digital communication system 中文意思是什麼

digital communication system 解釋
數字傳輸系統
  • digital : adj. 1. 手指的；指狀的。2. 數字的，數據的。n. 1. （鋼琴等的）琴鍵。2. 手指。
  • communication : n. 1. 通訊，通知；交換；信息；書信，口信，通報。2. 傳達，傳授；傳播；傳染。3. 交通，交通機關；聯系，連絡（設備）。4. 【宗教】接受聖餐。
  • system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
  1. Major products and services of the company cover satellite communication equipment, mobile communication products, hf communication system, ctv sets, personal digital entertainment products, electronics manufacturing, instruments and meters, production equipment, software services and system integration

    公司主要產品和服務包括：衛星通信設備移動通信設備短波通信設備彩電個人數碼娛樂產品電子製造儀器儀表大生產裝備軟體服務系統集成等。
  2. Cas ( communication automation system ) includes cabling system, broadband netw - ork system, mobile phone coverage system, cable tv and digital communication system

    Cas通信自動化系統，綜合布線、寬頻網路、移動電話樓內覆蓋系統、有線電視及數字程式控制電話系統。
  3. In 2006, the digital group system of china satcom also provided coordination communication guarantee for the apec conference in shanghai, weifang international kite festival, qingdao international sailing competition and other major activities, which has won the company a sound reputation

    2006年，中國衛通的數字集群系統為上海apec會議、濰坊國際風箏節、青島國際帆船賽等重大國內國際活動成功提供了調度通信保障，得到了組織單位的充分肯定。
  4. Digital intermediate frequency system is one of the hotspots in radio communication and military research, it provided a superexcellent way for high - speed double direction digital communication

    數字中頻系統是當前軍事與移動通信領域的研究熱點之一，它為高速雙向無線數據通信提供了思路與方案[ 1 ] 。
  5. Tetra wireless digital communication system

    無線數字集群系統
  6. To ensure the reliable transmission of voice and data, the channel encoding method which the digital trunking communication system uses is crc ( circle redundant code ) & rcpc ( rate - compatible punctured convolution code ) & interleave

    為了保障話音和數據的可靠傳輸，數字集群系統採用的通道編碼方案為crc + rcpc +交織。
  7. Smart antenna has two critical tasks, one is to filter the uplink signals, and the other is to form the downlink beam, and we need adaptive algorithm and digital signal processing ( dsp ) technology to fulfill these work. adaptive algorithm is one of the most important technologies of smart antenna, and it determines smart antenna ' s speed to the wanted to signal and the complexity of the circuit of the communication system

    自適應演算法是智能天線的核心技術之一，它決定著智能天線對來波信號響應的速率和系統實現電路的復雜程度，系統需要針對各種通信環境來選擇合適的演算法，也可以採用演算法分集的方法來使整個系統工作在最佳狀態。
  8. It not only solves the problem of optimized control of the reactive current exchanging among branches, in other words, realizes the auto - tracking to the reactance factor, but also greatly improved the reliability of the system. to design the high voltage line wireless signal acquisition device with self - feed source, we applied electromagnet induction principle and digital communication technique

    系統在優化控制技術中採用了電容器補償控制的兩段控制模型，不僅解決了分支線路之問穿越無功電流的最優控制問題，實現了功率因數的自動跟蹤，而且使整個系統的可靠性大大提高。
  9. Design requirements for digital tropsphere scatter communication system

    數字對流層散射通信系統設計要求
  10. Bit synchronization circuit design for digital communication system

    數字通信系統位同步電路設計
  11. Performance analysis of underwater acoustic digital communication system in a shallow water channel

    淺海通道水聲數字通信系統的性能分析
  12. According to this requirement, the railway mobile digital communication system based on the gsm system for mobile communication is put forward in this paper to accomplish the data transfer between the control center and the locomotive. in this paper, the design of the ms ( the mobile station ) and the erected bs ( the base station ) out of the gsm cover is carried out. last we discuss the key techniques of the railway mobile digital communication system, the handoff and the error _ correct coding

