高頻傳輸 的英文怎麼說

中文拼音 [gāobīnzhuànshū]
高頻傳輸 英文
high frequency transmission
  • 高 : Ⅰ形容詞1 （從下向上距離大; 離地面遠） tall; high 2 （在一般標準或平均程度之上; 等級在上的） above...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 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...
  • 高頻 : high frequency
  1. In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab

    針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。
  2. There are several procedures used to reduce these deteriorating effects, including the use of forward error correction techniques, error concealment methods and error resilience schemes. this paper studies error resilient techniques in internet video transmission. in this techeniques, reed - solomon ( rs ) codes across packets is used for error protection against packet loss, and a self - adaptive error concealment method based on motion feature is proposed, which can conceal errors more effectively, particularly for video sequences with acute motion

    本文針對因特網視頻傳輸中的丟包現象進行研究，一方面利用rs編碼來提高視頻壓縮碼流抵抗誤碼的能力；另一方面，提出了一種基於運動特徵的自適應誤碼掩蓋方法，能夠較好的掩蓋視頻傳輸帶來的誤碼，特別對于運動幅度較大的視頻序列更能體現出其優勢。
  3. How to combine advanced and high - efficient picture compress technology with the strong data processing ability of dsp to develop the practical wireless video transmission system, which the market can accept, is one of the current application hot points

    如何把dsp的強大的數據處理能力和先進高效的圖像壓縮技術結合起來，開發出市場所能接受的實用的無線視頻傳輸系統是當前的一個應用熱點。
  4. 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。
  5. If line length is half wave at a certain frequency and both the load resistance rt and source resistance rs are higher than the characteristic impedance zo, then both the voltages at input and at load are maximum at that frequency and both the voltages at input and at load are minimum at half of that frequency

    負載端電阻及電源電阻均高於傳輸線特性阻抗情況下，當線長為某頻率波長之半波，則輸入端與負載端電壓在該頻率均為最高，在該頻率之半時則電壓均為最低。
  6. If line length is half wave at a certain frequency and the load resistance rt is lower while source resistance rs is higher than the characteristic impedance zo, then both the voltages at input and at load are minimum at that frequency and both the voltages at input and at load are maximum at half of that frequency

    負載端電阻低於傳輸線特性阻抗及電源電阻高於傳輸線特性阻抗情況下，當線長為某頻率波長之半波，則輸入端與負載端電壓在該頻率均為最低，在該頻率之半時則電壓均為最高。
  7. This telephone communication system can use the computer network to transmit and switch the data stream for the telephone subscriber in a high speed. in this paper the telephone termination of the telephone communication system which adopts the technic of the computer, electronic and communication is designed

    本文提出了利用計算機網路來實現電話用戶音頻數據流的高速傳輸及交換的計算機網路電話通信系統，從而研製了基於計算機技術、電子技術和通信技術的計算機網路電話通信系統的用戶終端。
  8. In packet based wireless video communications, when best band distribution, not only source distortion should be considered, but also channel distortion caused by channel errors. the existing macroblock - layer rate control schemes calculates quantization parameters of all macroblocks ( mb ) in a frame in a raster scan order, and then encodes the mbs in the same order. actually, the quantization distortion is heavily dependent upon the coding order of mbs

    在基於包的無線視頻傳輸中，最佳帶寬分配時，不僅要考慮信源編碼失真，也要考慮由於通道差錯引起的通道失真；已有的宏塊層碼率控制演算法以矩陣掃描的順序計算一幀中所有宏塊的量化參數，事實上量化失真與宏塊的編碼順序有很大關系，改變宏塊的編碼順序，使復雜的宏塊分配到更多的比特數，顯然能大大提高編碼效率。
  9. In technique rebuilding of system, discharge curve of ni - mh battery was measured, and power supplies in uav were improved. the security, adaptability and efficiency of miniature aerial rs systems could be improved obviously by microwave video transmission system and self - regulating blocking net in landing

    在對系統的技術改造中，測定了ni - mh電池組放電曲線，對無人機機載電源做了改進，配合加裝的微波視頻傳輸系統和自行研製的降落阻尼攔阻網可以大大提高無人機航空遙感系統的安全性、適應性和作業能力。
  10. Principle of high speed multicenter 8 b adc - max155 156 and application in radar hf - signal transmission system

    156的原理及在雷達高頻傳輸監控裝置中的應用
  11. The coder is specially designed for writing detectors ’ id and transmission channels codes in e2prom, so as to achieve large - scale fire detection

    專門為探測器設計的寫碼器可以將代表探測器身份的id號和高頻傳輸通道碼寫入e2prom中，實現大范圍火情的探測。
  12. Experimental result demonstrate that the method mitigates the impact of bandwidth variety and is also improves the quality of multimedia transmission service

