docsis 中文意思是什麼

docsis 解釋
電纜數據業務介面規范
  1. Therefore, it is really necessary to improve the anti - jamming ability of cmts ( cable modem termination system ) based on current docsis protocol. this paper firstly investigates the topology, architecture, key devices and channel features of hfc network, then points out its inherent disadvantages of this kind of topology

    本論文首先對hfc網的拓撲結構、體系結構、關鍵設備、通道特點等方面進行了充分的研究，指出這種網路拓撲結構固有的缺點，那就是上行是多點到一點的信號匯聚。
  2. This paper introduces the progress of the cable modem technique and the international standard related to it, gives a project of cable modem firmware design based on docsis / eurodocsis 1. 1. as the project is based on the conexant superpipe single ic for cable modem that has a high integration and a programmable mac for docsis / eurodocsis 1. 1, it is easy for producer to customize his cable modem system on the conexant project and reduce the cost

    本文介紹了cablemodem技術和相關國際標準的發展，並給出了一種符合docsis / eurodocsis1 . 1標準的cablemodem固件設計方案（此設計方案主要基於conexantsuperpipe單晶元cablemodem解決方案） 。 conexantsuperpipe晶元具有高度的集成性，可有效降低成本，而且該晶元具有符合docsis1 . 0 / 1 . 1的可編程的mac層，便於生產廠商在此方案基礎上進行二次開發定製自己的cablemodem系統。
  3. Docsis data over cable service interface specifications

    有線數據傳輸業務介面規范
  4. Docsis data over cable service interface specification

    有線電視網路上的數據介面規格
  5. Docsis doc data over cable service interface specifications

    有線數據傳輸業務介面規范
  6. Dsg docsis set - top gateway specification

    Docsis機頂網關器
  7. This thesis included the studying of implementing docsis specification in view of protocol engineering

    本文從協議工程的角度研究了電纜數據機中協議的實現。
  8. The cable television laboratories drafted out the docsis standard for cable modem system, and is widely used in the production of industry

    而電纜數據機的主要標準是docsis標準，並已經得到了廣泛應用。
  9. What is important is that the ieee802. 14 specification laid down by ieee802. 14 working group and docsis made by mcns ( multimedia cable network system )

    其中最有影響的是ieee802 . 14工作組制定的ieee802 . 14標準和mcns提出的docsis規范。
  10. Hfc bases on docsis protocols to realize data transmission, which include rf interface specification, operation support interface specification and so on

    Hfc網路主要採用docsis協議族來實現數據傳輸，這些協議包括包含射頻介面標準和操作支持介面標準等。
  11. Based on analyzing the upstream channel ' s description in the docsis protocol, the author profoundly explored the upstream channel ' s bandwidth allocation algorithm in the hfc network

    在對docsis協議中上行通道描述部分的分析基礎上，對上行通道的帶寬分配演算法進行了深入的研究。
  12. The asic ( application specific integrated circuit ) is placed in core. it implements modulation / demodulation and docsis ( data - over - cable service interface specification ) protocol

    本文作者參與了重慶市的重點科研項目? cablemodem及其前端系統cmts的研製工作，主要從事的是cm的研究，可以說對cm相當熟悉。
  13. This thesis begins with hfc network theory and docsis, analyses modulation / demodulation process of data communication in hfc. then, several theories are analysed including qam ( quadrature amplitude modulation ), nyquist root square filter, fec ( forward error correction ), map ( bandwidth allocation map ). and digital signal transmission involved the other important international standard ? itu - t j. 83 annex a / b, is discussed

    本文從hfc網路理論和docsis協議入手，分析了hfc數據通信的調制解調過程，對qam調制、奈奎斯特均方根濾波器、前向糾錯（ forwarderrorcorrection ，簡稱fec ） 、 map通信等進行了闡述；還從中探討了電纜數據機需要用到的另一個國際標準ituj . 83annexa / b所設計的mpeg信號的數字傳輸。
  14. This paper gives us too ways ： one is to adopt a better modulation mechanism, s - cdma, to bate noise jamming. the other way is to implement automatic frequency agility under strong noise, based on the ranging and burst configuration mechanism of current docsis protocol, meanwhile, guaranteeing cmts ' s normal operating. this paper comprehensively analyzes the anti - jamming mechanism of docsis, then presents the specific implementation of the latter method

    如何降低噪聲對網路的危害，本論文指出了兩個方向，其中一個就是在調制體制上下工夫，採用s - cdma體制，通過改變調制方式來主動的抑制噪聲的影響；另一個方向就是基於現在協議提供的抗噪聲干擾的機制，充分挖掘測距機制和靈活的突發配置機制的抗干擾潛力，以不影響頭端設備的正常運行為前提，以它們為基礎實現能自動避開強噪聲干擾的頻率轉移。
  15. The concept of the qos appears in the docsis v1. 1. both ieee802. 14 and docsis, focus in mac protocol design on the upstream channels, i. e. sharing the upstream channels, dealing the services and resolving the contention

    無論是ieee802 . 14還是docsis兩者mac層協議的設計重點都放在上行通道上，即上行通道的分配，服務調度以及沖突解決等。
  16. In the end, author brought forward some blue point to advance cable modem design, for example, advancing docsis appendix d, the more accurate divide of software functions and so on

    最後，作者在論文中提出了一些改進方案，例如對docsis附錄d的改進建議，軟體功能代碼的精確劃分等等。
  17. This thesis describes the relationship between the physical level of dvb - c and that of docsis, and demonstrates the feasibility of using cm to transmit the digital tv signal to pc. this thesis also provides the conditions for the cm that can be used to transmit dvb - c signal

    本文通過對dvb協議和docsis1 . 1協議的深刻了解，比較了dvb c的物理層協議與歐洲docsis物理層的相關性，論證了可以通過電纜數據機接收並轉發dvb c數據的可行性。
  18. However, in spite that there ' re detailed profiles on how to supervise the cable modem systems in the docsis standards put forwarded by the mcns ( the multimedia cable network systems ), the overall management on hfc still suffers from a great deal of deficiencies due to many reasons

    由於歷史的原因，盡管多媒體電纜網路系統組織提出的docsis標準中對cablemodem系統的管理有較詳細的規定，但對hfc網路的全面管理還存在著許多不足，這仍是一個有待發展的課題。
  19. Taking the study of baseline privacy in docsis as down - lead, this paper discusses des encryption algorithms and its security, then basing this implements encyption of docsis mac data units using it

    以研究docsis協議中的基線加密標準為引線，詳細討論des演算法及其安全性，以此為基礎，研究和實現docsismac層數據單元的des加密。
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