spread spectrum

基本解释

• [電子] 擴展頻譜

英汉例句

雙語例句

• Moreover, many modern radio devices (such as mobile phones) rely on a technique called “spread spectrum” encoding.
  而且，現在（使用的）無線電通訊裝置（比如手機）所依賴的主要是一種叫做“擴展頻譜”的通訊編碼方式。
• It mainly contains the digital modulate system, the SS communication theory and the direct sequence spread spectrum (DSSS) system.
  主要是數字調制系統、擴展頻譜通信原理和直接序列擴頻系統等內容。
• Also, 802.11 maintained compatibility with the three most popular radio transmission types: direct sequence spread spectrum, frequency-hopping spread spectrum, and infrared.
  11也保持了與三種最流行的無線電傳輸方式（直接順序擴頻、跳頻擴頻和紅外線）的兼容性。

權威例句

• Main.net uses a related technology called direct sequence spread spectrum, or DSSS, to send its signals down the power line.
  FORBES: Technology
• As you have said, in 1940 Hedy Lamar (Obituary, January 29th) and a film-score composer, George Antheil, developed the technology, then called spread spectrum.
  ECONOMIST: Letters The

• spread spectrum更多例句

词组短语

短語

• spread -spectrum system 擴頻通信系統
• Spread -Spectrum Transponder 擴頻應答機
• spread clutter spectrum 擴展譜襍波
• Spread sequence spectrum system 擴頻躰制

• spread spectrum更多词组

专业释义

電子、通信與自動控制技術

• 擴頻

  Spread spectrum technology made it possible for greater spectrum sharing.
  擴頻技術爲共享頻譜提供了可能。

• 擴譜

  Spread spectrum communication systems often suffer strong narrowband interferences resulted from various factors.
  在擴譜通信系統中,常常因爲各種原因而遭遇較強的窄帶乾擾。

• 展頻
• 擴展頻譜
• 擴散頻譜

計算機科學技術

• 擴頻

  Spread spectrum technology is used to improve the security of watermark sequences.
  採用擴頻技術提高水印序列的安全性。

• 擴展頻譜

  A steganalysis algorithm that estimates the secret key used in sequential steganography of spread spectrum embedding is proposed.
  論文提出了一種針對圖像擴展頻譜序列隱寫的密鈅估計算法。

• 擴譜
• 展頻
• 展開頻譜