    實驗表明該方法解決了有效帶寬變化對視頻傳輸的影響，很大程度上提高了多媒體傳輸的質量。
  13. Aiming at these problems, this thesis analyzes how cofdm technology is used to implement wireless video transmission under the condition of high moving speed

    針對這些問題，本文探討將cofdm技術用於高速移動條件下無線視頻傳輸的實現方案。
  14. As the only company in the prc that has the capabilities to produce and system assemble an extensive range of different grades of computer servers with a price range from rmb20, 000 to tens of millions of rmb and being the only systems integrator in the prc owning its brand of high performance computers and servers, dawning takes prides in its well established and extensive customer base and sales distribution network which will be utilized to complement its products and technology to provide systems oy s vdsl broadband solutions to telecom operators, cable television network providers, internet service providers and other corporate customers within the prc

    作為國內唯一能同時生產由兩萬元至數千萬元人民幣，全系列不同級數服務器的生產商，及國內唯一基於自有品牌高性能計算機及高端服務器的系統集成商，曙光信息在國內擁有雄厚的客戶基礎及大的銷售網路。曙光信息將利用本身的優勢，配套公司的產品及技術，為國內的電訊經營商有線電視網路商網際網路服務供應商及其他企業客戶提供vdsl寬頻傳輸方案，進一步提升曙光信息的網路服務。
  15. There are two key technologies in streaming video. the first one is video compression technology, without high efficient compression, video transmission on network is impossible

    流式視頻技術有兩個關鍵技術，一個是視頻壓縮技術，沒有高效的視頻壓縮技術，基於網路的視頻傳輸幾乎不可能實現。
  16. Internet phone realizes the high - speed transmission and exchange of telephone subscriber ' s audio frequency dataflow by utilizing the existing computer network to make up the communication network of the telephone

    Ip電話是利用現有的計算機網路組成電話通信網路，實現電話用戶音頻數據流的高速傳輸及交換。
  17. Finally, this essay explains how to implement teleconsultation system from three steps : booking, patient inquiry and teleconsultation. the client server records patient information and make a reservation for patient ; the centre arranges the consultation time after receiving client ’ s information through data server and client can inquiry the process ; during the consultation, it hightens the quality of video frequency by using adaptive transporting. improve the real - time audio and video transmision quality, the effect is good

    遠程客戶端記錄病人基本資料，進行會診預約;中心端通過數據服務器接收病人信息後作出會診安排，然後遠程端可以查詢會診安排;會診過程中，兩端的視頻採用自適應控制演算法進行質量控制，有效的提高了實時音視頻傳輸質量，遠程會診效果比較理想。
  18. The underwater acoustic channel is very complex where cochannel interference, doppler frequency offsets, narrow bandwidth and time and frequency selective deep fades obstructs the development of high speed and fidelity underwater data transmissions. thus projects of high speed and fidelity underwater signal transmissions become a hotspot in the fields of world academic circles. the conventional serial communication must use adaptive equalizer to combat the multipath in real - time

    海洋水聲通道是一種極其復雜多變的時-空-頻變參通道，其通道窄，強多途干擾，信號起伏衰落嚴重，一直是水下信息可靠高速傳輸的主要障礙，因此如何在水聲通道中高速率準確地傳輸數據，就成為世界性的熱門課題。
  19. However, to the essential of communication technology, those techniques are all change in transmission medium or channel. recently, because of the development of dsp, ifft / fft, 46 / 128 / 256qam using in high - speed modem, and gradual introduction of new coding technique, soft decision technique, channel self - adapting, guard interval, ofdm ( orthogonal frequency division multiplexing ) arouse more and more attention. as a technology of high - speed transmission, ofdm can resist isi effectively

    近年來，隨著dsp晶元技術的發展，傅立葉變換反變換、高速modem採用的64 128 256qam技術、柵格編碼技術、軟判決技術、通道自適應技術、插入保護時段、減少均衡計算量等成熟技術的逐步引入，正交頻分復用ofdm （ orthogonalfrequencydivisionmultiplexing ）作為一種可以有效對抗信號波形間干擾的高速傳輸技術，引起了廣泛關注。
  20. Second, adapting for the command of reliability and security of the data transmission on the can network, the essay talk on the adapting frequency - selection core and make improvement on the original lsh frequency - selection algorithm. by simulating, we can see the improvement in the transferring efficiency using the link - state - history algorithm

    同時，為了適應工控系統數據傳輸可靠性和安全性的要求，對藍牙跳頻系統進行了研究，提出了lsh跳頻演算法的改進方案，模擬結果證明，該方案可較大程度上提高藍牙跳頻傳輸的可靠性。
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