頻移通信系統 的英文怎麼說

中文拼音 [bīnyítōngxìnxìtǒng]
頻移通信系統 英文
fscs frequency shift communication system
  • 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...
  • 移 : Ⅰ動詞1. （移動） move; remove; shift 2. （改變; 變動） change; alter Ⅱ名詞（姓氏） a surname
  • 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 ...
  • 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. On the demand of application and according to the soluhons menhoned above, a method of displacement waiting auto - sy ' nchronizing is put forward, which is based on match filters. at the end a complete and speeflc set of hardware circuits and software programs which haplements the scheme, is also presented in the ancle. the synchronization system was tested in the pool and in the shallow wate near m port, the result of the test shows that its performance is satisfactory

    論文著重介紹實現了跳頻通信系統同步的一般方法，並詳細分析和對比跳頻同步系統的捕獲方案，在此基礎上，提出了一個基於匹配濾波器的位移等待式自同步方案，設計、完成並給出了詳細硬體連線電路圖、軟體程序流程圖和部分程序清單，該自同步方法在實驗室水池實驗取得良好的效果，並在廈門港海域進行了現場實驗測試，具有較低的誤碼率和一定的檢測概率，結果令人滿意。
  2. Users could incept real time video stream with pda through gprs anytime and anywhere, which validate the possibility of video transmission under the third mobile communication systems

    用戶可以利用手持式設備- - - pda在任何時間，任何地點通過無線gprs網路實時接收視頻流；從而驗證了第三代移動通信系統中進行視頻通信的可行性。
  3. It is expected to be used for 3g personal handy - phone system as standard algorithms which encode speech signals and decode it. additionally, this kind of algorithms which own excellent quality can be application in viewphone and video order programme etc. the thesis introducethe algorithm structure of g. 729

    該協議在可預見的將來可能應用於三代移動通信系統中作為語音編解碼演算法。另外，由於其良好的性能也可應用在多媒體系統中如：可視電話，視頻點播等。本論文概要介紹了g . 729協議的演算法結構。
  4. Base station identity code. an attribute of a gsm ( global system for mobile communications ) cell which is a code allowing a distinction between local cells having the same radio frequency

    基站識別碼。 gsm （全球移動通信系統）蜂窩小區的一個屬性，通過基站識別碼，不同的本地蜂窩小區可以使用相同的無線頻率。
  5. Design of impendence match for high frequency power amplifier of mine mobil communication system

    礦井移動通信系統高頻功放環節的阻抗匹配設計
  6. Chaos of fsk frequency - hopped communication system

    跳頻頻移鍵控通信系統中的混沌
  7. And people are getting close touch with the mobile communication in the daily life. for the sake of each corresponding using the available frequency source and increasing mobile communication net, radio electric cover frequently adopts the frame of tiny honeycomb

    為了充分地利用現有的頻率資源和增加移動通信網的容量以達到個人通信的目的，目前的移動通信系統的無線電覆蓋常採用微蜂窩的結構。
  8. Since the early 1990s, when the electronics industry came to the stage of digital technology, china has broken through in high - end series personal computers and servers, large - scale parallel computer systems, chinese electronic publishing systems, large - scale spc exchanges for central offices, mobile communications systems, sdh wdm fiber communications systems, thin route satellite communications systems, new generation digital video terminals, manufacturing technology for 0. 8 - 0. 35 m cmos integrated circuit chips, etc

    到90年代進入數字技術階段，高檔系列微機和服務器產品、大規模并行計算機系統、中文電子出版系統、大型局用數字程式控制交換機、移動通信系統、 sdh波分復用光纖通信系統、稀路由衛星通信系統、新一代數字視頻終端、 08 ? 035微米cmos集成電路晶元製造技術等，都有突破性進展。
  9. Recently i have completed the report for jiangsu paging auto - connection - anen projects feasibility research and its system design. in this project, the inter - system interference from the different co - frequence paging areas and the inter - system interference between paging system and mobile systems co - located have been reduced successfully. this project has been awarded the gold prize by jpta

    近期完成了江蘇省無線自動尋呼聯網擴容工程的可行性研究報告及設計，該工程很好地解決了系統內不同同播區間的頻率干擾以及尋呼與移動通信系統同共空間時相互之間的干擾，該工程獲江蘇省郵電管理局頒發的優秀工程獎，並推薦參加建設部的優質工程評獎。
  10. The mobile multimedia communication system need to support the transmission of high - speed data and variable speed data compared with the ordinary spread spectrum communication. the data rate ranges from several kbps to hundred kbps for wide up to 2mbps. in order to assure different data rate to transmission in the same spread spectrum bandwidth, we need to use different lengths and orthogonal pn codes

    傳統移動通信系統所提供的數據速率一般只有幾kbps ，而移動多媒體通信所要求的數據速率范圍為幾mbps甚至幾十mbps ，在同一擴頻系統內傳輸多媒體的擴頻比也不一樣，就要採用不同長度的偽碼，而且偽碼之間必須保證正交性或準正交性。
  11. According to wireless and mobile communication system ' s background, this thesis study on estimation of time - varying dispersive channel from four respects : ( 1 ) aid of pilots, ( 2 ) cyclic prefix ( cp ), ( 3 ) blind method, and ( 4 ) ofdm system with multiple transmitting antenna, in which the typical ways is decision - feedback algorithm and self - adaptive block algorithm

