載波網路 的英文怎麼說

中文拼音 [zǎiwǎng]
載波網路 英文
carrier network
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • : Ⅰ名詞1 (捕魚捉鳥的器具) net 2 (像網的東西) thing which looks like a net 3 (像網一樣的組織或...
  • : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
  • 載波 : signal carrier; carrier wave; carrier: 3路載波 three channel carrier載波傳輸 carrier transmission...
  • 網路 : 1. [電學] network; electric network2. (網) meshwork; system; graph (指一維復形); mesh
  1. Technique of transmitting data via power line ( pl ) , a new technique developed in recent years , is used to automatize the free collecting system in public service and the management of uptown service 。 this article discussed the advantage , disadvantage and the current state of the power line carrier communication 。 the advantage , method and current state of using spread spectrum technique in power line communication are discussed 。 then the characteristic of low voltage power network was also compendious analyzed 。 in this paper , after introducing the principle of ssc , design of hardware and software of the system are been discussed 。 this system has been put into use , the result has proved its high stability and reliability

    本文研究旨在提供一種利用低壓電力供電、低成本、高可靠地實現公共事業收費自動化和小區物業管理智能化的技術應用。討論了電力線通信的優、缺點及現狀,擴頻技術在電力線通信應用的優點、方式和現狀,並對低壓電力線的特性進行了簡單的分析。在闡述了擴頻通信的基本原理的基礎上,本文詳細地介紹了電力遠程抄表系統的具體實現,包括硬體模塊和管理軟體本系統已投入運行,具有較高的穩定性和可靠性。
  2. The research on carrier spectrum, modulation schemes and signal codes of plc networks has received much attention, while the mac protocol of plc networks is usually adopted from general - media computer networks

    目前國際上注重研究plc頻率、調制方式、信號編碼等關鍵技術。而對于plc的mac協議,卻通常採用修改的常規計算機的mac協議。
  3. Optical digital loop carrier equipment sonet - base

    同步光纖光數位迴機設備
  4. Optical digital loop carrier equipment sonet - based

    同步光纖光數位迴機設備
  5. Moment method is used for the analysis of interference among the vehicular multiple antennae in this paper. the multiple antennae system is equivalent to a microwave network, then the admittance matrix of the network can be obtained. using the admittance matrix, we can analyze the characteristic of coupling between two antennae and the near field of the antennae by the mom

    本文採用矩量法對車多天線間的相互干擾特性進行了分析,將多天線系統等效為微,然後採用矩量法求該的導納矩陣y ,利用該導納矩陣對天線間互耦特性進行分析,同時計算天線的近場分佈。
  6. The potential applications of amr include both civil and military communication, especially non - cooperative communications and communication confrontation, such as identifying signals, supervising signals, distinguishing interference, electronic confrontation, analyzing military threat, etc. on the basis of our analysis to the existing research on feature abstraction, the related feature abstraction methods are optimized in this paper, resulting several effective methods such as the feature abstraction based on transformation domain, stepped voltage level analysis, normalized carrier - free spectral energy analysis, squared signal and fourth powered signal analysis, etc. both the decision theory based on recognition algorithms and the artificial neural network ( ann ) based on recognition algorithms is analyzed, and the former is selected as it is more appropriate for this research

    調制類型的自動識別廣泛應用於民用通信與軍用通信,尤其是對于非合作性通信、通信對抗,比如:信號確認、信號監控、干擾辨識、電子對抗、軟體無線電、電子救援、通信對抗、軍事威脅分析等。本論文在分析現有研究的基礎上,借鑒了已有的特徵提取方法,對相關調制類型特徵提取方法進行了優化,使用了一些有效的方法,如基於變換域特徵提取方法、梯層電平分析方法、剔除后的歸一化頻域能量分析方法、信號平方后的頻譜分析方法、信號四次方后的頻譜分析方法等。通過對基於決策理論和基於人工神經兩種識別演算法進行分析,本論文選擇了較適合的基於決策理論的識別演算法。
  7. Based on the six - port relative power theory that for a given load the relative power ratios of different ports are left unchanged with the input power to the six - port varied, characteristic parameters of detectors can be obtained through the least - square method

    根據六埠相對功率理論即對某一負各埠相對功率比值不隨輸入功率變化,由最小二乘法得到檢器的特徵參數,結合四標準法,確定六埠的系統常數。
  8. The increasing of single channel capacities and evolution of optical networks topology, from simple point - to - point to intelligent optical networks, call for strict demands to optical filters. in this paper, the crucial technologies of optical filters such as interleaver, optical digital filter, fused biconical taper all - wave coupler as well as polarization - pump combiner have been studied experimentally and theoretically, which include : 1. a new process, cascaded fbt ( fused biconical taper ) with precise control as well as strict interference arm length difference, is proposed for the first time to our knowledge

    單通道速率不斷提高以及拓撲由單一的點對點傳輸向可上下的環和可動態選擇由的智能型格形光演進,對光濾器的常規性能指標、時域特性和動態可調諧特性提出了更加苛刻的要求,鑒於此,本論文全面研究了全光纖熔錐型奇偶交錯濾技術、數字光濾技術、基於g - t全通濾器的奇偶交錯濾技術以及熔錐型全耦合器和偏振泵浦合器。
  9. As a separate system, the system of statistics and analysis for the reliability of low - voltage user records reliability datum of every low - voltage user by gathering terminals, collects and deals with these datum with the technique of low - voltage power line carrier by lumped instrument. last, the datum in the lumped instrument are read in the database of the master station computer by telephone network

