diversity antenna 中文意思是什麼

diversity antenna 解釋
分集式天線
  • diversity : n. 1. 不同，異樣，差異。2. 繁多，多種，多樣，駁雜，參差。
  • antenna : n. （pl. -nae , antennas）1. 【動物；動物學】觸角。2. 【無線電】天線〈英國常用 aerial〉。
  1. In this dissertation, switched parasitic pattern diversity yagi - uda antenna array used for the base station has been illustrated after the introduction of mimo technologies and the analysis of the base station antenna design for next generation of wireless communication

    本文在介紹mimo技術和分析新一代移動通信中基站天線的設計思路的基礎上，給出了一種適用於mimo系統基站、具有角度分集功能的開關八木天線陣列。
  2. The characters of this antenna lie in three points : using yagi - uda antenna to obtain antenna gain through the radial direction ; making full use of the space of the base station along the z - axis direction to get array gain ; arranging the antenna array properly to achieve pattern diversity in azimuth plane

    其特點集中體現在三個方面:在天線徑向通過八木天線的形式獲得增益;充分利用基站空間在z向組成陣列獲取陣列增益;利用開關八木天線方向圖可重構的特性，通過合理的布局，在方位面內實現角度分集。
  3. In chapter 3, a novel planar polarization diversity antenna that has two feed ports with more than 20 db isolation has been proposed

    第三章提出了一種新型兩埠平面極化分集天線。
  4. The performance of a planar polarization diversity antenna on the handset with optimum combining and equal ratio combining is then studied

    用montecarlo模擬研究了採用最優合併和等比合併的手機上平面雙埠極化天線系統的分集性能。
  5. This pattern diversity antenna has been used as the base station antenna in the mimo experimental system and several results have been obtained

    將該天線作為基站天線用於mimo實驗系統平臺上進行了一系列的實驗，對一些典型的實驗現象和實驗數據進行了分析討論。
  6. In chapter 4, a simulation approach is presented, which combines the outdoor radio propagation model, the eigen - driven patterns of handset diversity antenna with two feed ports and combining schemes of receiving signals, to investigate the performance of a dual antenna handset under co - channel interference ( cci ) and multi - path fading environment

    第四章首先用本徵激勵方向圖的概念來產生手機雙埠分集天線的接收信號矢量，然後將其與城市室外電波傳播模型、分集合併方式相結合，建立了分析在具有共道干擾和多徑衰落環境中手機雙天線系統的性能模型。
  7. In the next generation of wireless communication, the base station antenna should have these functions : integration of different diversity methods to release multi - path fading, beam - downtilt to reduce co - channel interference, beam - forming to optimize coverage

    在設計新一代移動通信基站天線時，應使天線能綜合各種分集方式進行天線分集以消除多徑效應，具有波束下傾以減少同頻干擾，能波束賦形以實現優化覆蓋。
  8. This dissertation, sponsored by the project of “ the novel types of antennas and diversity technology ” which is one part of the 863 program, focuses on the multi - antenna design for wireless handsets in the mimo system. with the overview of the principle of the multi - antenna used in mobile terminals, the thesis introduces the design method of multiply antennas, brings forward three types of wearable antennas and three types of microstrip patch antennas applied in handheld terminals

    本文在介紹了mimo系統移動終端天線基本理論的基礎上，詳細闡述了mimo系統移動終端天線的設計方法，提出了適合於mimo移動終端的三種可穿戴式天線及三種內置微帶貼片天線;並通過天線各參數的測量以及mimo系統試驗平臺的外場測試對所設計天線進行了驗證。
  9. In chapter 2, a diversity wire antenna with two isolated ports has been optimized by using genetic algorithm and moment method ( ga + mom )

    第二章利用遺傳演算法結合矩量法（ ga + mom ）優化出了一個兩埠分集線天線結構。
  10. Finally, some applications of the analysis, such as the computation of antenna selection and diversity gain, are discussed

    最後討論了上述分析結果在mimo系統的天線選擇和分集增益計算方面的應用。
  11. In chapter 5, a simulation model to predict the diversity performance for the two - port antenna system with a given correlation coefficient has been developed

    第五章對信號非零相關的雙埠天線的分集性能進行了模擬研究。
  12. Hybrid diversity for cascade distributed antenna systems

    層疊分散式天線系統混合分集技術
  13. At last, the baseband system structure which deploys smart antenna, rake, and receive / transmit diversity techniques is proposed

    最後把智能天線技術和rake接收技術、收發分集技術緊密結合，形成比較完整的智能天線系統基帶結構。
  14. Performance analysis of space - time transmit diversity techniques for multi - antenna wcdma systems

    系統空時發送分集技術的性能分析
  15. However, in practical systems, the deployment of antenna array is difficult due to the size and / or price limitation. recently a new form of space diversity, which is based on relay channel model and through users ’ help for each other, named cooperative diversity has become an atructive technology

    但是由於尺寸，能量，價格等因素限制，在移動終端使用多根天線具有一定的困難，最近一種基於中繼通道模型的，同時利用多個用戶的互相協助而實現空間分集的技術? ?協同分集技術，成為一個新的研究熱點。
  16. One of the convertion technologies of space diversity is antenna array, which is researched and ultilized in 3g and beyond 3g system

    空間分集技術的一種傳統的應用技術是通過多天線或天線陣列實現，並在3g ， beyond3g等系統中得到研究和應用。
  17. This paper firstly introduce the background and signification of this research, tdd - cdma communication principle including its technology advantage, then research the critical technology of its physical layer such as power - control technology, soft handover, multiuser detection, diversity technology and rake receiver, software radio and smart antenna and so on

    第一章，簡明扼要地介紹了研究背景和意義以及本論文所做的工作。第二章，概述了tddcdma的通信原理，包括cdma擴頻通信原理、 tdd的工作原理、 tddcdma的技術優勢及存在的問題。
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