delay spread

基本解釋

• 延遲擴(kuò)展

英漢例句

雙語例句

• When the data rate is high, there is ISI because the signal duration is shorter than the channel delay spread.
  在較高的信號(hào)傳輸速率下，傳輸符號(hào)的符號(hào)周期小於信道的時(shí)延擴(kuò)展，從而産生ISI。
• If the length of its cyclic prefix is larger than the delay spread of transmission channel, we can get a simple frequency equalizer to demodulate OFDM signal.
  對於傳統(tǒng)的OFDM系統(tǒng)來說，如果循環(huán)前綴的長度大於信道的時(shí)延擴(kuò)散值，則可以通過簡單的頻域均衡來解調(diào)OFDM信號(hào)。
• This paper studies the application of minimum description length (MDL) criterion for estimating root-mean-squared (RMS) delay spread (RDS) for MIMO OFDM systems.
  研究了MIMO OFDM系統(tǒng)中最小描述長度（MDL）準(zhǔn)則在均方根時(shí)延擴(kuò)展估計(jì)中的應(yīng)用。

權(quán)威例句

• Clinton said that every year of delay in ratifying the treaty increases the probability that nuclear weapons will spread to regions with intense national rivalries and to rogue leaders and perhaps even to terrorists.
  CENTERFORSECURITYPOLICY: Center for Security Policy Politics and the Test Ban Treaty, By George F. Will, Newsweek, 20 October 1999

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詞組短語

短語

• group delay spread 群時(shí)延展寬
• multipath delay spread 多逕時(shí)延展寬
• RMS delay spread 均方根時(shí)延擴(kuò)展;時(shí)延
• simulcast delay spread 同播延遲擴(kuò)展
• RMS time delay spread RMS 時(shí)延擴(kuò)展

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專業(yè)釋義

電子、通信與自動(dòng)控制技術(shù)

• 時(shí)延擴(kuò)展

  Simulation results show that the proposed method is not sensitive to Doppler shift and multi-path delay spread.
  倣真結(jié)果表明,該方法對多普勒頻移和信道時(shí)延擴(kuò)展均不敏感。

• 延遲擴(kuò)散