    低壓用戶可靠性統計與分析系統作為獨立系統,以低壓臺區為單位,通過採集終端記錄每個低壓用戶的可靠性數據,再採用低壓由集中裝置對這些數據進行集中並處理,主站計算機以電話撥號的方式將集中器中的數據讀入數據庫。
  10. Yang qixun. distribution automation and its realization in china [ j ], ieee international conference on electricity distribution, shanghai, 2000

    焦邵華,劉萬順等.配電故障時的通道衰耗分析[ j ] .電力系統自動化, 2000 ( 9 )
  11. Considering the requirement of communication network, a local area computer communication system of plc based on usb interface was given after analyzing the application model of plc. then after theoretical analysis and digital simulation, the plc modem and the computer interface models were designed. the design of software about the two models was also finished

    本文首先介紹了電力線通信技術在國內外的研究概況,分析了電力線通道的傳輸特性,討論了適合於電力線通信的擴頻通信方式,然後結合通信的要求,在分析電力線通信應用模式的基礎上,提出了一種基於usb介面的室內計算機電力線通信方案,進行了理論上的分析和數字模擬,設計了電力線modem模塊和計算機介面模塊,編制了相應的軟體程序,並對軟體進行了測試分析。
  12. In a tdma network, multiple users share the common medium ( or channel ) and bandwidth but different intervals of time. in case of the burst mode, the carrier of the modulated signal needs to be synchronized in a very short time. the common approaches such as a costas - loop and so on are no longer suitable any more

    在一個時分多址( tdma )通信中,多個用戶通過不同的時間段共享一個傳輸線(或者通道)的帶寬資源,每個用戶只能在分配給自己的時間段內進行通信,這種突發方式信號的解調要求恢復要在很短的時間內完成,我們以往在連續信號解調器中採用的costas環等方法很難適應這種要求。
  13. Idlc access network technical specification - integrated digital loop carrier

    接人技術要求-綜合數字環
  14. In the dissertation, the rf characteristics of the periodically iris - loaded elliptical waveguide used in slow - wave structure is discussed. the structure has potential applications to high - power microwave devices and filtering networks at millimeter wave frequencies

    在本論文里,我們討論了周期膜片加橢圓導作為慢結構的射頻特性,這種結構有可能應用於高功率器件和毫米段的濾
  15. Then, the optimization technology of the data business and handoff between different carriers are analyzed in detail secondly, finally intensive study is made on how to optimize these problems. on the base of the basic theory of the data business optimization and the handoff between different carriers, this paper synthesizes some popular network optimization method

    本文最後從數據業務優化和異頻切換優化的基本原理出發,綜合目前流行的一些優方法,對桂林聯通多cdma的優化進行了應用與研究,結果表明在現中多載波網路中的數據業務和異頻間切換的優化是成功的。
  16. A computer network which utilizes the existing common carrier network for transmission while providing added data service features with separate equipment

    一種計算機,利用現有的公用載波網路進行傳輸,同時使用獨立的設備提供附加的數據服務功能。
  17. Then test the time delay bandwidth and probability of error - code of power line carrier conmmunication network by plca - 22 protocol analyse apparatus to testify the validity of the system. at last i compare the results tested by the performance test virtual system and plca - 22 apparatus respectively, and analysis the virtue and shortage of the performance test virtual system, then bring forward the means to improve

    然後使用plca - 22協議分析儀對此電力線載波網路的延時、帶寬、誤碼率進行測試,以驗證本電力線通信性能虛擬測試儀設計的正確性。最後對比電力線通信性能虛擬測試儀和plca - 22測試出的結果,分析電力線通信性能虛擬測試儀的優點和不足,提出了改進的方法。
  18. The performance test is to find out the factor of effecting the networks performance. performance analyse is the base and precondition of how to optimize the network performance. in the power line carrier network, it ’ s very far - ranging to test network performance by power line communication analysis apparatus plca - 22, protocol analysis apparatus lonmanager and lonscanner. but they are very expensive and can ’ t be popularized. so because of it, i design a performance test virtual system of power line carrier communication network

    性能測試的目的在於找出影響性能的因素,從而得到提高性能的方法,因此性能測試是性能優化的基礎和前提。在電力線載波網路中,最為廣泛的方法是使用電力線通信分析儀plca - 22 , lonmanager協議分析儀和lonscanner協議分析儀對的性能進行測試。但是它們都非常的昂貴,不能普及,本文針對此,設計了電力線通信性能虛擬測試儀。
  19. Because of the development of technology and the enhancement of users ’ demand, the target which is optimized expands from one single carrier network to double - carrier or rather multi - carrier network, from the basic voice business network to the data - voice network

    由於技術的發展和用戶需求的提高,我們優化的對象從單載波網路發展到多載波網路,從提供基本的語音業務發展到提供多種業務的語音與數據結合的
  20. First the dissertation analyzes and compares the actuality of the performance of the power line carrier network, then put forward the principle of the test system, configuration of the hardware and design of the software of the system. so i analyze the theory of the test system by testing the time delay, and analyze the factor which effect the time delay. then narrate how to test the bandwidth and probability of error - code briefly

    論文首先對電力線載波網路性能研究的現狀進行了分析和比較,然後提出本虛擬測試儀的實現原理,硬體的配製以及軟體的設計,接著通過詳細的延時測試說明此虛擬測試儀的運作原理,並分析影響延時的因素。還簡要地說明如何使用此虛擬測試儀對帶寬和誤碼率進行測試。
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