現代通信系統 的英文怎麼說

中文拼音 [xiàndàitōngxìnxìtǒng]
現代通信系統 英文
modern communication system
  • 現 : Ⅰ名詞1 （現在; 此刻） present; now; current; existing 2 （現款） cash; ready money Ⅱ副詞（臨時; ...
  • 代 : Ⅰ動詞1 （代替） take the place of; be in place of 2 （代理） act on behalf of; acting Ⅱ名詞1 （歷...
  • 通 : 通量詞（用於動作）
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 現代 : 1 （現在這個時代） modern times; the contemporary age [era]2 （現代的） modern; contemporary現代...
  • 通信 : communication; communicate by letter; correspond
  • 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
  1. Forward error correction ( fec ) has been widely used in the modern communication system

    在現代通信系統中，前向糾錯（ fec ）得到了廣泛的應用。
  2. Mixers are the key components of many microwave and millimeter - wave systems. the super - heterodyne receiver is always applied in modern communication system, mixer becomes the key component as is at the first part of system. but it is more and more difficult to get the choiceness lo source of the same band with the system is working at high frequency especially in the millimeter - wave. sub - harmonic mixer is a good solution to this problem now. in this circuit we need just half 、 quarter 、 even 1 / 8 of the rf signal frequency. in this paper the design and fabricate of sub - harmonic hmic mixers ( 2, 4 ) at w - band are introduced

    混頻器是微波通信、射電天文學、雷達、等離子物理、遙控、遙感、電子對抗，以及許多微波測量系統中至關重要的部件。在現代通信系統中，毫米波頻段通常採用超外差接收機，混頻器作為第一級就成為關鍵部件。由於在毫米波頻段，同頻段高性能的本振源成本高，技術難度大，採用分諧波混頻技術是解決此問題的有效途徑，只需射頻頻率1 / 2 、 1 / 4甚至1 / 8的本振頻率即可實現混頻。
  3. In a word, dead against transportation characteristic, linked closely with the development of modern communication technology and national public communicating network, the article is of significance for reference to construction and development of highway framework, water carriage channel. harbor hinge and traffic support system

    總之，本文從交通行業的特點出發，緊密結合現代通信技術和國家公眾通信網的發展，對公路主骨架、水運主通道、港站主樞紐和交通支持系統的建設和發展具有借鑒意義。
  4. A retrodirective array can transmit a signal back to the interrogator ’ s position without any a priori knowledge of the incoming angle or relying on sophisticated digital signal processing algorithms. this merit makes it have good applied possibilities in modern military, especially digital commercial communication systems

    方向回溯天線能夠自動跟蹤來波方向，而不需要來波方向的先驗知識和復雜的數字信號處理演算法，這一特點使其在現代軍用、尤其民用數字移動通信系統中有很好的應用前景。
  5. They are increasingly replacing conventional communication forms and obtaining extensively applications in modern military and commercial communication systems, for example, cdma communication system, gps, measuring and control system, satellite chain, identification of friend or foe and etc. therefore, corresponding dsss electronic counter technique becomes a big problem to solve in electronic warfare domain

    正日益取代常規通信而廣泛應用於現代軍事和商用通信系統中，如碼分多址（ cdma ）通信、全球定位系統（ gps ） 、測控、衛星鏈路和敵我識別等。因此，與之對應的直擴通信對抗技術也就成了通信對抗領域亟待解決的問題。
  6. As the key block of the wireless communication transmitter in rf, it is very useful in improving the output power and efficiency, lowering the loss of the supply, lowering the size and the weight, lengthening the time of communication. class e power amplifier which is suitable to amplify envelop signal is very important in modern communication system

    功率放大器（ pa ）作為無線通信射頻發射機中不可缺少的關鍵電路，對于提高手機的功率效率、降低電源損耗、減小體積重量、延長通話時間有著舉足輕重的作用，而適用於恆包絡信號放大的e類功率放大器，更是在現代通信系統中佔有十分重要的地位。
  7. After the investigation of the general technology of hardware implementation, how to implement the kasumi algorithm using field programmable gate array ( fpga ) device is discussed in detail, and the author develops the cipher chip of kasumi algorithm, the kasumi cipher card based on 32 - bits pci bus, the wdm device driver that used in windows2000 / xp, and the software to demostrate encrypting data link. finally, an application demostration is constructed with all the above implementation

