標量波理論 的英文怎麼說

中文拼音 [biāoliánglún]
標量波理論 英文
scalar wave theory
  • : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : 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...
  • : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
  • : 論名詞(記錄孔子及其門徒的言行的「論語」) the analects of confucius
  • 理論 : theory
  1. 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,得出了差頻相位的具體表達式,表現出了要檢測的各的物意義,對檢測的方法提供了依據。利用二維fft方法,可以有效地提取回中目的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題,採取時間門的處方法。
  2. According to the theory of scalar diffraction, first, the equipollence of spatial distribution of the plane - wave interferential field and parallel projective sine grating is discussed

    摘要根據衍射,首先討了兩平面干涉場的空間分佈與平行投影正弦光柵的等價性。
  3. First, based on phased array antenna ' s mono - pulse goniometry and separate coordinate technology about phase control, the antenna beam pointing error formula, caused by phase quantization error, is derived from linear array and circular array to planar array and cylindrical array

    首先以單脈沖相控陣天線測角原為基本出發點,利用相位控制的坐分離技術,基於線陣、圓形陣等簡單形式的相控陣天線,推導了平面陣、圓柱面陣等相控陣天線由相位化誤差引起的束指向誤差公式。
  4. The third, after theoretically analyzing, the following practicable methods are put forward : 1 ) automatically pick - up the synchronous information by analyzing the spectrum of intercepted video - leaking information ; 2 ) realizing the phase lock and the electronic image stabilization by integral - projection and differential - positioning ; 3 ) improving the effect of accumulation mean filter and the pectination filter by using electronic image stabilization ; 4 ) automatically adjusting image acquisition parameters by detecting the image entropy, therefore the quality acquired image is improved ; 5 ) to realize the quantitative test of a leaking extent, a standard test picture was designed. finally, a proto type for leaking information processing based on our techniques mentioned above and the virtual instrument principle was designed and tested

    分析的基礎上,提出了以下的實用技術: 1 )用譜分析方法從截獲的信息中自動提取同步信息; 2 )用積分投影、微分定位的方法進行相位檢測,實現可靠的鎖相和電子穩像; 3 )將電子穩像技術用於重加濾和梳狀濾的濾方法,改進了濾效果; 4 )通過檢測圖像信息熵實現圖像採集參數的自動調整,改進了圖像採集的質; 5 )設計了用於儀器定準測試圖,可以對泄漏信息進行定檢測。
  5. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原的單站無源定位基礎上,本文第二章提出了幾種在角度測的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測模型,並對它們進行了分析和模擬;第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件;第四章針對傳統擴展卡爾曼( ekf )方法的缺點,提出了一種修正協方差的擴展卡爾曼濾( mvefk )方法,並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾方法進行了性能模擬比較;第五章通過引入雷達機動目跟蹤方法和模型,提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法;第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究,提出了幾種高精度測脈沖序列多普勒頻率變化率的方法。
  6. Besides the scalar diffraction theory, the simulation method of beam propagation method, which is extensively used in the simulation of integrated optical devices, is also discussed though no successful result of calculation with bpm is given

    本文給出了平場輸入和輸出edg的設計方法,並利用衍射對設計的結果進行模擬,驗證了平場輸出edg具有很好的分效果。
  7. China has a vast population and a broad market, thus liquor consumption owns a considerably potential market in china. however, due to the intence yet disorder competition of the present market, the marketing of the liquor industry in china has fallen into an rather awkward dilemma. the hidden trouble, the lurking danger, cause the businessmen in this line unable to extricate themselves from a low - leveled ricious competitive cycle. such severe challenge also confronts yuechitequ company. therefore, the most urgent problems waiting for resdring lie in how to take advantage of the present resoures effectively, how to distinguish the market situation, and how to institute a scientific product - popularizing programme in order to keep the enterprise standing undefeated in the intense competition, and develop the enterprise rapidly, favorably. this thesis makes a thoughtful analysis about the external conditions of market and internal ones resources in the yuechitequ by means of inrestication through questionaire and scientific data processing. in the second part, with the application of stp system theory of marketing and new - product - pricing theory, it designs and further expounds the popularization of the new products of this company, then forms a excutable performance and makes a constant rerision via market practice. in this way can it explor a suitable road to popularize the products in the liquor market, help the enterprise to free from the difficulties and progress healthely, consitently