    本文以無線和移動通信系統為背景，從四個方面對時變色散通道下的ofdm系統的通道估計和均衡問題進行了研究。第一是基於導頻符號的通道估計方法，第二是基於循環前綴的通道估計方法，第三是通道的盲估計方法，第四是基於多天線ofdm系統的通道估計和均衡方法的研究。
  12. Code division multiple access ( cdma ) communications systems being possessed of the merits of great capacity and soft hand - off and so on must have taken a significant role in future wireless communications systems. because pn sequences used in communications systems are been vertical completely, when numbers of user are more, there are multiple access interference ( mai ) in cdma and serving quality in communications systems is reduced

    碼分多址（ cdma ）通信系統以頻譜利用率高、系統容量大、頻率管理容易，軟切換、移動臺發射功率低、通道的傳輸速率高等優點代表了新一代移動通信，在未來的無線通信系統中必將扮演極為重要的角色。
  13. Smart antenna may reduce coggege of electronic engineering of uestc, the cochannel interferences ( cci ), enhance the user capacity and spectrum efficiency, reduces the transmit power and electromagnetic interferences, enhance the transmit efficiency, dynamically divide cells in third generation cellular

    智能天線技術應用於第三代移動通信系統中具有可以減小因頻率復用造成的共通道干擾（ cci ） 、提高頻譜利用效率及增大系統容量、減小發射功率和空間電磁干擾、增加發射效率、對小區進行動態劃分等優點。
  14. Mimo - ofdm has been regarded as the key technology of b3g communication system because it can improve system capacity and spectrum efficiency. however, ofdm is very sensitive to frequency offset

    由於能夠顯著改善頻譜效率、提高數據傳輸速率和系統容量， mimo - ofdm技術被廣泛認為是后三代移動通信系統（ b3g ）的關鍵技術。
  15. On the other hand, cdma ( code - division multiple access ) communication system has been widely considered as the mainstream of 3g communication system, because it has the good qualities such as high utilization ratio of frequency band, low transmission power, powerful anti - multiple path falling and flexible capacity

    另一方面， cdma通信系統以其高頻譜利用率、低發射功率、強抗多徑衰落特性、軟容量等優點，已被廣泛認為是第三代移動通信系統的主流。
  16. In mimo systems, the signal can be sent and received through multiple antennas or antenna arrays. the combination of ofdm and mimo can effectively alleviate the problem of multi - path propagation, increase system capacity, and obtain more robust system capability, so they are considered as the main stream techniques of the future wireless communication system

    Ofdm技術固有的抗通道多徑和頻率選擇性衰落特性以及mimo在提高系統頻譜利用率，改善無線通信系統性能等方面的巨大作用，使得這兩種技術的融合成為了下一代移動通信系統的必然選擇。
  17. Now cdma is very mature and becomes the key technique of the third - generation mobile communication systems. more and more attention is paid to the technique of multi - carrier. mc - cdma is combination of ofdm and cdma, thus advantages of both techniques are exploited

    近年來移動通信技術發展迅猛，碼分多址技術到目前已經非常成熟，並成為了第三代移動通信系統的核心，人們將眼光聚集在正交頻分復用調制技術，將多載波調制技術應用於cdma中，從而兼具多載波技術和cdma技術的優點。
  18. Cdma ( code division multiple access ) is a promising technology for future mobile communication system because of its several features with which other multiple access technology can not compare : higher efficiency of frequency allocation, robust anti - multipath effect, macro diversity, mitigating interference, soft capacity, low power, soft handoff, simple frequency design, easy access, and so on

    碼分多址接入（ cdma : codedivisionmultipleaccess ）方式以頻譜利用率高、抗多徑、抗干擾、軟容量、低功率、軟切換、宏分集、頻率規劃簡單、用戶接入方便等其它多址技術不可比擬的優越性被認為是未來移動通信系統的理想接入技術之一。
  19. Cdma ( code division multiple access ) is one of the promising technology for futufe mobile conununication system because of its several featurs with which other multiple access technology can not compare : higher efficiency of frequency allocation, robust ani - multipath effect, macro diversity mitigating intefference, soft capacity low powet, soft handoff simple frequency design, easy access, and so on

    碼分多址接入（ cdma ： codedivisionmultipleaccess ）方式以頻譜利用率高、抗多經、抗干擾、軟容量、低功率、軟切換、宏分集、頻率規劃簡單以及用戶接入方便等其它多址技術不可比擬的優越性被認為是未來移動通信系統的理想接入技術之一。
  20. The author has applied bcpc code to two fields. one is a frequency hopping ( fh ) communication system. theoretic analysis and simulation results show bcpc sequence features ideal random performance, good hamming correlation property and wide fll gap

    將scqc碼應用於跳/擴頻通信系統（ fh - ss ）的碼變型（即反轉移相鍵控）器中，分析了scqc碼序列的性能。
分享友人
分享到 Line

分享到臉書