數字分組網 的英文怎麼說
中文拼音 [shǔzìfēnzǔwǎng]
數字分組網
英文
digtial packet 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 ...
- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 組 : Ⅰ名詞1 (由不多的人員組成的單位) group 2 (姓氏) a surname Ⅱ動詞(組織) organize; form Ⅲ量詞(...
- 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...
- 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
- 組網 : ad hoc networks
-
On the basis of realizing the fire - control real - time simulation system in the antiaircraft artillery weapon system, this paper designs and constructs the distributed weapon system numerical simulation platform based on ethernet, which uses the simulation technique, network communication technique and virtual reality technique. the platform is used for researching and realizing the antiaircraft artillery training simulator. also, it can be integrated with the actual equipment to construct semi - physical simulation system to make the theoretical validating experiment
本文以實現高炮武器訓練系統中的火控系統的實時模擬為基礎,運用模擬技術、網路通信技術、虛擬現實技術,設計並構建了一個基於以太網的分散式自行高炮武器模擬訓練系統通用數字模擬平臺,既可用於模擬訓練系統的研究和實現,還可和實際裝備集成以組成半物理的模擬系統,進行實際系統的原理性驗證實驗。Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally
本文分析了國內外水電站自動控制裝置的研究和發展狀況,尤其是國內小型水電站的自動化現狀,針對現有電力部門的需求,設計並實現了一種單元式的微機自動監控裝置,該裝置不僅實現了對水電站內各種模擬參數和數字信號的實時監測功能,還對水輪發電機組進行了調控,通過與上位機處理程序的配合,可以實現水電站的自動發電控制、機組順序啟停;在測量發電機組機端電壓和電流參數的時候,採用32點離散傅立葉演算法( dft ) ,增加了測量的準確性和可靠性;通過通訊可以實現裝置的聯網運行,做到「分散控制、集中管理」 。( 1 ) modeling of numerical analysis of frozen soil ventiduct roadbed by ann ( 2 ) developing the ann optimization design system for ventiduct roadbed in permafrost area ( 3 ) defining of the sequel learning tactic of three layer bp network ( 4 ) improvement on bp arithmetic in ann module
( 2 )開發了凍土通風管路基優化設計神經網路分析軟體系統具有完整的前後處理、溫度場分析、設計方案優化等功能,能滿足工程應用的基本需要。還能夠作為數值分析子模塊,以標準com組件形式嵌入「青藏鐵路數字路基」 gis系統。Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中,採用高速的dsp處理器,實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法,實現了大電流信號的驅動輸出;採用485總線技術,組建了裝置主機與多探測器之間的主從式通訊網路,實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路,採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術,實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元,設計了人機信息交互的介面;採用了模塊化的軟體設計方法,開發了裝置主機及探測器的軟體程序。Sgsn 900 1800mhz tdma digital cellular mobile communication network test method of gprs general packet radio service base station system and serving gprs support node interface
900 1800mhz tdma數字蜂窩移動通信網通用分組無線業務gprs基站子系統與服務gprs支持節點The mathematic model of antenna is used in digital tv system network layout and simulation. the disquisition educes the mathematic model of omnidirectional multilayer tv antenna
摘要這里利用電磁場理論和計算機輔助分析的方法導出電視工程常用的全向多層振元電視系列天線的數學模型,並應用於地面數字電視的單頻網組網實踐。The article illuminates mainly two segments color - separation model based on three dimensions, gives a model conception on a knowledge base of unification technology and analyse and design digital prepress system from the whole on the problem of systemic requirement analysis. second, the article brings forward new data compress method based on memory stream and sets up new data structure to realize undo and redo methods based on analyzing all kinds of datas referred to on systemic based construction. because printing and dyeing cad system deals with many arithmetics on graphics ans image and production technics, the article illuminates vector conception, expatiates gray graphic vectorization and brings forward to graphic component ' s conception to enhangce the systemic stability and manipulating speed and improve graphic transmission
在印染cad系統的需求分析問題中,結合目前印染行業的發展和實際cad系統的整體構架,著重闡述了基於三維空間的二段法分色模型,提出了一體化工藝知識庫這個模型的概念,對數字印前系統做了整體的分析、設計在系統的底層架構問題上,著重分析了cad系統涉及到的各類數據,提出一種新型的基於內存流的數據壓縮方法,同時設計了自己的數據結構,用以實現系統的undo 、 redo操作,由於整個系統涉及眾多的圖形圖像演算法和實際工藝,為了提高系統的穩定性和操作速度,以及增強圖像的網路傳輸功能,在部分演算法中採用了矢量的概念,著重講解了灰度圖像矢量化,並且提出了圖像組件這一嶄新的概念。W is a digiul trunkin mobile cominunhaon system based on mma forhnology it offers group call diw w m wion ( dmo ), duplex phone tall, padri data sehece, short data service and so on. tetw supports air interface and end - bend encrypon. tem is not only a fit private system for dispateh cominedcation of the polieq fire servce " w ha wtport, city tiwhc eto, but also for ule project reqthements of the public tw communication system
