ici 中文意思是什麼

ici 解釋
ICI = Imperial Chemical Industries 〈英國〉帝國化學工業公司。

  1. A frequency domain ici mathematic model for ofdm systems

    載波間干擾的頻域數學模型
  2. On vend ici des articles depuis cent francs

    這兒出售從一百法郎起價的貨品。
  3. Cliquez ici pour des minutes gratuites

    點擊這里來獲得免費時間
  4. Nouveaux utilisateurs, cliquez ici pour crer un compte gratuit

    新用戶,點擊這里來創建一個免費帳號
  5. Internation commission on illumination ici

    國際照明委員會
  6. Ici and the image design of the library of center for southeast asian studies

    與東南亞研究中心圖書館的形象設計
  7. High - class ici computerized paint and anti - rust treatment color selectable

    選用高級ici電腦調漆防銹處理顏色自選。
  8. As it moved upmarket, ici became progressively less imperial, less chemical and less industrial

    卜內門化學工業有限公司進入高端市場后,逐漸削弱了集團化,化學製品和工業化。
  9. Typical research institutions in this field are corelab of usa, ife of norway and ici tracerco of british, etc

    主要的研究機構有:美國的corelab ,挪威的ife和英國的icitracerco等。
  10. Among them, there are listed companies and large - scale multinational corporations such as dupont, ici and sinopec

    其中不乏有杜邦集團、 ici集團、中石化這樣大型的跨國公司和上市公司。
  11. Paint spraying the company introduces ici advanced stoving varnish that has high luster, wearability and antiaging, matching with 2 italian original baking rooms

    公司引進英國ici高極烤漆具有很高的光澤性、耐磨性和抗老化性,匹配2間義大利原裝進口烤漆房,使噴漆車間的硬體設施無與倫比。
  12. For example, carrier frequency offsets, which are caused by the inherent instabilities of the transmitter and receiver carrier frequency oscillators, can lead to severe system degradation due to inter - carrier interference ( ici ). symbol timing synchronization must also be achieved in order to avoid inter - symbol interference ( isi )

    其載波頻率誤差會引入子通道之間的干擾( ici ) ,而幀同步的誤差會引入符號間干擾( isi ) ,同時還會對通道估計帶來嚴重的影響。
  13. The company introduces the complete set of british ici computerized paint mixing equipment that can rapidly and accurately mix special purpose paint for car. 3

    公司引進英國全套ici電腦調漆設備,色卡齊全,色種繁多,能迅速準確地調制出各類汽車專用漆。
  14. The application of mc - cdma enables one to avoid isi and ici in the detection process, resulting in advantages of frequency diversity

    由於在給定條件下,信號的峰平比是功放體積的決定性因素。
  15. This thesis is based on the theory of the unexpected release of energy in safety system engineering and applies the relevant principle in risk assessment. three kinds of methods, such as dow fire & explosion index, ici / mond index, grey clustering procedure and three mathematical models, such as bleve accidental model, vce accidental model, the model of leakage & diffusion of posionous gases are applied to the risk asssessment of lpg terminal

    本文以安全系統工程中的能量意外釋放理論為理論基礎,根據安全評價的相關原理,綜合運用三種方法:道氏火災爆炸指數法、 ici mond法、灰色聚類法以及三個模型: bleve事故傷害模型、 vce事故傷害模型、有毒氣體泄漏擴散模型,對液化石油氣碼頭的儲運進行了風險綜合評價。
  16. To overcome the affection of ici and awgn on the ls estimate of the transfer function at pilot tones, the proposed bispectrum - based channel estimation algorithm employ the suppression of ici and awgn components in the received pilot signals by bispectrum and then the accuracy of the estimation is improved. with the channel estimation at pilot tones, an efficient interpolation is necessary. an improved interpolation method based on transform - domain filtering is proposed, which employs dft / idft and filtering in a transform domain so that the effect of noise on the equalization is significantly reduced

    針對導頻處通道傳遞函數的ls估計中存在載波間干擾和加性高斯白噪聲的影響的這一問題,本文將傳統的ls估計方法與雙譜相結合提出了一種新型的基於導頻雙譜通道估計演算法,它利用了雙譜對高斯噪聲的抑制作用來減小接收到的導頻信號中的載波間干擾和加性高斯白噪聲的影響,從而提高了導頻子載波上通道估計的精度。
  17. In the end, this paper considered detecting the desired user signal for uplink ds / cdma system. in that case, we need to suppress both mai and inter - chip interference ( ici ) caused by multipath propagation

    最後,本文研究了在ds cdma的上行通道中,同時存在多用戶干擾和多徑傳播引起的碼間干擾的情況下,對期望用戶信號的檢測。
  18. A group of orthogonal frequency carriers are used in ofdm system to improve the using rate of spectrum. if the orthogonal character can be held and ignore the inter - channel interference ( ici ), the symbol error character of ofdm depend on the modulate of source codes. this dissertation propose the theoretic formula of ofdm - qam and ofdm - psk in this precondition

    為了提高頻譜利用率, ofdm系統使用了一組正交的子載波來傳輸信號,若能保證各子載波間的正交性不被破壞、不考慮通道間干擾( ici ) ,則ofdm系統的誤碼性能由信元調制方案的誤碼性能決定,文中推導了該情況下ofdm - qam和ofdm - psk的理論誤碼率公式。
  19. Firstly, in wireless environment, receiver has no know the time delay between transmitter and itself. in ofdm system, ofdm data is transmitted as one symbol, so in order for correct demodulation, the correct start of symbol should be got from ofdm system to reduce the effect of isi. secondly, the high frequency utilization in ofdm is based on the orthogonal properties of sub carriers. if frequency offset is generated, the orthogonal properties among sub carriers will lost, that will cause inter carrier interference ( ici ) and high ber of system

    Ofdm技術也存在著一些缺陷,首先,在無線環境中傳輸的ofdm信號對定時要求高,為了減少碼間串擾( isi )影響,必須從接收信號中提取出正確的符號起始位;其次, ofdm系統對頻率偏移敏感, ofdm技術的高頻譜利用率和傳輸可靠性均以子載波的正交性為基礎,如果接收機和發射機之間發生頻率偏移,子載波之間就會失去正交性,導致嚴重的子載波間干擾( ici ) ,降低系統性能。
分享友人