波相速度 的英文怎麼說

中文拼音 [xiāng]
波相速度 英文
phase velocity of wave
  • : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. (快慢的程度) speed; rate; pace; tempo
  1. In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits

    論文首次提出並研究了加模糊函數和加分辨力的有關概念,並以加模糊函數為分析工具,詳細討論了加對線性位匹配濾器的輸出信噪比的損失程、對多卜勒頻率分辨能力的影響程、對最優參積累時間的約束關系以及線性位匹配濾器輸出受加影響的容限等問題。
  2. Superficially it is quite safe to phase advance an accelerometer signal as the error signal has been filtered by the servo and the alrframe transfer function.

    從表面上看,因為誤差信號已被伺服機構和彈體傳遞函數濾,所以讓加計信號經位超前網路是不會有問題的。
  3. Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used

    通過對差頻信號進行的分析,得出了差頻位的具體表達式,表現出了要檢測的各量的物理意義,對檢測的方法提供了理論依據。利用二維fft方法,可以有效地提取回中目標的距離與信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題,採取時間門的處理方法。
  4. And the explicit finite difference method, the combining method of the central difference method and newmark s constant average acceleration method, and the transmitting boundary are used. by comparing the acceleration determined by the several methods of the displacements or velocities, a computing method of acceleration employed the one side difference of velocity is more practicality in this research. corresponding to normal incidence of the body waves, p waves or svwaves, and rayleigh surface waves, two two - dimensional finite difference programs are compiled to compu te the dynamic response of two - phase media

    以土力學模型為基礎,利用以土骨架和孔隙流體的四個位移為基本未知量的數值方法去模擬二維飽水介質中的地震傳播,採用了顯式差分方法(中心差分法和newmark常平均加法結合)和透射邊界,通過比較利用幾種差分格式求解的加結果,發現一種用單邊差分求解加的方法在本文研究中較為實用,分別編制了體( p或sv) 、 rayleigh面輸入時求解兩介質動力響應的兩個二維數值分析程序。
  5. The remaining factor in(7, 8. 3)is the carrier wave and its phase velocity is c.

    (7,8.3)中剩下來的一個因子就是載,其是C。
  6. By adding definite chirality reagent the lcd reflection wavelength is changed and the voltage is increased. by adding a bit of active reagent such as polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, glyceryl momostearate and so on, the lcd response velocity is remarkably improved. the lcd response velocity is increased about 200 times

    通過加入一定量的手性劑改變了液晶顯示器反射長、提高了變電壓等性質;分別加入少量活性劑吐溫80 、吐溫85 、單硬脂酸甘油酯顯著提高了液晶顯示器的響應,其響應提高了200倍左右。
  7. ( 4 ) the correlation property between the distribution of attenuation factor and that of the group velocity is indicated, in this study

    ( 4 )研究結果顯示,在頻率域內,面衰減系數分佈與群分佈具有一定的關性。
  8. Based on the model of safe following distance, the design blue print of system is presented in the text. using the multiple impulses horae rotate speed sensor to measure the vehicle speed and nanometer radar to measure the distance of own vehicle to frontal vehicle, and analyzing and judging collected information by at89c51 which is the control centre of the system

    本文在安全跟車模型的基礎上,提出了系統方案:採用霍爾多脈沖轉傳感器測量汽車的,毫米雷達測量兩車的距離和,利用at89c51作為信息採集單元的控制中心,對各種信息進行分析判斷,當行車距離小於報警距離時啟動關的報警單元。
  9. A new learning algorithm of the continue wavelet networks parameters is proposed, that is, hybrid parameters learning algorithm. the parameters of wavelet networks are divided into two parts, and different methods are used to training them. compare to the traditional parameters learning method, the new method proposed in this paper has the advantages of rapid convergence speed and high approximation capability

    提出了連續小網路的混和參數訓練方法,將小網路參數分為小系數和網路權值兩部分,對這兩部分參數分別採用不同的方法進行訓練,這一新的訓練方法對于傳統的小網路參數訓練方法來說具有收斂快,逼近精高等優點。
  10. Each small peak in the carrier would travel to the right with the usual phase velocity.

