數字地面網路 的英文怎麼說

中文拼音 [shǔzìdemiànwǎnglù]
數字地面網路 英文
digital terrestrial network
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 字 : Ⅰ名詞1 （文字） character; word 2 （字音） pronunciation 3 （字體） form of a written or printed ...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 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...
  • 路 : 1 （道路） road; way; path 2 （路程） journey; distance 3 （途徑; 門路） way; means 4 （條理） se...
  • 數字 : 1. （表示數目的文字; 表示數目的符號） figure; digit; numeral; character; numeric character 2. （數量） quantity; amount
  • 網路 : 1. [電學] network; electric network2. （網） meshwork; system; graph （指一維復形）; mesh
  1. One kind of adaptive data acquisition system is constituted using computer and intelligent amplifier. the distinguishability of data acquisition system is elevated

    深入研究了小波神經網路理論，並將地震數據剖面看成是二維數字圖像。
  2. A scheme that to use digitalized catv signals in some inner areas while to use microwaves in some areas for where with no probability using the cable network, which is an extraordinary perfect transition measure, efficiency, economy and a shortcut, before the digital television terrestrial broadcasting standards come into practice

    廣播電視部門在地面廣播標準尚未出臺、直播衛星也未開通以前，採用有線電視的標準，利用有線電視數字電視信號，通過微波在有線網路之外進行無線補充覆蓋，高效、經濟、快捷，是一個非常理想的過渡辦法。
  3. And pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion

    論文首先描述了數字電視地面廣播的需求條件，技術難點和目前存在的問題，並重點分析了dvb - t系統結構流程，核心技術及系統通道特性和參數，該系統採用了cofdm （編碼正交頻分多路復用） ，大量導頻信號插入和保護間隔技術等核心技術，使之能抵抗高電平（ 0db ） ，長延時的靜態和動態多徑失真，有利於數字和模擬電視的混合傳輸，它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。
  4. The ideas as follow : i. we must establish a transferring institution of moral rights of copyright in order to enlarge ranges of author ' s right, and to make authors deal with it freely according to their own intention, therefore they can enjoy interests of copyright fully

    文章最後對構建數字網路時代的著作人身權制度，大膽地進行了設想： 1 、應建立著作人身權的轉讓制度。擴大作者的權利范圍，使作者育以民據自身的意願，基於合同處理著作人身權，從而更全面地享有著作權的權益。
  5. One of the most important events in the history of the development of tv technologies is the implementation of digital compression technology, which leads tv industry into a new rapidly developing stage. with satellite, cable and terrestrial transmission channels, dvb, of which the digital compression is the core technology, has such features as two - way channels, interactive functions, etc. in dvb system, the information of video, audio and text is digitalized and integrated to form a new kind of tv program. furthermore, through online digital information broadcasting, people can browse information of other programs while watching several programs just as they have done on the internet

    電視技術發展史上最重要的里程碑是數字壓縮技術的廣泛應用，它將電視事業帶入一個新的高速發展時期，以數字壓縮為核心技術的數字電視廣播通過衛星有線和地面傳輸具有多功能雙向傳輸交互性等特點，不僅將圖像聲音和文字等信息數字化，而且將有關信息相互鏈接並有機地結合在一起形成了新的節目形態，特別是其採用了數字信息在線廣播方式，觀眾在收看到多套節目的同時還可以像訪問網際網路那樣瀏覽其它節目信息。
  6. Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail

    針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。
  7. Creation of triangulation digital terrain model and its application in alignment design

    三角網數字地面模型的生成及其在路線設計中的應用
  8. Socket function mainly realizes setting up and initializing service unit socket, initializing service unit and service unit serial and so on. bind funcion primarily binds local address and port for the socket. listen function is to evaluate the max length of server ’ s listening queue. connect function and accept function set aside rate ahead, infrom user ’ s request of establishing virtual circuit to suna, cooperate with suna to establish the connection between client and server, return the result. we make use of three handshake with data protocol and virtual circuit mode, in this way, when we translate data, we can look up communication course according to virtual circuit number, at the same time, there aren ’ t source ip address and port, end ip address and port in the head of data package, the speed of translating data advances in a certain extent. send function and recv function is to send data collaborating with suna, and copy data from the receiving queue of socket to user ’ s buffer. close function cooperate

