pulse propagation time 中文意思是什麼

pulse propagation time 解釋
脈沖傳播時間
  • pulse : n 1 脈搏；有節奏的跳動；【動物；動物學】脈沖（波）；脈動。2 意向；傾向。3 【音樂】拍子，律動。vi ...
  • propagation : 持續培養
  • time : n 1 時，時間，時日，歲月。2 時候，時刻；期間；時節，季節；〈常pl 〉時期，年代，時代； 〈the time ...
  1. The saturation time in our simulation is consistent with the prediction of the theory. furthermore, we also studied the propagation of two pulses with inverse phase. in this case, the wakefield excited by the first pulse will be absorbed by the second pulse which shifts to higher frequency

    此外，我們還研究「位相相反」的兩個脈沖在稀薄等離子體中的傳播，第二個激光脈沖由於吸收了前一脈沖激發的靜電場，頻率向高頻方向漂移，得到頻移的大小與符合理論推測。
  2. A pulse hard source has been adjusted to allow the reflection wave pass by the source without retroreflection. and the calculation area is changeable at the different time step, so only those area with wave propagation have been calculated. as the results, the total calculation time can be reduced

    還有計算區域隨時間改變的方法，利用fdtd計算空間點的鄰近性，在不同的時間步上計算不同大小的區域，使得只有波傳播到的區域被計算，這樣可以縮短計算時間。
  3. In this paper, first, the study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants are studied. then, the behavior of propagation of am signal and gauss pulse signal through the waveguide are simulated by magic code ， and the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position are obtained. and, the group velocity and energy velocity of wave packet through barrier are calculated

    從90年代開始， emig和martin 、 landauer等人研究了分段填充不同介質的波導中的電磁脈沖的傳播。在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式，然後，採用magic程序模擬了這種波導結構中電磁波的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖，並由模擬結果計算了波包穿越勢壘的群速和能量速度。
  4. In this paper, first, 1 made a study of the distribution of electromagnetic field, energy, power, reflection coefficient and transmission coefficient in waveguide with piecewise different dielectric constants. then, i simulated the behavior of propagation of am signal and gauss pulse signal through the waveguide by magic code, and gave the plots of electromagnetic field, energy, ponyting vector and their spectrums at different time and different position

    在本論文中，作者首先推導出分段填充不同介質的波導中的電磁場分佈、能量、傳輸功率以及反射系數和傳輸系數的表達式。然後，採用magic程序模擬了這種結構的波導中的電磁場的傳播情況，得到了在不同時刻和不同位置處的電磁場分布圖、能量圖、坡印廷矢量圖以及它們的頻譜圖。
  5. To solve this problem, quick range measurement technology was researched based on the method of propagation delay and working principle of cpld. a time measurement circuit with an accuracy of ? 0. 2m was designed and accomplished. it could finish the whole measurement process in 80ns after the bounced pulse was received

    針對該問題，基於傳遞延時插入法和cpld的工作原理，對快速測距技術進行了研究，研製了一種能實現收到回波脈沖后80ns內完成測距，測距精度0 . 2m的計時電路，並將該電路集成於一片可編程邏輯器件中，減小了電路面積和功耗，增強了抗干擾能力。
  6. Summing up time harmonic propagated waves of all frequency gives the pulse propagation along the line

    加總所有頻率成份弦波之時域傳播即得時域脈波之傳播。
  7. If the time harmonic source is assumed to be constant voltage, the summed pulse propagation is the impulse response along the line

    若各頻率成份之電源為定電壓，則所得時域脈波即脈沖電壓源在傳輸線上之脈沖響應。
  8. In this work, after giving the selective method of the time window width and the minimum time window width required for corrected calculations of optical pulse propagation in fibers, the shapes of various incident pulses after passing through different fiber lengths have been simulated by selecting different time window widths

    在此基礎上，對不同的光脈沖在光纖中的傳輸進行了數值模擬，發現前人得出的超高斯光脈沖在光纖中傳輸會由於色散而產生脈沖形狀扭曲這一結論是錯誤的，並指出了錯誤的原因所在。
  9. Active underwater acoustic positioning / tracking systems locate target by measuring the range from object to receiving sensors. usually the target - receiver range can be got by the propagating time of a signal pulse. if this propagating time is larger than the pulse repetition period, it will mean that more than one signal pulse are on propagation

    主動水聲跟蹤定位系統通過測量脈沖信號的傳播時延可以測得目標相對接收機的距離，當此傳播時延大於系統同步周期時，時延測量就會呈現不確定性，可能相差若干個重復周期，導致定位解多值，稱之距離模糊現象。
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