數字傳輸線 的英文怎麼說
中文拼音 [shǔzìzhuànshūxiàn]
數字傳輸線
英文
digital transmission line- 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 ...
- 傳 : 傳名詞1 (解釋經文的著作) commentaries on classics 2 (傳記) biography 3 (敘述歷史故事的作品)...
- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 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
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As to the abuses of that analog circuits mix digital ones, special components mix general ones, and overfull append devices in domestic and overseas capsule endoscope electric systems, we introduce a full digital, high - integration and simple - configuration idea for the design of capsule endoscope electric system, then designed and made camera module, wireless transceiver module and usb data transfer module
針對目前國內外的膠囊內窺鏡電子系統裝置中,數字電路與模擬電路並存、專用器件與通用器件並存、附加設備過多的弊端,本文提出了數字化、集成化、精簡化的膠囊內窺鏡電子系統設計思路,並分別設計製作了膠囊內窺鏡系統的攝像模塊、無線收發模塊和usb數據傳輸模塊。Adsl, symmetrical dsl ( sdsl ), high - bit - rate dsl ( hdsl ), very high dsl ( vdsl ), and rate adaptive dsl ( radsl ) use intelligent devices similar to network cards at each end of a single twisted - pair copper wire circuit to deliver very high speeds over copper wire for distances ranging from hundreds of feet to 18, 000 feet
Adsl (不對稱數字用戶線) 、 sdsl (對稱數字用戶線) 、 hdsl (高位速率數字用戶線) 、 vdsl (極高速數字用戶線)和radsl (速率自適應數字用戶線)都使用了與網卡類似的智能裝置,它們裝在單根雙絞銅線的兩端,以在幾百到18000英尺的距離范圍內在銅線上提供極高的傳輸速度。Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影( dsa )成像系統的組成結構和數據流向進行了深入研究和分析,並對系統中的數據流向進行了完整的歸納和總結,給出了x線數字成像系統中的高速大容量數據通道的設計方案;在對sdram的控制方式做了深入探討后,給出了實現大容量多條sdram共同工作的解決方案,在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲;通過對pci總線介面的深入研究,優化後端狀態機設計和低層驅動程序開發,給出了完整的pci介面方案實現高速dma數據傳輸,完全可以滿足視頻傳輸要求;深入研究了基於大規模可編程器件的數字系統設計方法,針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點,提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案,從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。Since the wireless transmission system makes the best use of msp430 family chip, which is effective, high speed and precision, it is specially designed for the turbo _ generator monitoring which is handy or powered by batteries, or the room is very limited
本文利用msp430超低功耗和高集成度的優點,專門針對電池供電和使用空間受限的汽輪機組監視保護儀表,設計、實現了傳感信號的無線數字傳輸系統。12000 program - controlled telephones, digital transmissions and isdn have been equipped as well as two relay towers
開通程式控制電話12000門,無線電通信轉播塔2座,數字傳輸,寬帶上網。In the following chapters, a 16 - channel experimental phased array ultrasonic testing system is thoroughly explained, including digital beam forming, low noise programmable amplification of received ultrasound signal, multi - channel hi - speed hi - precision data acquisition, hi - speed real - time processing of multi - channel ultrasound signal, and hi - speed data transfer based on pci bus. in addition, the frame of software system is built
本文詳細闡述了作者所獨立研製的16通道相控陣超聲檢測實驗系統,包括數字化超聲發射/接收波束形成、超聲信號的低噪聲程式控制放大、多通道高速高精度數據採集、多通道超聲信號高速實時處理、基於pci總線的高速數據傳輸等全部電路模塊的結構及工作原理,並說明了所編寫的底層軟體系統的框架。Before the connectting between moden and other equipments, it works at the cammand mode, the cammand that is send to moden is used to set or manipulate the mode, after the connectting between moden and other equipments, it works at connectting mode, at that time, the cammand send from the computer is send to another computer which will pass the moden and telephone line. the moden control cammand is called " at " cammand, all the control manipulation is realized by sending the ascii character to moden, after the moden received the " at " cammand, it firstly judges the cammand, secondly, it analyses and executes the cammand, finnally, it executes a response by sending back a ascii character, during the deseign of below - computer, we introduce in detail the deseign of system hardware and system software, below - computer system hardware and system software, below - computer is made up of microchip collecting and controlling system, which finish the strobe and water level data collection, display and disposal, deal with the communication with the above - computer, the microchip is the centre of data dealing with, the peripheral equipments are made up of data collecttion module, control cammand input module, display module, execute output module, and long - distance communication module
