被調載波 的英文怎麼說

中文拼音 [bèidiàozǎibō]
被調載波 英文
modulated carrier
  • 被 : Ⅰ名詞1 （被子） quilt 2 （姓氏） a surname Ⅱ動詞[書面語]1 （復蓋） cover; spread 2 （遭受） suffe...
  • 調 : Ⅰ動詞1 （配合得均勻合適） harmonize; suit well; fit in perfectly 2 （使配合得均勻合適） mix; adju...
  • 載 : 載Ⅰ名詞（年） year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 載波 : signal carrier; carrier wave; carrier: 3路載波 three channel carrier載波傳輸 carrier transmission...
  1. The content of this theme is as follows : without time, without open, without stopping railway transport, and without interrupting traction current of block tested, meanwhile track circuit parameters in electrical and no electrical blocks is measured of on - line, dynamic and real - time. these parameters include voltage of fsk signal, voltage of industrial and harmonic wave interference, upper frequency, lower frequency, carrier frequency and low frequency 18 messages frequency

    本課題研究內容：在不要點，不開天窗，不中斷行車，不中斷被測區段牽引電流的情況下，在線、動態、實時測量電化區段和非電化區段的移頻信號電壓、工頻干擾電壓，移頻信號（調頻信號）的上邊頻、下邊頻、載波頻率、以及低頻18信息頻率等參數。
  2. Ofdm ( orthogonal frequency division multiplexing ) is a multi - carrier data modulation technology. though the conception of ofdm was brought forward many years ago, it is only in recent years that people recognize it as an excellent way of high speed, bidirectional, wireless data communication

    正交頻分復用（ ofdm ）技術是一種多載波數據調制技術，雖然ofdm的概念已經存在了很長時間，但是直到最近隨著多媒體業務的發展，它才被人們認識到是一種高速雙向無線數據通信的良好方法。
  3. 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。
  4. A special address codeword produced by optical encoder at the side of transmission and data information are modulated on optical carrier and transferred. the data from different users are transmitted through optical fiber. the information belonging to local user is demodulated by the special optical decoder while optical signals carrying other users ’ information are filtered as noise

    在發送端特定的光編碼器產生某一特定的地址碼，將數據信息與此地址碼調制在光載波之上發送出去，不同用戶的數據都在光纖媒質中傳輸，接收端用特定的光解碼器解出屬于自己的信息，而攜帶其他用戶信息的光信號，就像噪聲一樣被過濾掉。
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