Tetra是一種基於時分復用( tdma )技術的數字集群移動通信系統,它可以提供組呼調度、脫網直通( dmo ) 、企雙工電話、分組數據服務、數據簡訊息服務等業務,支持空中介面加密和端到端加密功能,既適合公安、消防、機場、鐵路、城市交通管理等專業部門調度指揮專用,也可滿足社會共用集群網的設計要求。Radio frequency cables. part 3 - 2 : coaxial cables for digital communication in horizontal floor wiring. detail specification for coaxial cables with solid dielectric for local area network of 185 m reach and up to 10 mb s
射頻電纜.第3 - 2部分:水平地板配線數字通信同軸電纜. 185 m等於和最高可達10兆位元組秒局域網固體電介質同軸電纜詳細規范Radio frequency cables. part 3 - 3 : coaxial cables for digital communication in horizontal floor wiring. detail specification for coaxial cables with foamed dielectric for local area network of 185 m reach and up to 10 mb s
射頻電纜.第3 - 3部分:水平地板配線數字通信同軸電纜. 185 m等於和最高可達10兆位元組秒局域網泡沫電介質同軸電纜詳細規范900 1800mhz tdma digital cellular mobile communication network technical specification for gprs general packet rervice tunnelling protocol
900 1800mhz tdma數字蜂窩移動通信網通用分組無線業務gprs隧道協議技術規范According to the mil - std - 188 - 220b protocol of american army, data packets can be relayed and forwarded automatically by nodes in network. the network can detect the change of topology in internal system and assure the information to be sent to the destination node in connective network. furthermore, it comprises of the radio data transmitting network for some equipments such as tactical data terminal and computer so on
本質上,它屬于無中心的自組織分組無線網,按照美軍戰術網際網路「數字消息傳輸設備子系統互操作標準」 ( mil - std - 188 - 220b協議) ,通過節點對數據分組的自動中繼轉發,使網路能夠自動探測到系統內部拓撲結構發生的變化,保證信息能達到網路中所有連通的節點,為戰術數據終端和計算機等設備提供無線數據傳輸網路。Along with the coming of computer age, digitizing, broad banding and intelligentization became the trends of future communication progress. users put more expectations to communication service. access network connecting local exchange with user is an important part of telecom network
隨著通信與計算機整合時代的到來,數字化、寬帶化和智能化已成為未來通信發展的方向,人類社會對電信業務從質量到業務種類都提出越來越高的要求,而接入網作為電信網的重要組成部分,連接本地交換機與用戶,是整個電信網的毛細血管和瓶頸,實現數字化、寬帶化和業務綜合化的關鍵。The paper points out : e - marketing, a significant part of the enterprise marketing, realizes the targets of marketing by the internet, the computer correspondence technique and the figure medium
本文認為:網路營銷是基於網際網路、電腦通信技術和數字互動式媒體來實現營銷目標的一種營銷方式,是企業營銷活動的重要組成部分。In the first part of this paper, different kinds of usual network architecture of parallel - processing multi - processors are studied. based on adsp - 21160 serial digital signal processors from ad company, close - coupled flexible hardware network architecture is selected as the network architecture of the system, because of which the hardware logical architecture of the system can be recomposed on line according to the acquirement of different algorithms
本文第一部分研究了各種常見的并行處理網路結構,基於ad公司的adsp - 21160系列數字信號處理晶元,選擇緊耦合的柔性硬體結構作為該系統的并行處理結構,使得系統的硬體邏輯結構可以根據演算法的要求在線重組。Multi - pair cables used in high bit rate digital access telecommunication networks - part 1 : outdoor cables
用於高位率數字存取電信網路的多組電纜.第1部分:戶外電纜Multi - pair cables used in high bit rate digital access telecommunication networks - part 1 : outdoor cables ; german version en 50407 - 1 : 2004
高比特率數字存取電信網路用多組電纜.第1部分:室外電The network ( air ) interface between a mobile end system ( m - es ) and the cellular digital packet data ( cdpd ) - based wireless packet data service provider network
移動終端系統( m - es )和基於蜂窩數字分組數據( cdpd )之間的網路(空中)介面,基於無線分組數據業務提供商網路。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。Reasonable digital models and organization methods are the basic premise to digital power transmission network. this thesis discusses the classification of relevant data and the corresponding disposition methods. it provides multi - scale and multi - level digital models, and realizes the management of digital elevation model, satellite imaging, aerial photos, surface features
合理的數據模型及組織方法是構建「數字輸電網路」的基本前提,本文討論了相關數據的分類及對應的處理方法,提出了多比例尺多層次的數據組織模型,較好地解決了數字高程模型、衛星照片或航拍照片、地表特徵物等海量數據的管理。分享友人