virtual carrier 中文意思是什麼

virtual carrier 解釋
虛載頻
  • virtual : adj. 1. 實際上的，實質上的，事實上的。2. 【物理學】虛像的。3. 【物理學】有效的；【計算機】（網上）虛擬的。4. 〈古語〉具有可產生某種效果之內在力的。
  • carrier : n 1 運送人，搬夫；負荷者；使役，〈美國〉信差，郵遞員；送報人；〈英國〉運輸行，運輸業者。2 傳書鴿...
  1. The major researches in this thesis include : applying the digital signal processing technology and theory of signal detection & estimation to estimate carrier frequency of the sensing signal that reflects the measurand ; implementing the algorithm in labview, a virtual instrument development platform

    本文的主要研究內容是：運用數字信號處理技術和信號檢測、估計的基本原理從無源、無線saw諧振器型傳感器的傳感輸出信號中提取出反映被測量的信號主頻，並在虛擬儀器軟體開發平臺labview上實現了測量演算法。
  2. Then one remote supervision system based on virtual instrument technology is studied and realized. the system can measure parameters such as signal level, carrier frequency and snr of remote channel, and can estimate the state of remote channel based on this parameters, and can display the time - domain and frequency - domain wave real time of remote channel, too

    針對目前遠動監控方案的不足，研究並實現了基於虛擬儀器技術的電力遠動通道監控系統，該系統可以對遠動收發信電平、載波頻率和信噪比三個通道參數進行測量，具有實時時域波形和功率譜波形顯示功能，並能根據通道參數對通道狀態進行綜合判斷。
  3. The performance test virtual system of power line carrier based on lonworks locale control technology. the syetem is structure of modularity, it can be used to test all kinds of parameters of network performance according to your different requirements. in the lonmaker operation system and distributed database management system, the software of the system adopts object oriented programme. it can be run in windows 2000 system credibly

    電力線載波通信網路性能虛擬測試儀基於lonworks現場總線控制技術，它採用了模塊化結構，可根據不同的測試需求，構成不同的測試系統。本虛擬測試儀的上位機軟體是在lonmaker操作系統和分散式數據庫管理系統microsoftsqlserver下採用的面向對象的編程方法開發完成的，可以在windows2000操作系統下可靠運行。
  4. And for the network carrier, it can build up the virtual proprietary network vpn for its customers, carry out that management of personal renting the resources, and improve the quantity of the company ' s service. in addition, by modularized design technique, it is very easy to update and maintain the system. the service layer network management system is a continuous developing process

    業務層網管系統，它是一項持續發展的工程，隨著數據業務的發展和網路設備的發展，光網路所承載業務的不斷增多，該系統的設計思路還將不斷變化提高，功能將越來越強，以滿足發展的需要。
  5. Clients of vlc include purchaser, seller, carrier and so on, and they can purchase, sale, transport and store commodity. according to its function, vlc is divided into purchasing platform, virtual warehousing, sale platform and public information management, virtual transportation, customer management, which are mostly described as 8 use cases with unified modeling language

    虛擬物流企業的用戶包括采購人員、銷售人員、承運商和倉儲商，可以執行銷售、采購、運輸和倉儲等業務，據此，將虛擬物流企業劃分為采購平臺、虛擬倉庫、虛擬運力、銷售下臺、客戶管理平臺、公共信息管理等六個部分，採用統一建模語言描述了8個主要的用況，覆蓋了大部分的功能需求。
  6. 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，以驗證本電力線載波通信性能虛擬測試儀設計的正確性。最後對比電力線載波通信網路性能虛擬測試儀和plca - 22測試出的結果，分析電力線載波通信網路性能虛擬測試儀的優點和不足，提出了改進的方法。
  7. 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網路性能的因素，從而得到提高網路性能的方法，因此性能測試是網路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協議分析儀對網路的性能進行測試。但是它們都非常的昂貴，不能普及，本文針對此，設計了電力線載波通信網路的網路性能虛擬測試儀。
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