    中的每個小峰都以通常的同向右方運動。
  11. Wave phase velocity

    波相速度
  12. The phase velocity basically tells you how fast a pure sine wave ( with a single frequency ) moves

    可以告訴我們一個純正弦的傳播
  13. Directed by wave theory of fractured media, the elastic parameters of eda medium are determined in the light of hudson - fractured theory, and christoffel equation gives the formula of the phase velocity of p - wave by which, effects of velocity on behalf of kinetic characteristic and reflection coefficient on behalf of dynamical characteristic form fractured density and azimuty is discussed

    本文以裂隙介質的動理論作指導,根據hudson裂隙理論,求出eda介質的彈性參數。在此基礎上,應用christoffel方程求出的地震縱波相速度表達式,探討了裂縫密和裂隙方位對代表場運動學特徵的縱和代表場動力學特徵的反射系數的影響。
  14. We found the " forward stimulated raman scattering " will be excited if the pulse length is greater than plasma wave length. the " forward stimulation raman scattering " decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped

    結論是:當脈沖長接近等離子體長時,稀薄等離子體將發生「前向受激raman散射」 ,它使脈沖后沿拉長,導致尾流場的變小,以至於被尾流場「捕獲」的電子最大動能大大下降。
  15. Because of the resonant interaction between the reb electrons and the wave excitated by the embp instability, the reb electrons cannot transport continuously, but in form of current clumps. the transport velocity is close to the phase velocity of the wave

    因為embp不穩定性所激發的和束流電子之間的共振互作用,束流電子不是連續地傳播,而是以電流團的形式傳播,傳國防科技大學研究生院學位論文播接近於
  16. The paper introduces the principle of transient rayleigh wave exploration and the calculating process of f - k region analysis, according to experimental data analyzes the influences of the parameters on the calculation of phase speed of rayleigh wave and the various factors affecting transient state rayleigh wave exploration, at last, gives some advices on how to choose the best sampling rate, group interval, offset, vibrating source and receiver

    介紹了瑞雷勘探的原理和f - k域分析法的計算過程,分析了各參數對瑞雷波相速度計算的影響,通過實驗數據分析了影響瑞雷勘探的主要因素,就如何選擇最佳采樣率、道間距、偏移距、震源以及檢器等提出了幾點建議。
  17. Secondly, wavelet transform is applied to compute the arrival time of the lamb wave group velocity experiments results demonstrate that wavelet transform can improve the precision of damage localization

    其次,本文採用小分析方法提取lamb的到達時間,獲得了比閾值法及互關方法更高的精
  18. Comparison of dispersive curve of love wave propagating in horizontally elastic soil layers

    波相速度頻散曲線計算的比較
  19. The features of phase and group velocity were advanced by means of preparing samples with different shaping. the phenomenon of " cusp " in group surface of quasi - shear wave ( qsv ) was observed. the inversed velocity surface according to calculated elastic constants in real orthotropic media is consistent with practical measured velocity surface

    用加工不同樣品形態的方法給出了正交各向異性介質的和群特徵,觀測到各向異性介質群面上的尖點現象,並用測試得到的正交介質的彈性常數進行了數學模擬,其場特徵與測試的面特徵符。
  20. In this study, the effect of rotating elliptical inner cylinder on the instability of flow field, the relationship between azimuthal wave speed and the angular speed of inner cylinder, and the so - called ' hysteresis ' will also be investigated experimentally

    本文主要目的除了藉由實驗比較橢圓與圓形截面內柱兩種系統加過程中不穩定發生時機、流場流況的差異外;對于所謂的遲滯現象于兩系統中的發生過程亦將探討,此外內柱幾何形狀所造成高階不穩定於圓周方向的變化,也是本文的探討重點。
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