重影脈沖 的英文怎麼說

中文拼音 [zhòngyǐngmàichōng]
重影脈沖 英文
ghost pulse
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 影 : Ⅰ名詞1 （物體擋住光線后映出的形象） shadow 2 （鏡中、水面等反映出來的物體形象） reflection; image...
  • 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. 2. because lightwave systems commonly use fibers with randomly varying birefringence, it is important to study how optical pulses are affected by random birefringence changes

    二、由於在一般光通信系統中，所採用的光纖的雙折射都是隨機變化的，因此研究光脈沖如何受光纖隨機雙折射變化的影響就變得十分重要。
  2. We modified the electron trapping theory to be consistent with our simulation results. 2. in the mp - lwfa simulation, we studied the influence of multiple pulses with various arrangements of the position of the pulses

    在mp - lwfa中，我們研究不同的脈沖長度、不同的脈沖間隔對產生尾流場的影響，著重討論尾流場的飽和機制。
  3. Water dielectric pulse power modulator has been widely applied because of its merits of high energy storage density, compactness, and capability to drive low impedance high power microwave sources. research for multi - pulse operation of high power spark gap switch with high current and comprehending its physical properties are the basis to study multi - pulse operation or repetitive operation of water dielectric pulse power modulator

    水介質脈沖功率調制器具有儲能密度高，結構緊湊、與低阻抗微波源較好匹配的特點，因此得到廣泛的應用，但是受到高功率、大電流氣體開關的絕緣恢復的影響，水介質等低阻抗脈沖功率調制器的重復頻率運行或多脈沖運行受到較大的限制。
  4. Abstract : as the heart of twt ， the structure stability of grided electron gun directly affect pulse output performance of twt ， and the structural reliability under vibration stress are especial - ly important for today ' s manufacturers

    摘要：柵控電子槍作為行波管的「心臟」 ，其結構的穩定性直接影響著管的脈沖輸出性能，特別是在振動應力下的結構可靠性更是當今生產單位關注的重點。
  5. This dissertation majorly researchs and designs full digital dc driving system with fuzzy control. it makes a scheme argumentation firstly, analyzing the pid algorithm and fuzzy control algorithm the ordinary digital pulse trigger algorithm and the double remainder method of pulse trigger in detail, and fuzzy control and the double remainder method are put forward to settle the under - mentioned problems, namely, the new viewpoint and the task having finished in this dissertation as follows : ( 1 ) in rder to overcome the influence of dc motor ' s parameter changing with time and nonlinear on the control system performance, this dissertation adopts fuzzy control as outside regulator and pi control as inside regulator in double regulators of the full digital dc motor driving system design ;. ( 2 ) aiming at the pulse trigger reliability of the ordinary d igital pulse trigger being low and leaking the pulse or the order of pulse confusion, this paper adopts the double remainder algorithm with short response time high pulse trigger reliability good adaptability and anti - jamming ; ( 3 ) this dissertation adopts tms320lf2407 which has good performance as major control chip this chip has power function with fast calculation capability, and accomplishes the software and hardware design in the dc motor driving system with fuzzy control ; ( 4 ) this dissertation also puts emphases on anti - jamming in hardware and software ; ( 5 ) after having designed the sample of full digital dc motor driving system with fuzzy control, a lot of experiments are performed to verify the performance and settles problems during experiment. the result of experiment proves the feasibility of design

    首先進行了方案論證，對模糊控制演算法和數字pid調節演算法、觸發脈沖的一般演算法和雙余演算法進行了詳細地研究分析，提出應用模糊控制和雙余法解決下述問題，即該論文主要的新見解和所完成的工作： （ 1 ）為了克服直流電機參數時變性和非線性因素對控制性能的影響，本設計中，雙閉環調速系統的外環採用模糊控制，內環採用pi控制，使系統在一定范圍內對直流電機參數變化和非線性因素影響有自適應能力； （ 2 ）針對常規數字觸發器演算法中觸發脈沖的可靠性不高，經常出現漏脈沖或是脈沖混亂的情況，本文採用雙余法，該演算法具有響應快，可靠性高，具有良好的適應性及抗干擾能力； （ 3 ）本設計中採用了速度快、功能強的tms320lf2407作為系統的主控晶元，應用該晶元完成系統的軟硬體設計： （ 4 ）本文對系統抗干擾的軟硬體措施進行了重點研究； （ 5 ）設計了具有模糊控制的全數字直流傳動系統原理樣機，並進行了試驗驗證，對試驗過程中出現的問題及時解決，最終實驗結果證明設計是可行的。
  6. This paper analyses the effect in receiver of each technical criteria of mono - pulse radar, detailedly analyses the influence to angle measuring precision of each technical criteria of the receiver and results in technical criteria which is important to angle measuring precision. then, measuring and compensating methods on channel discrepancy

