ETSI, the Centre for Electrotechnical Standards (CENELEC) and the European Broadcasting Union (EBU) have formed a joint technical committee (JTC) to handle the DVB family of standards. In this section you will find the references for all DVB standards and specifications. The standards can be downloaded directly, free of charge, from the ETSI website.

ETSI Publications：首先ETSI出版本身的分类：

TR - Technical Report:技术报告，其实不是报告，而是标准在实现手册，负责给实际的应用指导，建议居多，比较发散思维

typically a set of guidelines for the implementation of a more normative（规范的） specification or standard. A TR is approved by the ETSI Technical Committee which proposes the document.

TS - Technical Specification:标准的实现和使用指导，implementation and the usage，建议居多，比较发散思维，但是也含一部分必须的应用范例，用shall来规范

a document which can contain normative text, i.e. mandatory text such as "shall".

A TS is approved by the ETSI Technical Committee which proposes the document,

and as such might lack some of the weight associated with the following publications. A DVB TS is generally a stepping stone to a more stable document(s).

ES - ETSI Specification: 正在意义上的标准，比较固定，超越了纯技术范畴

a document approved by the entire ETSI membership, not just the Technical Committee proposing it. It is a more stable document, than either a TR or a TS.

EN - European Standard: 更高范畴并严格的标准，主要是上升到整个欧洲范畴和立法的范畴

the highest ranking ETSI publication approved by the national standards organisations of Europe. An EN is a publication which can be and often is included in European and national legislation.

DVB BlueBooks - 则是目标在变更的规范，在一个新的领域内试图去规范总结尚未成为正式标准的约定集合

From time to time, DVB publishes documents following their approval by its Steering驾驶 Board: the BlueBooks.

In practice, these are either commercial requirements documents, policy statements, or technical specifications which are in the process of being standardised.

In the latter case, DVB has decided that there is value in the rapid publication of draft specifications as BlueBooks, pending their formal standardisation.

BlueBooks are subject to modification and a published ETSI standard takes precedence over （地位优于）its corresponding BlueBook.

【笔者按】上文分析了DVB ETIS标准的分类原则和各个标准直接的依赖和重要性