baseband spectrum 中文意思是什麼

baseband spectrum 解釋
基帶譜
  • baseband : 基本頻帶
  • spectrum : n. （pl. -tra ）1. 【物理學】譜，光譜；波譜；能譜，質譜。2. 【無線電】射頻頻譜；無線電（信號）頻譜。3. 【心理學】（眼睛的）余像；殘像。4. 〈轉義〉范圍，幅度；（連續的）系列。
  1. We build the baseband model of the ar self - encoded spread spectrum system both for a user and multi - user, and do a lot of simulation for the system. in addition, we discuss the performance deeply based on the simulation

    本文建立了單用戶及多用戶的ar自編碼擴頻系統的基帶模型，並在模擬結果的基礎上，對該系統的性能進行了更深入的討論。
  2. As the spread spectrum and despread of digitalization are handled on the digital baseband, it is very important to convert medium frequency signal in analogue to digital baseband signal, and the downconverter functions to convert analogue medium frequency to analogue baseband signal, and to digital baseband signal through a / d transformation and decimation filter

    所以把模擬的中頻信號變為數字基帶信號的下變頻器就顯得非常重要。在這里下變頻器的作用是將由前一級接收而來的模擬中頻信號變為模擬的基帶信號，再經過a / d轉換和抽取濾波成為數字的基帶信號。
  3. Experiments show that a relatively good recognition performance could be achieved by combing such features as 1 ) the baseband and coefficients of inverse spectrum obtained using lpc analysis, 2 ) the difference - value of basis frequencies and coefficients of the difference - value of the inverse spectrum, which worked as the linear regressive coefficients

    採用lpc分析得到的倒譜系數和基頻與作為一階回歸系數的差值倒譜系數和差值基頻等參量組合應用可得到較好的識別效果。
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