    論文分析了單脈沖雷達接收機的各項技術指標在接收機中的作用，著重分析了接收機的各項技術指標對測角精度的影響，得出了對測角精度而言，較重要的接收機技術指標，論文還討論了通道不一致性的測量和補償的方法。
  7. The shorter the interval between the two pulses of the current wave, the fewer strikes the varistors can endure. at the same time, the dc ljima changes fast - slowly - fast alone with the experiment continuing. microstructual disorder, such as variations in the height of the electrostatic potential at grain boundaries and electrode protrusions into the zinc oxide varistors, causes substantial temperature rise in a microscopic region around the defect and is the source for failure

    雷電的多重閃擊對雷電過電壓保護器件的影響更加嚴重，本文首次採用不同間歇時間雙脈沖電流沖擊對氧化鋅電阻進行了多次試驗，試驗表明：氧化鋅電阻在雙脈沖電流沖擊下更容易出現老化破壞現象，間歇時間越短，電阻能耐受的沖擊次數越少；此外，直流u _ （ 1ma ）值隨沖擊次數的增加具有快一慢一快的下降過程。
  8. This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system

    本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。
  9. In order to restrain the bad effects of noise and improve the defect detecting ability of pt, image reconstruction methods based on logarithm polynomial regression were carried out here to reconstruct and enhance pt image sequences of carbon fibre reinforced plastic ( cfrp ) laminates

    為了抑制各種噪聲的不良影響，提高脈沖熱像檢測的缺陷探測能力，運用基於對數多項式回歸的圖像重建方法對碳纖維增強塑料層壓板脈沖熱像檢測的熱像序列進行圖像重建與增強。
  10. Abstract : based on the ahievement of epitaxial growth in several perovskite oxide films, we discuss the importance of substrate temperature ( ts ) and substrate material in the epitaxial growth of perovskite oxide thin films. influences of ts on growth orientation and epitaxial threshold temperature were observed. the results indicate that during the growth of the oxide films the phase formation and growth dynamics should be taken into consideration. the threshold temperature for epitaxial growth depends on the substrate materials. this demonstrates the influence of substrate material on the initial nucleation and epitaxial growth

    文摘:在成功地外延生長超導、鐵電、鐵磁等多種性質的鈣鈦礦結構氧化物薄膜的基礎上，討論影響氧化物薄膜外延生長的一些因素.考慮到相形成和薄膜生長動力學，在利用脈沖激光淀積法外延生長氧化物薄膜中襯底溫度是十分重要的工藝參數.襯底溫度對成相和生長薄膜的取向都有影響.考慮到薄膜是首先在襯底表面成核、成相併生長.因此襯底材料晶格的影響是不容忽視的.觀察到襯底材料對薄膜外延生長溫度的影響.在適當的工藝條件下，利用低溫三步法工藝制備得到有很強織構的外延薄膜.這突出表明界面層的相互作用對鈣鈦礦結構薄膜的取向有著相當大的影響
  11. Following the rapid increase of the data transmission rate of optical fiber communication, the time slot confined by the time interval of the two successive signals is greatly shortened. under this circumstance, the effect of the fabry - perot filter to a short pulse signal may affect the following short pulse signals

    隨著通信速率的提高，相鄰的信號間的間隔越來越小，法布里-珀羅濾波器對某個信號的作用有可能影響下一個信號，因此研究法布里-珀羅濾波器對超短光脈沖的影響有著非常重要的意義。
  12. Due to the advantages such as short response time, easy operation, and convenient to comprehend the wavefront modes, the hartmann wavefront sensor ( h - wfs ) is widely utilized nowadays in real - time adaptive optics system, turbulence statistical characterization, optical components test, light quality evaluation, laser atmosphere communication, the wavefront correction of ultrahigh power laser pulses, as well as human eye aberrations measurement. the detection accuracy is important to the performance of the whole optical system. considerable efforts have been performed in the investigation of h - wfs wavefront detection techniques in past years

