frequency division multiplexing 中文意思是什麼

frequency division multiplexing 解釋
頻分多路復用，頻分多路傳輸
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  • division : n 1 分，分開，分割；分劃，區分。2 分配；分派。3 分裂，（意見）不一致，傾軋。4 區域；〈英國〉選區...
  • multiplexing : 倍加
  1. Orthogonal frequency division multiplexing ( ofdm ) is a special case of multicarrier transmission, in which a single high data rate datastream is transmitted using a number of lower data rate subcarriers

    Ofdm （正交頻分多路復用）是一種特殊的多載波傳輸方式，由於它使用一系列低速子載波并行傳輸數據，使得傳輸速率得到大幅度提高。
  2. Orthogonal frequency division multiplexing ( ofdm ) is a special case of multicarrier transmission, in which a single high rate datastream is transmitted using a number of lower data rate subcarriers

    Ofdm （ orthogonalfrequencydivisionmultiplexing正交頻分多路復用）是一種特殊的多載波傳輸方式，由於它使用一系列低速子載波并行傳輸數據，使得傳輸速率得到大幅度提高。
  3. This thesis based on europe dvb - t cofdm ( coded orthogonal frequency division multiplexing ) system, does a lot of research from the development, the technique instrument of dttb to the whole dvb - t system structure and system flow. then brings forward its own ideas and optimizing advices after the stimulation of normal dvb - t system. firstly the thesis describes the needed conditions, the technical difficulties and the present problems of dttb

    本課題就是基於歐洲dvb - tcofdm系統技術，從當前數字電視地面廣播的發展，數字電視地面廣播標準的技術手段到完整的dvb - t系統流程，做了一定的研究工作，並根據標準dvb - t系統做了建模模擬和分析，提出了對dvb - t系統的認識和優化設想。
  4. The u. s. transmission format is called 8 - vsb ( for 8 - level vestigial sideband ), which is more susceptible to multipath distortion than the european system, called coded orthogonal frequency division multiplexing, or cofdm

    美國的傳送格式是八階殘邊帶（ 8 - vsb ） ，這種格式比歐洲的編碼正交分頻多工（ cofdm ）系統，更容易受到多路徑問題影響。
  5. Orthogonal frequency division multiplexing ( ofdm ) is a multi - carrier modulation method

    正交頻分多路復用是一種多載波調制技術。
  6. Aiming at the lower performance and floor effect of the traditional orthogonal frequency division multiplexing channel estimation, the ofdm channel estimation algorithm based on wavelet recursive least square support vector machine ( wrls - svm ) is proposed

    摘要針對傳統多徑衰落下的ofdm導頻通道估計性能低下，地板效應的缺陷，提出了基於導頻的小波遞歸最小二乘支持向量機（ wrls - svm ）時變通道頻率估計演算法。
  7. An apparatus and method having a de - interleaving memory and a controller is used for de - interleaving interleaved data in a coded orthogonal frequency division multiplexing receiver

    正交編碼分頻多工接收器中一種具有一反交錯記憶體和一控制器，而用來將已交錯資料反交錯的裝置與方法。
  8. Some novel technologies are also proposed, such as two dimensional spread spectrum ( 2d - ss ), self - encoded spread spectrum ( sess ), multiple input multiple output ( mimo ), orthogonal frequency division multiplexing ( ofdm ) and so on

    另外，對目前新興的一些抗干擾技術，如二維擴頻、超寬帶、多天線、自編碼擴頻等技術也做了簡單分析。
  9. At present, orthogonal frequency division multiplexing ( ofdm ) technique has been widely used in wideband wireless communication systems, such as dvb and ieee 802

    作為一種可以有效克服通道多徑效應的傳輸手段，正交頻分復用（ ofdm ）技術正得到日益廣泛的關注與應用。
  10. A subspace - based blind channel estimator has been developed for space time coding orthogonal frequency division multiplexing ( stc - ofdm ) system with two transmit antennas and two receive antennas

    摘要針對使用2個發射天線和2個接收天線並且採用循環前綴的空時編碼正交頻分復用系統（ stc - ofdm ） ，提出了一種通道盲估計演算法，並給出通道可被辨識的條件。
  11. Multiple - input multiple - output ( mimo ) technique, offers an effective way to combat and even exploit fading. another technique, orthogonal frequency division multiplexing ( ofdm ), proposed in 1960s, now has gained much attention with its ability to reduce system complexity

    而60年代提出的正交頻分復用（ ofdm ）技術，由於能夠顯著簡化系統接收機的設計並具有優越的頻譜效率，近十多年來也獲得了極大的關注。
  12. This paper concentrates on the orthogonal frequency division multiplexing ( ofdm ) technique and some techniques to resist multipath fading. eliminate isi through use of a cyclic prefix. diversity techniques. using adequate ofdm combined with channel coding ( cofdm ) can enhance the ability to lower the effect of multipath fading

    本文研究了ofdm的基本原理及抗多徑衰落的一些措施，如加循環前綴，利用多徑進行分集接收，將ofdm與通道編碼及交織結合起來，頻域均衡。
  13. In this paper, the fundament, the system architecture and the application of orthogonal frequency division multiplexing ( ofdm ) were discussed, and the mathematic model of time - varying multi - path based on the discussion of mobile fading channel characteristic were analysed, and the channel model were discussed by computer simulation

    本文首先簡要介紹了正交頻分復用（ ofdm ）的基本原理、系統組成以及ofdm的實際應用。在分析移動通道衰落特性的基礎上，分析了多徑時變通道的數學模型；並用計算機模擬的方法對通道模型進行了討論。
  14. Cofdm coded orthogonal frequency division multiplexing

    編碼正交頻分復用
  15. Ofdm orthogonal frequency division multiplexing

    正交頻分復用
  16. Ofdm : orthogonal frequency division multiplexing

    正交頻分多址
  17. The application of adaptive allocation techniques to ofdm ( orthogonal frequency division multiplexing ) systems optimizes the use of system power

    摘要自適應分配技術的應用能優化多用戶正交頻分復用系統功率的使用。
  18. Sub - carriers power assignment algorithm for maximization throughput of adaptive orthogonal frequency division multiplexing systems

    自適應正交頻分復用吞吐量最大化功率分配演算法
  19. Because of enabling to provide high - rate and high - quality wireless and mobile communication service, orthogonal frequency division multiplexing ( ofdm ) system is becoming a very hot research topic recently, and it is especially one of the technical difficulties to estimate and equalize the time - varying ( tv ) dispersive channels

    在移動無線通信中，由於能提供高速率和高質量的通信服務，正交頻分復用（ ofdm ）技術成為當前國際上的研究熱點，而時變色散通道的估計和均衡問題是其中的技術難點之一。
  20. Adsl transmission equipment vendors use either frequency division multiplexing or echo cancellation to achieve this huge gain in throughput

    Adsl傳輸設備供應商不是利用頻分多路復用，就是利用回波消除，以獲得吞吐量有大幅度的提高。
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