onu 中文意思是什麼

onu 解釋
奧努
  1. Two groups of onus report and grant in turn, as the network load changes, olt converts the way of granting every onu

    然後根據運營商的實際需要，提出另一種基於服務等級協議（ sla ）的演算法sb - dba 。
  2. Only when olt receives the first few bits of the uplink burst of onu and achieves the bit synchronization can the onu signal be restored

    Olt必須在收到onu上行突發的前幾個比特內實現比特同步，才能恢復onu的信號。
  3. Chongqing expressway networking toll data communication network cotains 2 - ring and 8 - ray network structure based on expressway physical structure, setting up a trasmission trunk layer of sdh stm - 4 ( can be up - graded to stm - 16 ), and channel protection business entry layer consisting of sdh onu / olt stm - 1 ( can be up - graded to stm - 4 ). data exchange layer, through ip route exchange network above sdh network, forms 3 - level computer network structure of account settlement center - road section management company - toll station. to ensure obtaining original and reliable toll data from communication network, 2m circuitous chain is established between each toll station, accountsettlement center and road section management company, and also pstn dialing backup chain is set up between toll station and account settlement center. in order to maintain clock synchronization of the whole communication network, a proposal of sub - stage clock sychrononization signal network for differet network construction scale has been put forward in this design. in view of sensitivity and importance of toll data, this design particularly gives considerations of network safety and information safety for external and internel of network. therefore, communication safety, smoothness and reliability of networking toll system can be able to maintained in many ways

    重慶高速公路聯網收費數據通信網的結構是根據高速公路的物理結構構築了2環8射的網狀結構，建立了以sdhstm - 4 （可升級到stm - 16 ）的傳輸主幹層，以sdhonu / oltstm - 1 （可升級到stm - 4 ）組成的通道保護業務接入層。數據的交換層是在sdh網之上的ip路由交換網，形成了結算中心-路段管理公司-收費站之間的3級計算機網路結構。為從通信網路上保證收費數據的原始性和可靠性，每個收費站和結算中心、路段管理公司之間建立了2m迂迴鏈路，同時在收費站和結算中心之間建立了pstn的撥號備份鏈路。
  4. On the one hand, the receiver must be self - adaptive to set as fast as possible the " 0 " and " 1 " bit level judgement threshold in a dynamic way ; on the other hand, the transmitter of onu should take some measures to minimize and compensate for the burst delay. the optical burst transmission circuit is thus required to switch on and off the laser in a snappy way to ensure fast signal sending. in that sense, the laser must be designed with a superb response speed

    一方面，接收機必須具有自適應功能，能以最快的速度動態調定" 0 " 、 " 1 "比特電平判決門限；另一方面， onu的發射機應該採取-定的措施減小和補償突發時延，其光突發發送電路要求能夠非常快速地開啟和關斷激光器，迅速發送信號，所以，它需要使用響應速度很快的激光器。
  5. This suit of algorithm constitutes two parts : one is the bandwidth allocation algorithm against t - cont, which is executed in olt ; the other is the bandwidth utilization algorithm against t - cont, which is executed in onu

    該套演算法由兩大部分組成:一是olt端針對t - cont的帶寬分配演算法，其功能是依據各個t - cont的擁塞報告，結合網路整體負載狀態，完成四種類型帶寬在不同類型、不同擁塞狀態的t - cont之間的分配;一是onu端針對t - cont的填充演算法。
  6. The passivated catalyst was tested or characterized by onu autothermal apparatus, xrd, dta and bet

    對鈍化后的催化劑進行了onu自熱測試和xrd 、 dta 、 bet等表徵。
  7. The new oam protocols should have basic management regulations including link state testing, fault alert, loop back etc. in this paper, we implement oam protocols in both olt and onu by adding oam software function block

    新協議應該加入諸如鏈路狀態檢測，錯誤發生警告，環回測試等規程來實現接入管理。本文主要研究了在olt和onu上加載軟體模塊來實現oam管理。
  8. In pon, the transmission of downlink signal from olt to onu is not complex. usually, the information destined for onus are combined into a multiframe at olt via tdm before reaching the feeder fiber, and then broadcast to each onu via the passive optical demultiplexor. upon receiving the downlink multiframe signal, each onu takes out the part of information for itself only