    本文針對這種要求，在gsm移動通信系統的基礎上提出了建立電力機車移動數字通信網以實現機車與控制中心之間的數據傳輸的方案，設計了系統中車載移動臺、 gsm覆蓋區外自建基站的基本構造，分析了系統中越區切換、糾錯編碼等關鍵技術，並詳細的闡述了其實現方法。
  13. Study on digital communication system simulation based on matlab

    的數字通訊系統模擬研究
  14. It is necessary in digital communication system that carrier recovery can compensate frequency offset and phase jitter brought by transmission and modulation. this paper is mainly focused on carrier recovery technique. we introduce the channel model at cable headed and receiving site. firstly, we introduce the principle of carrier recovery and give some algorithms of them, which are directed - decision, reduced constellation and frequency sweeping

    本論文緊緊圍繞著數字通信系統中的載波恢復技術，在介紹了有線通信系統所用的調制解調通道模型后，首先闡述了載波恢復技術的思想和基本原理，在此基礎上給出了三種載波恢復演算法，即判決導向演算法、簡化星座判決演算法和掃頻演算法，並且給出了其各自的模擬圖：然後深入研究了一種適合高階qam並且能糾正較大頻偏的載波恢復技術：極性判決演算法。
  15. It has a wide range of application in digital communication system, radar and electronic warfare system, mechanical electronic system, etc. the object of this paper is to design the structure of mda - 2 ' s system software and design the ieee - 488 interface circuit. the paper discuss the system software structure at first, i solve some problem in this part, such as crude adjust and fine adjust, the printing of wave and data etc, the main innovation of my design is design a soft control panel and solve the system panel, i still analyse the method of digital signal processing in software, mainly discuss the median filter ' s performance

    在軟體部分本人解決了第一代調制域分析儀系統軟體中所存在的游標粗調和細調以及波形數據列印等問題，其中最為重要的是採用軟控制面板的軟體設計思想解決了系統上急於解決的控制面板問題，這是本人在課題設計上的一個創新之處；在軟體設計部分本人還對所採用的濾波演算法進行了性能分析，其中重點論述了軟體中所採用的中值濾波器的性能，並從中得出了一些重要的、有價值的結論。
  16. In recently years, with the great progress made in the field of ic and digital communication, it is possible to integrate the whole high - speed digital communication system in a single chip

    近年來，集成電路和數字通信技術飛速發展，從而使高速數據廣播/傳輸系統的vlsi實現成為可能。
  17. It designs and implements the combined digital communication system for data and voice

    並設計實現了語音數據與命令數據（文本數據）的混合通信系統。
  18. Experimental results show that the proposed techniques have good imperceptibility and can survive of common image processing operations and jpeg lossy compression with high robustness. the second one considered the watermarking system as a special digital communication system and introduced the ecc as channel coding technique. by using the turbo coding technique, we are able to reduce the watermark bit error rate and improve the robustness of the watermark so as to make counterfeiting attacks more difficult

    本文在保證水印不可見性的基礎上和載體圖像的允許降質范圍內，利用rbf神經網路技術實現數字水印信息的最大強度嵌入以增強數字水印抵禦各種惡意攻擊的穩健性;在通信論和信息論模型基礎上，引入ecc （差錯控制編碼）技術降低水印的誤碼率，使得提取水印信息更加可靠，使可能的水印攻擊變得更加困難，從而獲得更好的水印穩健性和可靠性。
  19. Suitable for the microwave equipment and body of the digital communication system and join the body in the cable or the micro - strip line frequently in the loop frequently

    適用於微波設備和數字通信系統的射頻迴路中連接射頻電纜或微帶線。
  20. Synchronization is the commander of every digital communication system, without it the system is unable to work orderly and correctly. a five - tuple of time - frequency diversity is adopted to guarantee that the synchronization signal be retrieved reliably in the receiver

    同步是任何數字通信系統有序工作的「指揮棒」 ，本研究採用5重時頻分集的方法，使得在接收端能夠可靠地恢復出系統工作所需要的同步信號。
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