    哈特曼波前傳感器具有實時探測，易操作，可以直觀顯示波前畸變分佈等優點，被廣泛地用作自適應光學系統的波前信息探測和波前畸變補償，大氣湍流統計特性表徵，光學元件檢測，光束質量評價，超強激光脈沖波前整形，激光大氣通信以及人眼象差測量等各個領域之中，其探測精度的高低對整個光學系統的工作性能有著極其重要的影響。
  13. It is found that the peak power of pump pulse is important and the fourth and fifth dispersions are crucial to flatly wideband sc generation from the fiber. the results show that the higher - order nonlinear effects on sc generation can be ignored

    研究結果表明，泵浦脈沖峰值功率對sc譜的產生有著重要影響，光纖的四階、五階等高階色散的綜合作用對sc譜的形成起決定因素，高階非線性效應（ raman自散射和自變陡效應）的影響可以忽略。
  14. During these processes, diffraction, self - phase modulation, cross - phase modulation and physical distance between the beam centers all have important effects on the beams and the pulse beams propagation

    在這些過程中，衍射、自相位調制、交叉相位調制、光束之間的間距等都對光束和脈沖光束在非線性介質中的傳輸產生重要的影響。
  15. Introducing several osl fabrication methods, mainly electric field poling method is investigated, and discussing the limit relation among poling electric field e, poling current i and natural poling intensity ps, and analyze the various factor affecting the osls quality. 4. the experiment of aperiodical litaos multi - wavelength shg is demonstrated

    3 、介紹了幾種介質制備的方法，著重對高壓電場極化法進行了理論研究，討論了脈沖電壓，電流及自然極化強度p _ s之間的制約關系，分析了影響成疇質量的幾個物理因素。
  16. Angle measuring precision phase sum / difference mono - pulse radar receiver is not only related to accurate strike to target, but also the base of successful penetration of interceptor missile for tbm anti - guidance system using two point sources of correlation, which is one of radar angle fraud technologies. thus, research on technical criteria influencing angle measuring precision of receiver is meaningful

    相位和差單脈沖雷達接收機的測角精度，不僅關繫到是否能精確地打擊目標，而且是tbm反制導系統利用相干兩點源雷達角欺騙技術，成功突防攔截導彈的基礎，所以對影響測角精度的接收機各項技術指標進行研究具有重要意義。
  17. It shows that the gas - collecting chamber had an important effect on the mutual influence between the neighboring filter tubes in the back pulse jetting

    同時證明在脈沖反吹過程中，集氣室對相鄰濾管間相互影響具有重要作用。
  18. The dispersive influence, especially the influence of the second - order and third - order dispersion, is researched first. in this part, the influence of the third - order dispersion on the super - gaussian pulse is mainly discussed, and the difference between gaussian and super - gaussian pulse is also qualitatively discussed ; the effect of the initial chirps is researched

    從而，本文首先對色散效應進行了研究，分析了二階和三階色散對光纖中光脈沖波形的影響，其中著重研究了三階色散對超高斯型光脈沖波形的影響，定性地分析了其與高斯型光脈沖波形演變的不同，並對初始啁啾的影響進行了闡述。
  19. In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.

    在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。
  20. Realizing the impact of chirp on the effect of carrier phase, some analytical expressions of chirped few - cycle pulses are also calculated, such as frequency gravity, pulse energy, center of gravity of time, effective pulse width, etc. results show that chirp makes the pulse characteristics more sensible to carrier phase, and chirp has greatly increased the pulse width when the carrier phase takes effect

    考慮到啁啾對載波相位作用程度的影響，導出了啁啾脈沖的頻率重心、脈沖攜帶的能量、脈沖時間重心以及有效寬度等參量的解析表達式，分析表明，啁啾使得載波相位比無啁啾的情況提前起作用了，即啁啾在很大程度上增大了載波相位發揮作用所對應的脈寬范圍。
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