    本文通過在岳池特曲公司現有產品市場進行問卷調查,運用科學的數據處方法對所回收的658份問卷統計分析,以及利用美國哈佛大學商學院著名教授邁克爾?特( michaelporter )提出的五種力模型和價值鏈與vrio分析,對白酒市場的公開數據細致分析,以明確四川省岳池特曲酒業有限公司實施新產品市場推廣所面臨的市場條件和內部資源條件,在此基礎上,本文運用市場營銷學中stp系統、新產品定價等,對岳池特曲公司推出的白酒新產品進行市場細分、確定目市場和市場定位,並根據市場營銷4p制定新產品的產品策略、價格策略、渠道策略、市場促銷推廣策略,形成最終整體完善的可執行方案,再通過市場實踐對推廣方案進行檢驗、修正,力圖在酒類市場中探索一條新產品市場推廣的適用道路,並幫助企業擺脫困境、邁開步伐、持續健康的發展。
  8. In this paper, the drive theory of the large ratio friction transmission is studied ; a new type elliptical cam wave generator is designed ; the large ratio friction transmission prototype is designed and manufactured ; based on the ansys finite element method software, structure of the elliptical cam is analyzed ; precision index of the manufactured large ratio friction transmission prototype, such as transmission accuracy, least step, stability of the least step, load capacity is measured by the absolute rotary encoder. by analyzing the measurement data and research content, it is think that the new elliptical cam wave generator could overcome a good many problems brought by processing errors, facilitate size precision adjustments, input moment can be achieved in the form of a pure force couple importing ; through this study, " the large ratio friction transmission prototype " could apply in practical engineering basically

    本文研究了大速比摩擦傳動的傳動;設計了新型橢圓凸輪發生器,設計製作了大速比摩擦傳動樣機;用軟體ansys對所設計的橢圓凸輪結構進行了有限元分析;用19位絕對式編碼器測試了大速比摩擦傳動機構的傳動精度、最小步距、最小步距的穩定性以及帶負載能力等各項精度指;對測數據和研究內容進行了歸納和整,認為新型橢圓凸輪發生器克服了加工誤差帶來的諸多問題,新型橢圓凸輪發生器可以進行尺寸精度調整,能夠達到輸入力矩以純力偶的形式輸入;通過本項研究,基本可以使「大速比摩擦傳動機構」在工程中得以應用。
  9. Then based on kirchhoff approximation theory, the formula of the coherent and incoherent scattering intensity of plane wave from two dimensional dielectric normally distributed rough surface are derived, and the scattering intensity of a planar, rough surface of unit area

    然後從粗糙面散射kirchhoff近似出發,得到了平面對高斯分佈的二維隨機粗糙面的相干散射和非相干散射強度表達式,並給出了單位面積粗糙面非相干散射的表達式。
  10. By use of the relationships between the hermite polynomial and the laguerre polynomial, the eigenequations of one - dimensional harmonic oscillator and hydrogen atom are conversed into the same equations in form. therefore the relationships between energy levels and wave functions of one - dimensional harmonic oscillator and hydrogen atom are found. through the coordinates transform, the relationships between energy levels and wave functions of two - dimensional harmonic oscillator and hydrogen atom are found

    首先綜述了諧振子與氫原子的基本的研究現狀,並在此基礎上對諧振子與氫原子的關系展開了研究,通過厄密特方程與拉蓋爾方程的相互轉化,將一維諧振子與一維氫原子的本徵值方程轉化為相同形式的方程,從而比較得出它們能函數間的關系,並通過坐變換將直角坐系下二維氫原子的本徵值方程轉化成與曲線坐系下二維諧振子的本徵值方程相同的形式,從而得出二維氫原子與二維諧振子的能函數的關系。
  11. The main works and contributions achieved in this dissertation are concluded as follows : 1. based on the scalar diffraction theory, the mathematical model of optical configuration of transmissive grating interferometer is established. it indicats that moir interference fringes is affected by many parameters, such as grating pitch, light wavelength, light beam size and incidence angle, etc. the variation that the width, intensity, orientation and contrast of moir interference fringes along with every parameter is numerically analyzed

    主要的研究內容和所取得的成果可歸納如下: 1 .基於衍射,建立了透射式光柵干涉儀光路的數學模型,分析了透射式光柵干涉儀的莫爾干涉條紋與光柵柵距、光柵開口比、光長、光斑尺寸、光束入射角等多個參數的關系。
  12. A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied

    文在激光光束前畸變檢測和控制上進行了新的探索,主要就空間相位調制環路徑向剪切干涉儀以及它對前畸變的檢測和液晶空間光調制器及其對中頻段前畸變的控制進行了研究,其研究的內容和取得的成果如下:一、根據衍射,結合低頻前畸變的高斯隨機位相分佈模型,研究了不同均方根梯度低頻畸變前對激光光束焦斑聚焦性的影響,並採用描述中頻段前畸變的功率譜密度概念,模擬計算了它對激光焦斑旁瓣的貢獻。
  13. In order to analyze the effect of aberration of amplitude and phase of laser beam on centroid position of focal spot, based on the fraunhofer formula for light wave scaler diffraction theory, according to the definition of first order moment centroid position, the general expression of focal spot centroid position directly depending on the complex amplitude of near field is derived

    摘要為分析振幅和相位發生畸變情況下光束焦斑質心位置所受的影響,以光衍射中的夫瑯和費衍射公式為基礎,根據光斑強度分佈一階矩質心位置的定義,推導了直接依賴于光束近場復振幅分佈的焦斑質心位置的一般表達式。
  14. When the isotropic waveguide is under the isotropic disturbances, the coupling term due to polarization, which is presented in the coupled - mode theory of the wei - ping huang, is n ' t included in this rigorous vectorial coupled - mode theory, exactly, the rigorous vectorial cmt does n ' t contain the coupling term due to polarization which is include in the scalar coupled - mode theory because this term is counteracted with the other coupling term neglected under weakly guiding approximation. as for anisotropic disturbances, we get the coupled - mode equations with arbitrary dielectric tensors. from them, we obtain the coupled - mode equations of the slowly varying term c ( z ) which is more simplicity

