起伏信號 的英文怎麼說

中文拼音 [qǐfúxìnháo]
起伏信號 英文
fluctuating signal
  • 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...
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 起伏 : rise and fall; ups and downs; heave rolling; undulate; fluctuate
  1. And the text manages to present an emulate arithmetic by using collection and disposal of several stylebooks of power undulate experiment data

    通過對幾個樣本功率起伏實驗數據的採集、處理，力圖找出一種模擬演算法，使得給定任意波束寬度能夠模擬出信號的功率起伏。
  2. We have designed a new type of ijf code to reduce the envelope fluctuation, and have also got the reduced envelope fluctuation ijf - oqpsk. it has faster roll off of the power spectrum and lower energy of band out

    本文設計了一種能夠抑制包絡起伏型的ijf信號碼型，並相應地得到了抑制包絡起伏型的ijf ? oqpsk ，它具有更快的功率譜滾降特性和更好的相位路徑。
  3. To correct these effects, two methods were introduced in this paper : using weighted function to constrain second phase error caused by dispersion, and utilizing pga algorithm to reduce the phase perturbation due to the irregularities of the ionosphere

    本論文介紹了兩種校正方法：利用加權函數抑制色散效應引起的二次相位誤差，以及使用相位梯度自聚焦演算法較正由電離層的不規則性引起的信號相位起伏。
  4. On the following, on the basis of formulas given above, three kinds of effects due to ionosphere are presented : image shift due to group delay which was caused by the difference between the group velocity and the velocity of light in the ionosphere ; image distortion due to ionospheric dispersion which can create second phase error of lfm signals ; the last, the phase perturbation caused by the irregularities of the ionosphere can reduce the coherent length and affect azimuthal resolution

    文中主要研究了電離層的三種影響：信號經過電離層傳播的群延遲引起的成像偏移；電離層的色散效應給線性調頻信號帶來二次相位誤差，導致圖像退化、失真；以及電離層的閃爍、湍流等不規則性引起的信號相位起伏。在此基礎上，比較分析了不同波段、帶寬條件下電離層的影響。
  5. After the event - by - event charged particle ratio fluctuations were proposed by s. jeori, v. kock et al. as a signature of qgp formation, it had evoked extensive interesting theoretically and experimentally

    Kock 、 m人sakawa等人提出荷電粒子比的單事例起伏可以作為qgp形成的特徵信號后，引起了理論和實驗物理學家的） 』 「泛興趣。
  6. Potassium hexatitanate whisker was studied by lateral force microscopy ( lfm ). the contrast of the friction between potassium hexatitanate and the substrate was found. the signal of the potassium hexatitanate surface was almost flat, which showed the friction property of potassium hexatitanate surface is uniform

    利用側向力顯微鏡（ lfm ）對六鈦酸鉀晶須進行研究，發現六鈦酸鉀晶須和基體雲母的摩擦性質差別明顯，而六鈦酸鉀晶須表面摩擦性質比較均勻，信號上的差別主是由於六鈦酸鉀晶須表面的形貌起伏造成的。
  7. The relaxation oscillation in solid - state laser with relaxation oscillation pumping is studied theoretically by the rate equation. the undulation of the laser photon density contains relaxation oscillation frequency itself and that of pumping. when those two frequencies are close, the oscillation will be resonated

    我們用速率方程小信號近似方法對泵浦帶有弛豫振蕩的固體激光器的弛豫振蕩的特性進行了系統的理論研究，發現實際光子數的起伏同時具有自身固有的弛豫振蕩頻率和泵浦光的弛豫振蕩頻率兩種分量。
  8. In this paper the dithering of beam light, the undulating of beam intension, spread of the beam light and the dithering of image are introduced

    摘要文中介紹了激光信號通過隨機大氣通道時，大氣湍流效應造成了光束抖動、強度起伏，光束擴展和像點抖動等現象。
  9. The text compares experiment data with the selected theory direction fig and modifies the equal value and standard difference of each segment i n the se i ected wave w i dth d i r ect i on f i g by us i ng the re i at i ve i y between the statistical equal value and standard difference, then makes use of the controls the correlation time to real ize the signal undulate

    通過實驗數據與選定的理論方向圖的對比分析，利用統計出的均值和標準差的相對量，對給定波束寬度的方向圖每段的均值和標準差進行修正。然後利用相關特性，通過控制相關時間，以達到能夠控制信號起伏的目的。
  10. It need n ' t to distill coherent carrier and there is no trouble such as phase faintness, loop hit etc. the packaged wave of n / 4dqpsk is comparatively tiny, which is appropriate to the mobile communication

    / 4dqpsk信號包絡起伏相對較小，比較適合移動通信。此外，它可以採用差分解調，也可以採用相干解調的方式。
  11. The underwater acoustic channel is very complex where cochannel interference, doppler frequency offsets, narrow bandwidth and time and frequency selective deep fades obstructs the development of high speed and fidelity underwater data transmissions. thus projects of high speed and fidelity underwater signal transmissions become a hotspot in the fields of world academic circles. the conventional serial communication must use adaptive equalizer to combat the multipath in real - time

    海洋水聲通道是一種極其復雜多變的時-空-頻變參通道，其通道窄，強多途干擾，信號起伏衰落嚴重，一直是水下信息可靠高速傳輸的主要障礙，因此如何在水聲通道中高速率準確地傳輸數據，就成為世界性的熱門課題。
  12. In this thesis, based on this kind of application, we made theoretical analysis and engineering practice on high - precision lfmcw and its signal processing millimeter wave broadband lfmcw radar has quite high theoretical range - precision and distance resolution, however, for the real radar system, the nonideal parameter of its transmitting signal, such as power fluctuation and the nonlinearity in frequency sweep, will result in the decreasing of the practical rang - precision and the distance resolution of radar

    本文基於這一應用對高精度lfmcw測距雷達及其信號處理進行了理論分析和工程實踐。毫米波寬帶lfmcw雷達具有很高的理論測距精度和距離分辨力，但對于實際的雷達系統，其發射信號的非理想參數-掃頻功率起伏和掃頻非線性，將使得雷達的實際測距精度和距離分辨力下降。
  13. 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。
  14. This text analyses experiment data and emulate undulate mode ! of the signal based on statistical character from the point of matrix and relativity

    本文通過對實驗數據的分析，基於實驗數據的統計特徵量，從矩和相關性這兩種統計量來模擬信號的起伏模型。
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