    在此硬體實現的結果晶元基礎上，設計了32位的基於pci總線的kasumi加密卡，編寫了windows2000 xp下的windows驅動程序模型（ wdm ）驅動程序和鏈路加密應用程序，由此構成一個應用演示系統，作為研製結果的應用評估，為進一步進行第三代移動通信系統相關安全技術研究和開發提供了基礎條件。
  8. Convolutional coding is an error - control coding to process continuous data stream. the viterbi decoding algorithm is a type of maximum likelihood algorithm for memoryless channel. the convolutional coding employed with viterbi decoding algorithm has already become indispensable channel coding scheme in modern communication systems

    卷積碼是一種糾錯編碼，它可以對連續的數據流進行處理; viterbi譯碼演算法是一種對無記憶通道卷積碼進行譯碼的最大似然譯碼演算法，使用viterbi譯碼演算法的卷積碼已成為現代通信系統不可缺少的通道編碼方案。
  9. In modern communication system, the inter - symbol interference ( isi ) caused by non - ideal character of channel is the main factor which affect communication quality

    現代通信系統中，由於通道的非理想特性而引起的碼間干擾（ isi ）是影響通信質量的一個主要因素。
  10. The basis for our modern system of communication began when samuel mores invented the telegraph, alexander graham bell invented the telephone, and guglielmo marconi invented the telegraph without wires

    現代通信系統的起點是從薩繆爾?摩爾斯發明電報、亞歷山大?格雷漢姆?貝爾發明電話、以及古格里莫?馬可尼發明無線電報開始的。
  11. High - speed data transfer technique is one of the key hotspot aspects in modern communication system

    高速數據傳輸處理技術是現代通信系統研究的主要新熱點方向之一。
  12. With the trend that cdma will be the dominant multi - access scheme in the new generation of wireless communication, how to apply spatial processing in cdma system has been becoming the emphasis of research in smart antenna. a proper method is space - time processing due to the space - time structure of wireless channel. beamforming can be combined with rake to form 2d rake receiver, which can effectively weaken the enhancement of mai in conventional rake receiver. however a more effective method is to use space - time filtering. these two scheme will be discussed and the structure and realization will be presented

    碼分多址技術逐漸成為新一代通信系統的主流多址技術，如何在碼分多址系統中引入空域處理以改善系統性能是當前智能天線技術研究的重點之一.考慮到無線通道的時空二維結構特徵，一種合理的實現方式是採用時空處理方法，將波束形成技術與時域分集技術相結合;另一種更有效的方法是在接收端採用時空二維聯合處理，對無線通道進行時空二維均衡
  13. Simulation and analysis of communication system based on simulink

    的現代通信系統模擬分析
  14. Modern communication system

    現代通信系統
  15. The broadband amplifier is an important type of amplifiers using in modern communication systems

    寬帶放大器是現代通信系統中的一種重要的放大器類型。
  16. Modern communication system has been switched from analog signals transmission to digital signals transmission

    在現代通信系統中，使用數字信號傳輸的優勢越來越明顯。
  17. Abstract : abstract ： reliability design is an important approach to ensure the reliability of modern communication system

    摘要：摘要：可靠性設計是現代通信系統可靠性保證體系的關鍵環節。
  18. A large number of data and video information which produced by data terminal and pronunciation information need to transmit in modern communication system

    現代通信系統中，不僅僅需要傳輸語音信息，還需傳輸各種數據終端產生的大量數據信息以及視頻信息。
  19. In current communication system, the application of dual - band dual - polarized antenna satisfies the needs of communication system ’ s upgrade, solves the problem of multipath fading, reduces the number and lowers the cost of the antennas

    在現代通信系統中，雙頻雙極化天線的應用能夠滿足通信系統的不斷升級的要求，能有效解決多徑衰落問題，能減少天線數量、降低天線成本。
  20. Being an important linear block code in error control field, the reed - solomon ( rs ) code has very strong capability of correcting random and burst errors, which is widely used in various modern communication systems to satisfy the requirement of channel reliability

    Rs （ reed - solomon ）碼是差錯控制領域中一類重要的線性分組碼，由於具有很強的糾錯能力，因而被廣泛地應用於各種現代通信系統中，以滿足對通道可靠性的要求。
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