    Socket （ ）函數實現創建、初始化服務元套接字，初始化服務元及服務元序列等。 bind （ ）函數為套接字綁定本地地址和埠號。 connect （ ）和accept （ ）函數主要是根據用戶要求預留帶寬，將用戶的建立虛電路請求轉達給服務元網路體系，協作服務元網路體系採用捎帶數據的三次握手協議建立虛電路，並告訴用戶處理結果，一方面，捎帶數據的三次握手協議在一定程度上可提高數據傳輸速度;另一方面，採用虛電路方式，使得數據通信可直接根據虛電路號查找相應的通信進程，而且數據包的包頭中省去了源ip地址、埠號和目的ip地址、埠號，提高了數據傳輸速率。
  9. The paper present a new tachometer of twisting moment with good properties, this risc microcontroller has simple and reliable current with low cost, can autotreating the data, autodisplaying the numerals and autorecording these numerals by two twisting moment and rotational speed, also having interface of data net

    介紹了一種新型的扭矩轉速儀，其特點是採用了高性能的risc單片機，電路簡潔、可靠，低成本地實現了兩路扭矩及轉速參數的自動測量、數據處理、數字顯示與記錄，並具有數據聯網介面。
  10. The information system pangaea is a public data library on the internet aimed at archiving, publishing and distributing geocoded data with special emphasis on environmental, marine and geological research

    描述: 「地質與環境數據網路」 （ pangaea ）是一個網路數字圖書館，目標是存檔、出版與發布有關環境、海洋與地質研究方面的數據。
  11. Based on such situation, this research proposes a distributed heterogeneous database information searching system model based on corba middleware. this model absolutely use existing network and utilize digital book database systems which have been built or under being built. it offers user a uniform search entrance to access the heterogeneous database at different area transparent on the orb provided by visibroker

    本課題根據目前這種現狀，提出了一個基於corba中間件的分散式異構數據庫的信息檢索模型，該模型基於現有網路，利用已經建設完全或正在建設的數字圖書資料數據庫系統，在visibroker提供的orb的基礎上為外部用戶提供統一介面透明地訪問分佈在各地域的異構數據庫，從而實現分散式異構數據庫系統間的統一檢索。
  12. 1 ) realization of software packet embedded in m - es and md - is respectively to accomplish main function of mdlp, including assignment of tei ( temporary equipment identifier ), establishment of multiple frame operation, framing, flow control and error - free transmission of packets, is detailed. 2 ) a test model is established to evaluate the robustness and stability of mdlp and verify the validity of software packets. 3 ) according to the design of radio modem construction used in m - es, the modules of interface between data terminal equipment and radio modem are achieved to enable transmission of short message and continuous pseudo - random bit stream via rs232 uart

    本文首先概述了蜂窩數字分組數據網的結構和空中協議，詳細分析了移動數據鏈路協議，並在此基礎上，重點敘述了以下方面的工作： 1 ）設計並完成了分別應用於m - es和md - is端無線控制器的兩套程序實現數據鏈路層的主要功能，包括分配臨時設備號、建立鏈路、組幀和面向連接的服務保證分組正確無誤地傳輸，並進行適當的流控； 2 ）建立測試模型測試移動數據鏈路協議的可靠性和穩定性，證明了程序包的效用； 3 ）根據cdpd系統無線數據機的軟硬體總體設計方案，完成了介面模塊，實現了rs232異步串口通信，使用戶可以根據需要發送短消息或連續的偽隨機比特流； 4 ）在tms320c54x的軟體、硬體模擬平臺上，建立了cdpd試驗模型，實現了cdpd系統的mdlp基本功能。
  13. This paper analyzes the technical development of spatial data sharing model and puts forward a service - oriented geography network model, and designs an architecture of the government spatial data sharing model for the " digital guangzhou " project

    摘要分析了空間數據共享模式的技術發展，提出了以面向服務的地理網路共享模式，解決了政府空間數據共享，並以「數字廣州」工程為例構建了政府空間數據共享的框架。
  14. A theory method of gis - based dynamic visual simulation for the construction processes of underground structure group is presented, which combines cyclic operation network simulation, system simulation, network plan optimization and gis - based construction processes " three - dimension visualization. with considering simulation results " visualization and fully using powerful space data and graphics process technique of gis, it describes the construction processes with dynamic digital three - dimension pictures. it provides a useful analysis tool for grasping the construction processes comprehensively and quickly

