虛脈沖 的英文怎麼說

中文拼音 [xūmàichōng]
虛脈沖 英文
ghost pulses
  • 虛 : Ⅰ名詞1 （空虛） void; emptiness 2 （政治思想等方面的道理） guiding principles; theory 3 （二十八...
  • 脈 : 脈名詞1. （動脈和靜脈的統稱） arteries and veins2. （脈搏的簡稱） pulse 3. （像血管的組織; 連貫成系統的東西） vein
  1. This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions

    首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。
  2. Pspice models for fcg, pulse transformer, electric exploding wire opening switch ( eeos ), blumlein pulse forming line, and virtual cathode osillator ( vircator ) are created

    利用pspice程序，創建了包括脈沖變壓器、電爆炸絲（ eeos ） 、 blumlein傳輸線、虛陰極振蕩器（ vircator ）和fcg等在內的電路元件模型庫。
  3. It provides an active field for development of radar techniques. this dissertation is based on the project " cfar ( constant false alarm rate ) detection for airborne pd radar "

    本文是結合課題「機載脈沖多普勒雷達恆虛警檢測性能研究」進行的，主要考慮如何克服地雜波影響，提高系統的檢測性能。
  4. To suppress the clutter, noise and detect target, we adopt several advanced sp methods such as pulse compression, mti, mtd, cfar, amplitude - comparison angle measurement and ambiguity resolution, of which we emphase the algorithms of cfar and ambiguity resolution. two cfar algorithms, cell - averaging cfar ( ca - cfar ) and ordered

    為了抑制雜波、噪聲和檢測目標，採用了脈沖壓縮、動目標顯示、動目標檢測、恆虛警、單脈沖比幅測角和解模糊等較先進的雷達信號處理技術，並採用了多模式分通道處理方式。
  5. Tomachan is an inductive energy storage pulsed power device. this paper presents the improvements on the trigger switch, the constant - current charging system, and the diode cathode of tomachan

    Tomachan系統是一臺電感儲能型脈沖功率裝置，可用來進行反射三極體虛陰極振蕩器的研究。
  6. The frequency and mode of the generated microwave are very pure. these results can provide a possible method for constructing a compact high - power microwave device. in addition, a virtual cathode oscillator with an axially extracted te11 mode based on the spark05 accelerator in our laboratory has also been investigated using the pic simulation code

    基於spark05加速器電子束參數設計的軸向提取te11模虛陰極振蕩器，利用類似的設計思想，通過改變電壓的饋入方式和陰陽極結構，實現了中心陰極負脈沖電壓的激勵，同樣獲得了較好的粒子模擬優化結果。
  7. Unlike the rapidly rotating neutron stars in the crab nebula and vela supernova remnants that are surrounded by dynamic magnetized clouds of electrons called pulsar wind nebulas, this neutron star is quiet, faint, and so far shows no evidence for pulsed radiation

    與蟹狀星雲和船帆座超新星遺跡中被磁化電子云（脈沖星風星雲）環繞的高速自轉中子星不同，這顆中子星安靜而虛弱，目前為止，沒有顯示脈沖輻射的跡象。
  8. Next, the effects of the electron - beam quality on the characteristics of the vircator are investigated with simulation method. the simulation results show that the front edge of the beam pulse has almost no effect on the saturated microwave output, while good front edges can accelerate the saturation of the virtual cathode oscillation, and beam quality ( except its energy spread ) has almost no effect on microwave frequency, and so on

    結果表明：上凸形束脈沖前沿可使虛陰極振蕩器達到飽和振蕩的時間縮短但對微波飽和功率基本無影響；束流脈寬應足夠大，否則虛陰極振蕩器不能達到飽和振蕩（對應本文中的模型，束脈寬應大於16ns ） ；能散度的影響不可忽視，當能散度為5時，束波轉換效率從單能束時的3 . 8降至1 . 5 ；束流質量（除能散度外）對微波頻率基本上沒有影響等。
  9. ( 3 ) the mono - pulse range cell integration detection ( mprid ) method has been improved to adapt to the unrayleigh clutter background, and then the monte - carlo simulation method has been used to analyze the detection performances compared with the dtd

    （ 3 ）改進了噪聲背景下的單脈沖徑向積累恆虛警檢測方法，使之適應于非瑞利雜波背景，並採用蒙特卡羅模擬比較分析了該方法與雙門限檢測方法的性能。
  10. I also heard of the false pulses elsewhere

    我在別處也聽說過這些虛假脈沖
  11. This system captures the rack position signal and rotate speed signal of the fuel injection pump, and calculates the circulating fuel injection quantity by programming the computer. then the computer is programmed to control the daq board to generate a certain width pulse. finally, controlled by the pulse, the alcohol injection system injects a certain quantity alcohol into inlet manifold according to a setting diesel / alcohol proportion

    該系統採用了在labview平臺上開發的pc總線?插卡式虛擬儀器系統，系統通過採集噴油泵的供油拉桿位置信號和轉速信號，利用計算機計算得出柴油的循環噴油量，再根據程序設定的柴油/酒精比例控制數據採集卡發出一定寬度的脈沖，控制低壓酒精噴射系統按比例將酒精噴入進氣歧管。
  12. Our research is mainly about visual multi - channel pulse signal generator ( virtual instrument )

    本課題的主要研究重點是可視化、多通道脈沖信號發生器（虛擬儀器）的研製與開發。
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