起伏噪聲 的英文怎麼說

中文拼音 [qǐfúzàoshēng]
起伏噪聲 英文
fluctuation noise
  • 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
  • 伏 : Ⅰ動詞1 （身體向前靠在物體上; 趴） bend over; lie prostrate 2 （低下去） subside; go down 3 （隱藏...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 起伏 : rise and fall; ups and downs; heave rolling; undulate; fluctuate
  1. 3. the fully inseparable bright tripartite entangled state ( tes ) was experimentally generated using the nopa at deamplification and the linear optical system consisting of polarization beam splitters and half wave plates

    實驗測定的這兩個起伏方差分龍要別較散粒噪聲極限降低3 . 28dbm和3 . 18dbm 。
  2. In electronic detectors such as photomultipliers and television tubes, noise manifests itself as random fluctuations in the output current.

    對于光電倍增管，電視攝像管之類的電子探測器，噪聲則表現為輸出電流的隨機起伏。
  3. Additional noise contributions are due to the statistical fluctuations of the processes in the valves and transistors.

    其他噪聲的產生來自電子管和晶體管中電過程的統計起伏。
  4. Tree pruning can descend the existent noise of training set

    剪枝的目的是降低由於訓練集存在噪聲而產生的起伏。
  5. The reasons focusing only on ray travel times are " noise tolerance could be enhanced and the sensitivity to the environment model mismatch may be reduced by neglecting amplitude information ; phase ambiguity is eliminated by employing the group delay of arriving wave packets ; travel times are pseudo - linear functions of sound speed profiles of the medium, and the perturbation of ray travel time is much smaller than sound pressure ' s

    之所以選擇聲傳播時間的原因是：噪聲容限可以得到提高，並且傳播時間的計算可以不考慮聲壓的信息，從而降低了對環境模型失配的敏感性；相位的起伏也可通過到達包絡的群延時來消除；傳播時間是介質聲速分佈的偽線性函數並且傳播時間的起伏遠小於聲壓的起伏。
  6. Background photon fluctuations

    背景光子起伏噪聲
  7. By using these principles, the formulae of estimated spatial signal are derived. the physical meaning and the geometric interpretation of these principles are given. the performances of estimated signal are analyzed when the phase of expected signal and the amplitude of noise are fluctuant

    提出了三元陣及多元陣的信號相位匹配原理，推導了利用信號相位匹配原理的空間信號估計公式，給出了信號相位匹配原理的物理意義及幾何解釋，分析了信號相位和噪聲幅度起伏對信號估計性能的影響。
  8. To simulate return accurately, we set several models as follows : target radar cross section ( rcs ) model, target antenna modulating model, target wave modulating model, noise model, clutter amplitude distributed model and power spectrum distributed model. each of these models has been analyzed and simulated

    分別建立了目標截面積起伏模型、目標天線方向圖調制模型、目標波形調制模型、噪聲模型、雜波幅度分佈和功率譜分佈模型，對每種模型的建立進行了分析和模擬。
  9. The air inlet noise is one of the major aerodynamic noises of the diesel generator as a result of the pressure fluctuation caused by the periodic opening and closing of the inlet valve

    進氣噪聲是柴油機的主要空氣動力噪聲之一，它是由進氣門的周期性開啟與閉合而產生的壓力起伏變化而形成的。
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