    提出了基於gis的地下洞室群施工動態可視化模擬理論與方法，該理論方法集循環網路模擬技術、系統模擬技術、網路計劃分析與優化技術、基於gis的施工過程三維可視化技術於一體，以模擬結果的直觀可視化為出發點，充分利用gis強大的空間數據處理功能和圖形處理技術，通過動態的數字化三維圖形將地下洞室群施工過程形象地描繪出來，為全面、快速地掌握施工過程提供了有力的分析工具。
  15. In first part, the article mainly describes the network circumstance that library faces with in developing information reference. through introducing computer network, internet, information highway, digital globe, library computer network and networked library, a network that covers all over the world appears before us

    第一部分描述了圖書館開展信息咨詢面臨的網路環境，通過對計算機網路、因特網、信息高速公路、數字地球、圖書館計算機網路和網路圖書館的敘述，向人們展示了一張覆蓋天下、網路全球的天羅地網。
  16. An. v interfaces at the digital local exchange - access network supporting v5 - transmission characteristics and performance design objectives for call handling and bearer channel connection management

    數字本地電話交換的v介面.支持v5的接入網路
  17. Methods of measurement for equipment used in digital microwave radio transmission systems - measurements on terrestrial radio - relay systems - r f branching networks

    數字微波無線電傳輸系統使用設備的測量方法.地面無線電中繼系統的測量. rf分支網路
  18. Firstly, the discrete multi - tone processing in an adsl central office - side interface card is detailedly introduced. the processing mainly includes timing, framing, interleaving, forward error correction, cyclic redundancy check, constellation encoding, inverse fast fourier transform processing, prefixing, d / a converting, and amplifying. secondly, a kind of interface named utopia level 2 is used as the network interface, with which many adsl devices are linked with one atm layer

    本文比較詳細地闡述了數字用戶線接入模塊（ dslam ）開發方案中， adsl局端介面模塊的dmt編碼與調制過程，討論了其組網應用方式以及基於atm的網路側介面utopia2技術，分析了adsl與其它寬帶接入技術的相互聯系和優缺點，並介紹了方案中所採用的一些關鍵技術，包括在線插拔技術、系統同步啟動和故障自動重起技術以及高速數字信號完整性的保證技術等等。
  19. There has been established an all enveloping transmission network of broad - band information with big - capacity optic fiber, digital micro - wave, cable and broadcast tv. long distance telephone calls can reach 1, 800 cities in the country and practically all places in the world

    全市已形成大容量光纖、數字微波、有線和無線全面覆蓋的寬帶信息通訊立體傳輸網路，長途電話可直撥世界各地和國內1800多個城市。
  20. Then the useful ways are analyzed by which they can obtain technology, management and decision support in the process of operating the new model. its main content includes : ( 1 ) to achieve the finance integration based on the information standardization and reorganization of information systems on numerical campus with " all - in - one card " ; ( 2 ) to make overall budget management and control and establish a centralized system around finance within intranet systems ; ( 3 ) to get a dynamic capital control with an intensive financial center in order to improve their efficiencies and avoid possible risks ; ( 4 ) to build a performance evaluation and decision support system and help managers make better decisions by assessing and comparing their operational process

    然後從四個方面較為深入地探索了使高校財務管理迎接挑戰，實現新模式運作的技術支持、管理與決策支持的實施途徑，具體包括：實現財務業務一體化，即通過數字化校園及校園「一卡通」的建設實現校園信息的標準化和高校管理信息系統的整合；實現高校全面預算管理和控制，通過網路財務系統的建設，實現以預算管理為核心的財務集中管理；實現高校資金動態集中控制，即通過集約型資金管理結算中心的建設，達到對資金動態集中管理、提高資金使用效益、有效防範資金風險的目的；建立績效評價和決策支持系統，即通過績效測評、比較和分析，把脈高校運營和管理，支持領導決策。
分享友人
分享到 Line

分享到臉書