power spectrum density

基本解釋

• 功率譜密度

英漢例句

雙語(yǔ)例句

• We can get frequency response, power spectrum density(PSD), modal coordinates, etc. by modal analysis module of ADAMS.
  利用ADAMS做模態(tài)分析，可以求得頻率響應(yīng)、 功率譜密度（PSD）、模態(tài)坐標(biāo)等信息。
• The program for rail irregularity analysis processes the track irregularity data measured by track inspection car to obtain the distribution function of power spectrum density(PSD).
  軌道不平順?lè)治龀绦驅(qū)墮z車(chē)測(cè)得的軌道不平順數(shù)據(jù)進(jìn)行處理，得到功率譜密度分布函數(shù)。
• The track spectra of Qinhuandao-Shenyang(QS) passenger railway line and German railways were compared in terms of power spectrum density(PSD), amplitude of time domain samples and dynamic performance.
  從軌道譜的功率譜密度、時(shí)間樣本幅值及對(duì)動(dòng)力學(xué)性能影響的角度，對(duì)比了秦沈線(xiàn)軌道譜和德國(guó)軌道譜。

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詞組短語(yǔ)

短語(yǔ)

• static power spectrum density 靜態(tài)功率譜
• Power Spectrum Density MASK 功率譜密度模板
• noise power spectrum density 噪聲功率譜密度
• Power Spectrum Density Function 功率譜密度函數(shù)
• power spectrum density chart 功率譜密度圖

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專(zhuān)業(yè)釋義

電子、通信與自動(dòng)控制技術(shù)

• 功率譜密度

  The conventional detection and estimation methods has to achieve 6dB or higher SNR to demodulate the DSSS signals, which have low PSD（Power spectrum density） and are always submerged in noise.
  常規(guī)的偵察手段至少需要有6dB以上的信噪比,才能將淹沒(méi)在噪聲里且功率譜密度很低的直接序列擴(kuò)頻信號(hào)提取出來(lái)。

  生物學(xué)

• 能量譜密度

  Aiming at the common problems about the incline of biochip image, the automatic image rotation correction is realized by analyzing the power spectrum density of image projection.
  針對(duì)生物芯片掃描圖象普遍存在的傾斜問(wèn)題，利用圖象投影的能量譜密度，實(shí)現(xiàn)對(duì)傾斜圖象的自動(dòng)校正。

  物理學(xué)

• 能譜密度