頻譜能量密度 的英文怎麼說

中文拼音 [bīnnéngliáng]
頻譜能量密度 英文
spectral energy density
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : Ⅰ名詞[書面語]1 (按類別或系統編成的書或冊子等) table; chart; register 2 (指導練習的格式或圖形)...
  • : 能名詞(姓氏) a surname
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 頻譜 : frequency spectrum; frequency content; spectrum; power density spectrum; power spectrum; [系統] s...
  • 能量 : 1 [物理學] energy; amount of energy 2 (能力) capabilities; capacity; 能量不滅 conservation of e...
  1. In order to avoid spectrum error due to energy leakage, the thesis research on identification of parameters of two close frequency components in discrete spectrum analysis, and simulation result shows the validity of the method

    針對由於泄漏造成的誤差,深入研究了域參數識別法,從理論上加以推導,並通過模擬證明了該方法的有效性,可以識別1個率解析以內的兩臨近率分
  2. Abstract : by using the pulse - sequence model , the inverse problem of amplification of broad - spectral - bandwidth laser pulse has been studied , i. e. , to find the initial input temporal pulse profile , spatial profile , spectral distribution and fluence from the required output temporal , spatial pulse profile , spectral distribution and fluence as well as the given amplifier parameters

    文摘:採用脈沖分割模型,研究了寬帶激光脈沖放大的逆問題,即由所要求的輸出激光脈沖時間、空間波形、光分佈和,並給定放大器參數情況下,求輸入激光脈沖時間波形、空間、光分佈。
  3. Firstly, acoustic waves propagation in id quasi - periodic system is studied by means of the transfer matrix method. the transmission rate, reflection rate, energy flow, logarithmic energy flow, energy density and lyapunov exponent are obtained numerically. we explain all these parameters " relations with frequency and the size of system, and compare these p arameters with those o f periodic system. we find that these parameters are fractal in this quasi - period system

    通過轉移矩陣的方法,數值地得到了系統的傳播系數t _ n 、反射系數r _ n ,j _ n 、e _ n 、李雅諾大指數_ n ,給出了以上各與系統大小n以及率之間的關系,發現這些存在著與周期系統不同的準周期性質,其會出現局域化現象,流以及都具有分形結構,給出了相應的理論解釋。
  4. The accurately controlled signal source generates sinusoidal elastic wave accurately controlled in frequency and stable in phase to " illustrate " underground media. time signal stacker receive signal by stacking and doing fft to measure the transfer function of media. " sompi " cepstrum method retrieve group velocity travel times and decayed factors of wave element from observational data of transfer function in a limited frequency window

    可控震源用於產生率精確相位穩定的正弦彈性波以照射地層內部,信號疊加器通過對接收信號進行疊加和進行傅立葉變換的方式實現對介質傳遞函數的精, 「存否」倒方法夠根據一段窄帶域傳遞函數數據獲得時域上各個波成分的群速傳播時間和介質衰減因子。
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