在moden控制軟體的設計中,詳細敘述了moden正常工作時的幾個重要函數:初始化函數、撥號處理函數、應答處理函數、掛機處理函數,設計並調試了四個函數的通信程序,數據機工作時存在兩種模式,命令模式與連線模式,命令模式是針對功能設置的模式,連線模式是數據傳輸的模式。當數據機未與其他設備連接時,其處于命令模式,這時候下達給數據機的指令是作為數據機本身設置或操作用的;當數據機已經與其他設備連接時,其處于連線模式,所有在此時由計算機送至數據機的信息都將經由電話線傳送到另一部計算機上。專門使用於控制數據機的指令集被稱為「 at指令集」 ,對moden的所有操作(如撥號、應答、掛機等)都可以通過給moden發送ascii字元串來實現, moden在收到at命令后,先對命令進行判斷,接著分析和執行命令緩沖區中的命令,最後以自身的ascii字元對命令作出響應。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。Because hart realizes digital communication in the transmission of analog signals, it has strong competition in this interim period and grows quickly. our country also began to develop control system based on fieldbus in order to break up international monopolization
其特點是在現有的模擬信號傳輸線上實現數字信號通信,屬于模擬系統向數字系統轉變過程中的過渡產品,因而在當前的過渡時期具有較強的市場競爭能力,得到了較快的發展。The basic characteristics, framework, principles of dominant parts and application of those are studied and illustrated. at the last chapter, by devising a short - wave radio station aforementioned fundamental theories are put into practice especially digital modulation, demodulation, ddc and dug etc. the implement framework and design method of sdr are discussed by data transmission of voice including dug modulation in transmit module and ddc demodulation in receive module. moreover, satisfied results are obtained by validation on the sb3410 platform in bluewave system
針對論文設計中用到的兩個比較重要的器件hsp50214b下變頻器和hsp50215上變頻器,作了較為深入的研究並給出了詳細的描述,包括基本特徵、框架結構、各主要部分原理及在設計中的應用;在最後一章,通過設計一個短波無線電臺,將前面的基礎理論尤其是數字調制、解調及數字上、下變頻等應用於實踐中,通過實例討論話音數據傳輸的軟體無線電實現結構及設計方法,包括發射模塊中的上變頻調制和接收模塊中下變頻解調等,並在bluewave系統的sb3410平臺上運行驗證,取得了較為滿意的結果。Digital radio mondiale - part 1 : system specification
全球無線電數字傳輸drm .第一部分:系統規范A wireless digital transmission system based on serial communication port of rs
232串口的無線數字傳輸組網系統Trunk, digit transfer
數字傳輸干線Wireless data transmission is not a new conception, but the application of digital wireless transmission into turbo _ generator monitoring is a breakthrough in the system which is primarily used for the measurement, analysis and diagnosis of large rotating plants like turbo - generator units
雖然無線數字傳輸已經不是一個新的概念,但將無線數字傳輸技術應用在發電廠汽輪機組的監視保護儀表方面卻是一項新的突破。Considering the bandwidth efficiency, the error rate performance and the complexity for realization together, we construct a digital transmission system with single - carrier modulation technique using the optimum premodulation filter. then the system parameters and performance indexes are prensent
綜合考慮帶寬效率、誤碼性能和實現復雜程度以後,構建出基於單載波調制技術的無線數字傳輸系統,並給出系統參數和性能指標。The article puts forward a new digital wireless transmission system which is realized by combining a mcu as its control center with a rf ( radio frequency ) module. compared with using bluetooth technology, this resolution can guarantee the quality of the received signal even in an unstable environment, by the way the cost is quite low
本文設計一種以ti公司msp430系列的單片機為控制核心結合射頻模塊實現傳感信號的無線數字傳輸系統。與傳統採用藍牙技術的方法相比,此方法在環境不穩定時,仍能保證良好的數據傳輸質量,且所需成本小。In wireless digital transmissions, due to the delay dispersion of the transmitted symbols and the limitation of channel bandwidth, the channel may induce inter - symbol interference ( isi ), which results the frequency selective fading
在無線數字傳輸中,由於時延擴展和通道帶寬限制,引起碼間串擾,產生頻率選擇性衰落。Digital radio mondiale - system specification for digital transmissions in the broadcasting bands below 30 mhz
數字無線電全球化.廣播頻帶低於30hz的數字傳輸用系統規范This scientific research project bases on this starting point, develops the spread spectrum digital transmission system which can accomplish the digital transmission on power line
本科研項目便是基於這一出發點,開發能實現在電力線上傳輸數據的擴頻數字傳輸系統。We will discuss the construction of a digital transmission system with high bandwidth efficiency and good error rate performance. in the condition of 25khz wireless channel
本文主要討論在25khz通道條件下建立一個具有高帶寬效率和較好誤碼性能的無線數字傳輸系統。分享友人