    在無源光網路中， olt到onu的下行信號的傳輸過程較為簡單，一般在olt將需要發送到各onu的信息採用時分復用的方式組成復幀送到饋線光纖，通過無源光分路器以廣播的方式發送到每一個onu ， onu收到下行復幀信號後分別取出屬于自己的那一部分信息。
  9. The epon network includes optical line terminal ( olt ) and optical network unit ( onu ). onuses share the optical distribution network ( odn ) trunk fiber back to the central office

    Epon系統採用局端機（ olt ） -用戶端機（ olt ）兩級結構，中間由無源光分配網路完成下行光功率分配和上行光耦合。
  10. The dissertation includes technique background of gpon, protocol summary, function architectures of olt and onu, dba ( dynamic band allocation ) algorithm and so on

    本文概括描述了gpon技術的背景、標準協議的概述、系統中olt和onu的功能結構和動態帶寬分配演算法。
  11. Although ranging is adopted, certain phase shifts still exist between bit flows from onus to olts. therefore, fast synchronization must be applied to synchronize the receiving clock of olt to the bit flow being received from a certain onu

    雖然採用了測距技術，但是各onu到達olt處的比特流仍存在一定的相位漂移，所以必須採取快速同步的技術，將olt的接收時鐘同步到當前所接收的、來自某一onu的比特流。
  12. The novel olt - based polling scheme has a fixed polling cycle ( 2ms ). onu ’ s buffer receives different data packets from user, and these packets are classified and then placed into their corresponding appropriate priority queue

    新演算法採用olt端集中統籌控制並以固定周期2ms輪詢各個onu ， onu端主要控制分類緩存用戶端來的不同類別業務流。
  13. This kind of switch hub has characteristics such as dynamically allocating the whole bandwidth of one onu between all users connecting the switch hub, ability to connect ethernet

    另外我們還設計了一個可以讓多個用戶共享同一onu的交換式集線器。它允許多用戶共享同一onu並且其總帶寬在用戶間動態分配。
  14. Gongjin electronics has large production base in shenzhen with monthly output capacity of 1, 000, 000pcs. we mainly produce broadband terminal equipment such as adsl adsl2, vdsl, wireless adsl adsl2 modems, plc adaptor, pon onu ont, and home gateway. we have top class production equipment and flexible technical strength

    同維電子總部位於美麗的南國中國廣東省深圳市，下屬同維電子香港有限公司同維電子深圳有限公司深圳市共進電子有限公司上海共進電子有限公司廣州市共進電子有限公司共進北京電子有限責任公司。
  15. In the end, the pcb design and implementation of olt and onu are submit

    最後，給出了olt和onu的pcb設計與實現。
  16. Onu optical network unit

    光纖網路單體
  17. Onu : optical network unit

    光纖網路單元
  18. Since the transmission loss from each onu to the olt receiver is different, there will exist a wide dynamic range in the received uplink optical power

    每個onu到olt接收機的傳輸損耗不同，因此所接收到的上行光功率將存在較大的動態范圍。
  19. Based on the comprehension of protocols of itu - t g. 984 and the analysis of many research results, we gives a solution of the architecture design for olt and onu in gpon system

    在理解itu - tg . . 984系列協議的基礎上，以及結合目前國際國內的研究成果，提出了gpon系統中olt 、 onu的結構設計方案。
  20. Then a new fixed cycle polling dynamic bandwidth allocation algorithm is proposed to support qos and improve bandwidth utilization in epon. the proposed algorithm consists of two parts : one is scheduling between olt and onus, and the other is scheduling between priority queues in onu

    此演算法將帶寬分配過程分為兩部分，首先是onu之間的調度，即olt給每個onu分配帶寬;其次是onu內部的調度，即onu將帶寬分配給各個優先級隊列。
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