鄰頻道 的英文怎麼說

中文拼音 [līnbīndào]
鄰頻道 英文
adjacent channel
  • 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...
  • 道 : Ⅰ名詞（道路） road; way; route; path 2 （水流通過的途徑） channel; course 3 （方向; 方法; 道理） ...
  • 頻道 : frequency channel; channel
  1. The carrier wave is modulated directly by the baseband signal at several frequency point in l band and s band. firstly, this paper clarifies the theory of i / q modulation, elaborates evm and acpl, and analyzes the effect of amplitude and phase unbalance and dc offset on evm. secondly we review the basic principle of phase locked loop and it ’ s composing parts, including the basic conception and design method of pll frequency synthesizer, especially introduce the charge pump pll frequency synthesizer in detail

    首先，在闡述i / q正交調制基本原理的基礎上，通過對誤差矢量和鄰近通道功率泄漏的詳細分析，定性、定量地討論了各種非理想電路因素（如相位不平衡、幅度不平衡、直流偏差等）對調制器性能的影響;其次，介紹了鎖相環的工作原理和基本組成部分，包括鎖相環的設計和環路濾波器的設計，特別詳述了電荷泵鎖相頻率源;第三，介紹了採用直接調制技術模擬衛星信號的射頻前端的設計;最後，對整個直接射頻調制系統進行測試，結果基本上達到了課題要求。
  2. Since the envelope of modulated signal fluctuates, these methods generate unwanted intermodulation distortion ( imd ) products in a nonlinear radio frequency ( rf ) power amplifier ( pa ). so it is necessary to use linearization technique to reduce the adjacent channel interference ( aci )

    但包絡變化的調制信號經過非線性射頻功放后會產生交調分量，因此必須採用線性化技術來減少由此產生的鄰道干擾。
  3. The predistortion, which aims at compensating for the nonlinear distortion caused by the power amplifier, has a good performance in eliminating the nonlinear distortion of am / am & am / pm, improving the aci and spectrum efficiency

    預失真技術是針對射頻功率放大器非線性而提出的一種補償技術，可以有效消除由非線性造成的傳輸信號的幅度和相位失真，降低信號鄰道干擾（ aci ） ，提高頻譜利用效率。
  4. Research on first adjacent channel interference in fm iboc dab

    系統第一鄰頻道干擾研究
  5. Acent picture carrier trap

    鄰頻道圖象載波陷波器
  6. Aca adjacent channel attenuation

    鄰頻道衰減
  7. Adjacent channel transmission

    鄰頻道傳輸
  8. Acent video carrier

    鄰頻道圖象載波
  9. Acent audio carrier

    鄰頻道伴音載波
  10. As the test signals of the trial will be transmitted via channels 35 and 37 ( never been used before to transmit television signals ), thus the television antenna systems using the said channels or the adjacent channels 34, 36 and 38 for other usages, such as the video cassette recorder ( vcr ) channel or closed circuit channel, might encounter interference during the said period

    是次測試使用的第35及37頻道，由於以往未有用作電視訊號發射，故任何電視天線系統如透過以上頻道或相鄰頻道（即34 、 36及38 ） ，作其他用途，例如用作錄影機播帶頻道，保安攝影機頻道等，將可能受到干擾。
  11. Since this was the first time that master s words were broadcast in real time at the center using internet technology, many elderly fellow practitioners were amazed and made frequent enquiries about the details. everyone had the feeling that distant places around the globe now seemed to be next door

    由於這是第一次在道場使用網路科技來播送師父的現場開示，許多年長的同修在驚嘆之餘，頻頻詢問相關細節，大家都有天涯若比鄰的感受！
  12. Analysis of a forward link cdma signal spectral regrowth and adjacent - channel power ratio

    信號前向鏈路頻譜增生和鄰道功率比估計
  13. From the research of ijf - oqpsk, we draw the conclusion that, compared with bpsk, qpsk and msk modems, in the band - limited and non - linear channel, it has nearly constant envelope, less spectral spreading, better pe performance and the less interference of the adjacent channel, et. so, it is more suitable for the satellite communication channel

    通過對ijf ? oqpsk的分析研究可知，它相對于傳統的bpsk和qpsk調制方式，在帶限非線性通道下，具有包絡近似恆定，頻譜擴展小， eb no惡化小，對鄰道產生干擾弱等優點，因而它更適合於衛星通道。
  14. In communication systems like this, on account of nonlinearity which may arouse intermodulation of power amplifier may bringing the increaseing of ber because interferes from adjacent channel. hence, we did the analysis of relationship between im3 and ber in the system

    但是在正是因為採取這種調制方式，由於功率放大器的（ pa ）非線性失真會引起交調效應產生同頻及鄰頻通道的干擾而使誤比特率（ ber ）增加。
  15. More efforts are focused on analysis and computer simulation of the cochannel interference and ieee802. 11b interference ' s impact on bluetooth performance respectively in awgn and rician fading channel. furthermore, the scheme of designing bluetooth point - to - point experimental system with the rok101 007 module and free bluetooth protocol stack cstack is discussed. results in this thesis provide valuable references for the deployment of bluetooth networks

    然後，通過建立模型，本文在理論上詳細分析了awgn通道和rician衰落通道中藍牙同通道干擾，鄰通道干擾以及同頻段ieee802 . 11b干擾對藍牙ber性能，數據以及語音鏈路性能的影響，並針對各種情況分別進行了詳細的計算機模擬，其結果對藍牙網路的鋪設具有一定的指導意義。
  16. We believe that the commencing date for licensing is impractical and should be postponed until after the expected improved chinese dtt standard could be evaluated and coordination with mainland authorities has reached a stage when a workable frequency plan can be finalised. therefore, the target date for commencing digital terrestrial television services should be postponed to end of 2003 or early 2004

    我們認為建議的數碼頻道牌照起行日期是不切實際的，我們認為應該延後待中國內地選定數碼地面電視制式后及與中國內地鄰近省市的頻譜協調后才作本港製式的確定；換言之，我們數碼電視地面電視服務的起行日期應延遲至2003年底或2004年初。
  17. Therefore, the information obtained from the adjacent seismic channel can he extrapolated to the other channel by using time - frequency analysis method of wavelet

    據此，利用小波時頻分析技術方法，可以把相鄰道的信息外推到其它地震道上。
  18. In addition, the high and low frequency information of the adjacent channel can be transformed to the other seismic channel by taking the advantage of better similarity of subsection time - frequency analysis of seismic data, as well as the capability of learning, training and memorizing of the wavelet network

    同時，利用地震資料分段時頻分析的相似性較好和小波網路學習、訓練及記憶能力較強的特點，可以較好地把井旁道的高、低頻信息轉換到相鄰道上。
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