fading in 中文意思是什麼

fading in 解釋
漸顯
  • fading : 淡變
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. In order to elaborate the app licability of osl to loess, especially single aliquot regenerative protocol ( sar ), involving stimulation of the same disc with an infra - red laser diode followed by blue leds to polymineralic fine - grains of loess, such explanations as light bleaching, preheat, anomalous fading, prior - ir exposure were investigated in this paper. for drawing adequate coarse grains from loess, quartz and feldspars, as well as loess, were etched by hydrofluoric acid and fluorosilicic acid. the sequence of ages of holocene loess in weihe rivier basin has been established by single - aliquot ( sar ) and multiple - aliquot using fine - grains and sar using coarse - grains

    本文通過渭河流域全新世黃土的光曬退實驗，地表黃土樣品的d _ e值測定，細顆粒單片的預熱、反常衰退、紅外暴露實驗，說明釋光測年在全新世黃土中應用的可行性及單片再生劑量法（ sar ）在黃土細顆粒中的適用性；為了從黃土中分離出足夠的粗顆粒，進行了純石英和長石的氫氟酸（ hf ）和氟硅酸（ h _ 2sif _ 6 ）溶蝕實驗，黃土粗顆粒石英溶蝕分離實驗；通過細顆粒單片、多片的blsl 、 irsl和post - irosl ，熱釋光，及粗顆粒石英的blsl的年代測定，選擇適于全新世黃土的釋光測年方法，並建立了渭河流域全新世黃土的年代序列。
  3. With antoina as the typical representative, cather depicts the character features of pioneer women of the new generation, thoroughly explores the essence of pioneer spirit, and subtly expresses her persistent pursuit for the fading spiritual beauty in the materialistic society

    凱瑟通過人物並置對照法來刻畫和挖掘以安東妮亞為代表的新一代拓荒女性的性格特點，並深入地探索了拓荒精神的精髓，表達了凱瑟對物慾橫流的現代社會中日益消逝的精神美的不懈追求。
  4. The unique cave dwellings which were made in loess is disappearing, and the culture of cave dwellings are fading in qingyang

    慶陽獨特的黃土窯洞建築正在消失，窯洞民居的文化蘊涵也正在淡化。
  5. A channel estimator for multi - carrier system in fast time - varying fading channels

    一種快時變通道下多載波傳輸系統的通道估計方法
  6. A lateen - rigged sailboat called a felucca plies the nile river in fading light near aswan, egypt

    意譯：主標題：帆船航行在尼羅河，阿斯旺，埃及， 1998年。
  7. Therefore, during system design, cascade coding combining reed - solomon codes and convolutional codes is utilized ; in addition, time - direction and frequency - direction interleaves are added to alleviate channel fading

    因此在進行系統設計時，採用了rs碼與卷積碼的級聯編碼方案，並同時加入時間交織和頻率交織來對抗通道衰落。
  8. Der rosenkavalier is a sweet tale of young love set against a background of fading beauty in the exquisite drawing rooms of 18th century vienna

    該劇是講述充滿暮色的18世紀維也納顯貴大廳內的一段青年愛侶的浪漫愛情故事。
  9. A fading woman in her 40s, larisa had both drinking and marital problems.

    拉麗莎40幾歲，徐娘半老，既愛喝酒，婚姻也不如意。
  10. The theoretic formulas imply that mimo system can make use of multipath fading in full of scatter enviorment and its channel capcacity is in proportion to the transmt or receive antenna. 2. paper mainly explains the basic principle of bell laboratory layered space - time ( blast ) architecture

    2 .論文重點闡述了實現mimo系統中空間復用技術的貝爾實驗室空時分層（ blast ）結構的基本原理， blast結構作為實現mimo系統巨大容量的一種有效的手段，其核心是基於排序的串列干擾消除（ osic : orderingsic ）檢測演算法。
  11. And the most advantage of ofdm is that it can convert high - rate data stream into the low - rate and reduce data bandwidth so that multi - path - fading can be transformed into flat fading in wireless circumstance

