通信網損耗 的英文怎麼說

中文拼音 [tōngxìnwǎngsǔnhào]
通信網損耗 英文
net loss
  • 通 : 通量詞（用於動作）
  • 網 : 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...
  • 損 : Ⅰ動詞1 （減少） decrease; lose 2 （損害） harm; damage 3 [方言] （用尖刻的話挖苦人） speak sarcas...
  • 耗 : Ⅰ動1 （減損; 消耗） consume; cost 2 [方言] （拖延） waste time; dawdle Ⅱ名詞1 （壞的音信或消息） ...
  • 通信網 : communication network
  • 通信 : communication; communicate by letter; correspond
  • 損耗 : 1. （損失消耗） loss; wear and tear; deterioration; waste 2. [商業] wastage; spoilage
  1. In order to utilize the frquency resource adequately and increase the capacity of mobile communication system, the wireless electric wave propagation of existing mobile system always adopts the microcell structure. forecasting the path loss characteristic of electric wave accurately can provide the necessary condition for the layout and design of wireless network, at the same time it is a precondition for the research on the microcell mobile system. the methods of forecasting of wireless electric wave propagation can divide into two parts : one is pluse and respond, that is establish the empirical model based on experimental and statistical data ; the other is ray tracing method, that is establish the deterministic model based on theoretical analyse. the paper discuss the characteristic of wireless signal electric wave transmition in symmetrical atmosphere of earth, and introduce the common path loss transmition model in land mobile communication system, also point out the localization of these models based on experiential methods

    而精確預測無線電波傳播路徑損耗特性，則為合理的微蜂窩無線網路規劃、設計提供了必要條件，同時也是研究微蜂窩移動通信系統性能的前提。無線電波傳播預測的方法分為兩類：一是用沖激響應法，即根據實驗、統計所得數據建立經驗性傳播預測模型；另一種是用射線跟蹤方法，即依據理論分析來建立確定性的傳播預測模型。本文首先討論了在地球表面均勻大氣中的無線電波傳播的基本特性，介紹了陸地移動通信系統中常用的幾種電波傳播路徑損耗經驗性預測模型，並指出了這些經驗性傳播模型對于微蜂窩小區無線電波傳播特性研究的局限性。
  2. The article consists of three parts mainly : the first part has described the method of detecting the faint signal, mainly include : detection technique of faint signal, principle of the optical fibre sensor, the little lose effects when optic fibre little curved, and the research of the stress sensor of optical fibre. the second part emphasizes on the design of the intelligent photoelectricity system, mainly tells the design of the circuit to process the faint photoelectricity signal, details the software and hardware design of intelligent photoelectricity system made of single chip microcontroller, led, man - machine interface, communication interface, etc. the third part is the network communication of the detection system, details the technology of single chip microcontroller how to group the network, and the communication between single the chip microcontroller system and the modem, and how to realize the data between the field and computer central exchanged through the existing public phone network

    文章主要分為三部分：第一部分論述了微小信號的檢測方法，主要包括微小信號的檢測技術、光纖傳感器的原理、光纖微彎損耗效應及光纖應力傳感器的研製；第二部分重點講述了智能光電檢測系統的研製，主要講述了微弱光電信號調理電路的設計及由前（后）向通道、單片機、 led 、人機介面、通信介面等組成的智能光電系統的軟硬體的具體設計；第三部分為檢測系統的網路通信部分，具體闡述了單片機系統間的組網技術、單片機和modem之間的通信及通過現有的公用電話網路實現遠程監控的技術，實現現場檢測系統與橋梁測控中心的數據交換。
  3. The insert loss of the passive circuit is less than 3. 5db, return loss better than 10db. the ammic5040 is used to drive the tga1141, and the power is splited into two signals, each of these is to drive tag4517. at the output port, the power is 4w

    無源網路損耗小於3 . 5db ，回波損耗優於10db 。第一級放大器採用ammc5040以驅動tga1141 ，通過功率分配器將信號分為兩路以驅動兩路tga4517功率放大器。最後獲得了4w連續波功率輸出。
  4. The article has set up a new assignment process on production logistics for the industrial port of wisco ' s finished product wharf, mixing the modernized information technology, especially the abundant applying on computer network, guiding with information, by strengthening the plan of production logistics to improve the passing ability of fished product wharf and steel ' s outbound quality and level, to reduce the inefficiencies assignment of every process in the product logistics, bring down the wastage with effect

    文章構建了武鋼工業港成品碼頭新的生產物流作業流程，融合現代信息技術尤其是計算機網路技術，以信息流為先導，通過增強生產物流的計劃性來提高成品碼頭的通過能力和鋼材外發質量與水平，減少生產物流各個環節的無效作業，有效降低物流損耗。
  5. The research and developing of gps / gsm vehicles watch and control system based on analyzing gps positioning technology is discussed in this article. this system is a public security prevention and far distance watching control telecommunication management which has adopt the advanced system in the world including gps / gsm, gis and internet. through this system, all the movable objectives covered by gsm net can be kept being watched and controlled from far distance. the gps data of the movable objectives and different kinds of alarm data will be sent back to the service center through gsm or cable. then the center may send the information of movable objectives " gps data and help alarms that have been already classified and identified to the different departments to deal with linking the consumers through ddn, isdn, pstnand adsl. the advantages of this system is that it adopts mature gps technology and combines the movable telecommunication net - gsm provided by china telecommunicate trades throughout the nation and it can get voice information everywhere. by utilizing internet, vbandsql server computer technology, watch and control center and far distance terminals can aim at how to increase vehicles operating efficiency, decrease wear, promote service quality and build a concentrated system of watch and control, deploy and cammand, scientific management, coordinate and process, and safety in the professions relevant with transfortation of the city

    移動目標的gps數據及各類報警數據通過gsm網路及電信有線網路傳回監控服務中心。該中心可通過ddn 、 isdn 、 pstn或adsl等方式與用戶相聯，將移動目標的gps定位信息，求救信息，報警等信息進行分類確認后，實時傳送到相應的職能部門進行處理。本系統的優點在於利用了成熟的gps全球衛星定位技術，並結合了我國電信行業在全國所開通的gsm移動通訊網路，在話音上實現了全國漫遊等特點，在監控中心和遠程用戶終端利用網際網路技術、 vb數據庫管理系統、 sqlserver分散式數據庫管理系統等計算機技術，可針對城市中與交通有關的各行各業如何提高車輛使用效率，降低損耗，提高服務質量，建立集監控、調度指揮、科學管理、協調運營、安全防範為一體的指揮控制體系，發揮其不可替代的作用。
  6. The main idea of our algorithm is to avoid choosing nodes with lower residual energy as cluster - heads, thus to ensure balanced energy - usage among the nodes in the network

    演算法通過綜合考慮候選節點的剩餘能量級、通信能量損耗等參數來優化簇首的選擇，從而有效地避免了低能量節點被選為簇首的可能性，進一步保證網路內節點能量負載的均衡性。
  7. In wavelength division multiplexing ( wdm ) optical communication networks, power equalization and adjustment between channels demand variable optical attenuator ( voa ) be capable of providing low power consumption, low insertion loss, polarization independence, integration compatibility and flatness in a wide wavelength range. among the presented voas, thermo - optic type owns superior polarization dependence upon electro - optic one, and thermo - optic voa can be driven with much lower power than micro - electro - mechanic system ( mems )

    在波分復用（ wdm ）光通信網路中，多通道間的功率均衡和調整需要具有良好特性的光可變衰減器（ voa ） ，這些特性包括：低功耗、低插入損耗、偏振無關、易於集成以及大波長范圍內的通帶平坦性。
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