    當受到各向同性微擾時,我們發現嚴格的矢所得到的耦合系數表達式中並不包括wei - pinghuang的中的偏振耦合項,更確切的說,偏振耦合項正好與因弱導近似而忽略的項相抵消,這就是所得到結果(有偏振耦合項)與矢近似下的結果(不含偏振耦合項)不一致的原因所在;當各向異性微擾時,我們得到了包含微擾介電張各個分的橫電磁場耦合方程,討了微擾介電張各個分對耦合的影響,而且從橫電磁場耦合方程出發得到了形式更加簡單的只含有橫電場系數的緩變分c _ ( z )的耦合方程和耦合系數表達式,並以弱導近似下的單模光纖兩正交偏振模耦合為例對耦合系數在不同條件下的取捨做了定性的分析。
  15. This paper studies and discusses comprehensively the applications of data processing techniques in track while scan radar. it begins with studies of filter theory and multitarget tracking theory, and continues to make deep discussion of such topics in the multitarget tracking environment as target movement models, adaptive - filtering and prediction, dynamic data association algorithms, and measured data. for radar using purpose, the data algorithms for nnf and the adaptive a - p filtering and prediction based on " cv " model are studied emphatically

    文對邊掃描邊跟蹤雷達中數據處技術的應用作了全面的研究與討,深入研究了符合實際的濾與多目跟蹤;對目運動模型、自適應卡爾曼濾與預測技術、各類數據關聯演算法、測數據的處等多目跟蹤所涉及的主要內容進行了討;根據實際雷達跟蹤要求,對nnf數據關聯演算法和基於「 cv 」運動模型的自適應濾與預測演算法等作了重點研究。
  16. Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain

    通過大分析和模擬實驗,得到了一批具有一定價值的結:從信號處的角度出發,對于脈沖式干擾,能夠運用時域滑動窗口積累的方法去掉,並且通過預測插值得到較好的恢復;對于高斯白噪聲干擾,在時頻變換域內應用時頻分析方法可減小其對分散點目的干擾;對于射頻噪聲,通過平均距離頻頻法和頻域陷的方法可以去掉;從改變合成孔徑雷達系統角度出發,類似雙基地雷達能夠避免各種干擾,對發射信號進行調幅,調相以及改變調頻斜率都是較好的抗干擾方法。
  17. This paper ' s thinking is the following : first, historic origin and background of economic growth quality theory is studied, based on related economic development and growth theory esp. the sustainable development theory ; then, set up some index system for evaluating industrial economic growth quality by index - designing principles ; thirdly, do positive study on lanzhou industrial economic growth from the 4 aspects of economic structure, economic effect, economic fluctuation and economic progress degree of lanzhou industry, and do overall evaluation. lastly, this paper puts forwards to some thinking and countermeasures for improvement

    本文的基本思路是:首先,以經濟增長和經濟發展特別是可持續發展為基礎考察經濟增長質淵源與背景;其次,以指體系設計原則為指導構建工業經濟增長質評價指體系;再次,從工業經濟結構、工業經濟效益、工業經濟動和工業文明進步程度4個方面對蘭州市工業經濟增長質加以實證分析,並進行總體評價;最後,對改善蘭州市工業經濟增長質提出總體對策思路。
  18. Scalar wave theory

  19. The aim of this paper is to extend the theory and application of multiwavelet and introduce novel methods for fault signal processing, which may have a considerable impact on engineering application. from the key problem - pre - processing of multiwavelet applications, the necessity of pre - processing method is discussed. after the influence of pre - processing methods to multiwavelet filters response are analyzed and studied in detail, the two estimation standards are proposed to choose the best pre - processing method

    本文首先從多小在實際應用中的關鍵問題- - -預處問題出發,探討了多小採用預處方法的必要性,從濾器響應的角度分別對這些處方法對原有多小器響應的影響進行了詳細分析與研究,提出兩種衡來討最優預處方法的選擇問題。
  20. We decide to use seven - sections coupled - line filter after comparing the various filter circuits, and complete the quantitative analysis and optimization design by ads, hfss etc. ( 2 ) three - stages fet low noise amplifier according to the lna ’ s design theory and guide line, we decide to use ne3210s01 fet and choose the form of three - stages, thus we can achieve high stability, low noise and high gain

    通過對各種帶通濾器電路方案進行比較,確定採用七階平行耦合微帶濾器,並利用ads , hfss等工具進行了定分析和優化設計。 (二)三級聯低噪聲放大器根據微lna設計原及指要求,我們選用ne3210s01系列低噪聲管,並採用三級放大的形式,以期獲得高穩定性,低噪聲,高增益。
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