    這種調制技術的最大的好處就是將高速的數據流，變換成并行的低速數據流，減小了數據帶寬，從而可將無線環境中的多徑衰落（頻率選擇性率落）轉換成平坦衰落。
  12. Polarization diversity and maximum ratio combining ( mrc ) is used to restrain the sharp signal fading in the telemetry systems, in which the object is in flight at a high speed and rotating and in low elevation

    在信號極化衰弱現象嚴重的環境中對快速飛行目標、低仰角運動目標以及旋轉運動目標等進行遙測接收時，極化分集最大比合成技術可以有效的改善接收性能。
  13. They seemed to come from far away, fading in and out, and she wondered if she was losing her mind.

    它們象是從很遠的地方傳來的，時隱時現，她不知道她是否正在發瘋。
  14. In ofdm tech, multicarrier transmission with fft is used to combat with channel fading. in vsb tech, an adaptive equalizer is used to combat with channel fading

    在ofdm技術中，以多載波傳輸結合fft技術來對付通道衰落，在vsb技術中以自適應均衡器來對抗通道衰落。
  15. Aim at partly sub - carrier has deeply fading in mc - cdma communication, proposed sub - carrier selection way, abandom the sub - carriers in deeply fading, select the sub - carrier have well performance to communication

    針對多載波cdma通信的部分子載波存在深度衰落的情況，提齣子載波選擇的通信方法，拋棄處于深度衰落的子載波，選擇較好的子載波來進行信息傳輸。
  16. Fading in brightness - science amp; technology and females in the cultural context of male domination

    男權文化語境中的科學技術與女性
  17. This novel transmit diversity technique, which combines channel coding, modulation and signal processing at receive terminal, can make full use of the fading multi - path in the wireless communication systems so as to mitigate the signal attenuation. this technique is mainly designed to combat channel fading in downlink transmission by combining the technique of channel coding and that of array diversity, hence increasing the capacity of wireless communications systems and giving diversity gain and coding gain to them

    基於多輸入輸出（ mimo ）的空時編碼技術是實現未來帶寬資源日益緊張的高速無線數據通信系統的重要技術，它結合了通道編碼、調制和接收端的信號處理，能夠充分利用無線通信通道中多散射體環境所造成的多徑，從而提供信號的抗衰落性能。
  18. Because of the affection of noise and signal fading, in order to high data rate access and high quality, wireless communication need new technology to improve the link reliability and enhance the spectrum efficiency. mimo ( multiple input and multiple output ) can enhance the spectrum efficiency and increase channel capacity greatly, and reduce the multipath affection without spectrum band and power increasing. the 3th generation mobile communication wcdma is coming, with the purpose of putting mimo, stbc ( space time block coding ), space diversity into practice of wcdma systems, in order to lay the foundation of 3g toward 4g, this dissertation has done some research under this background

    在發射機和接收機使用多個天線進行數據傳輸的多輸入多輸出（ mimo ）技術，可以在不增加帶寬和天線發送功率的條件下，成倍的提高頻譜利用率，提高系統的通道容量，還可以抗多徑干擾。第三代移動通信wcdma即將到來，為了將多天線技術（ mimo ） ，空間分集技術，空時編碼技術用到wcdma系統中去，為第三代移動通信向第四代移動通信系統平穩過渡奠定一定的基礎，需要做一些理論上的研究。
  19. New telescopes and techniques have found other exoplanets directly, by sensing a slight fading in the luminosity of the star as the planet crosses its face

    新型天文望遠鏡和技術幫助人類用直接的手段發現了其他的外星行星，方法就是通過測量行星穿過恆星表面時恆星亮度的細微變暗的程度。
  20. Among the effective methods to mitigate the fading in wireless communications is transmit diversity, which can utilize the space diversity of transmit antennae to generate the receive diversity and improve the performance of the forward link

    發送分集技術是對抗無線通道衰落的重要手段，它能將發送天線的空間分集轉化為接收機可以利用的分集方式，以改善前向鏈路的性能。
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