碼分多址 的英文怎麼說

中文拼音 [mǎfēnduōzhǐ]
碼分多址 英文
cdma code division multiplex address
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 址 : 名詞（建築物的位置; 地基） location; site; ground; foundation
  1. Cdma cellular system

    碼分多址蜂窩系統
  2. 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。
  3. The main research work of this thesis is focused on the encoding and decoding technologies in the optical code divison multiplexing access system

    本文主要針對一維和二維光碼分多址系統中的編解碼技術方案進行研究。
  4. In this paper, after introduction of the code division multiple access ( cdma ) and orthogonal multicarrier ( mc ) technique, the system model of mc - cdma is analyzed and the bit error rate ( ber ) performance in downlink and uplink channel is shown in awgn channel by computer simulation

    本文在碼分多址技術和正交多載波技術原理基礎上，分析了高斯白噪聲通道中多載波碼分多址（ mc - cdma ）系統的數學模型，並且使用不同的擴展碼對下行通道和上行通道誤碼率性能分別作了計算機模擬分析。
  5. Direct sequence - code divition multiple access ( ds - cdma ) technology is achieved easily and used widely at present its receiver capability is confined by two factors, one of which is the multiple access interference ( mai ) which makes the capacity low, another of which is the near - far problem

    直接序列擴頻-碼分多址（ ds - cdma ）技術是最易實現、也是目前應用最廣的一種方式，它的接收性能受到兩個主要的限制：一個是多址干擾造成的性能下降；另一個則是遠近效應問題。
  6. Uplink space - time channel blind estimation for space - time coded multicarrier code division multiple access systems

    空時編碼多載波碼分多址系統上行空時通道盲估計
  7. Evm measurement algorithm for td - scdma ue conformance test based on iterative process

    基於迭代的時分同步碼分多址系統終端誤差矢量值一致性測試演算法
  8. 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
  9. Spreading codes ensure the mc - cdma a multiuser system

    擴頻碼保證系統為一個碼分多址系統。
  10. S - cdma synchronous - code division multiple access

    同步碼分多址方式
  11. A 3 - d code for ocdma system

    用於光碼分多址系統的一種3d地址碼
  12. A policy of call admission control in wideband ds - cdma system

    寬帶直擴碼分多址系統中的一種呼叫允許控制策略
  13. Cdma is a kind of advanced wireless spread spectrum technique

    碼分多址技術（ cdma ）是一種先進的無線擴頻技術。
  14. A cascade structure of space - time multiuser detector in cdma systems

    空時分層結構碼分多址系統的上行多用戶檢測
  15. Cdma - code division multiplex access

    碼分多址
  16. Cdma, code division multiple access

    碼分多址
  17. Cdma : code division multiplex access

    碼分多址
  18. First of all, correlation properties of orthogonal variable - length spreading sequences are analyzed and new closed - form expressions of mai of the cdma systems are derived in terms of aperiodic partial correlation of variable - length sequences. then, the self - interference ( si ), mai and bit - error - rate ( ber ) performance of the desired user in a multi - rate cdma system are analyzed

    本文首先分析了正交變長擴頻序列的相關特性，導出了以變長序列非周期部分相關表示的cdma系統多址干擾（ mai ）新的分析表達式，並分析了多速率碼分多址系統中，期望用戶的自干擾（ si ） 、多址干擾和誤比特（ ber ）性能。
  19. In code - division multiple - access ( cdma ) systems, the auto - and cross - correlation properties of the spreading sequences employed play an important role on the level of the self - interference ( si ), multiple access interference ( mai ) and adjacent cell interference ( aci ), and therefore directly influence the performance and capacity of the systems

    在碼分多址（ cdma ）系統中，擴頻序列自相關和互相關特性的好壞在很大程度上決定了系統自干擾（ si ） 、多址接入干擾（ mai ）和鄰區干擾（ aci ）的大小，從而直接影響著系統性能優劣和容量大小。
  20. The analysis showns that mrc decreases the outage probability and increases the system coverage, compared with the soft handoff in a cdma system

    研究結果表明它比碼分多址中的軟切換中所採用的選擇式宏分集能夠帶來更低的中斷率，從而提高系統的覆蓋。
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