wigner 中文意思是什麼

wigner 解釋
威格納
  1. The fractional fourier transform is linear time - frequency transform, and it doesn ’ t have disadvantages of wigner - ville distribution. moreover, the precision of this method is higher, and the performance of antinoise is better

    而分數階傅立葉變換是線性時頻變換，所以它不受交叉項的干擾，沒有不模糊區間減半的缺點，而且它的估計精度高、抗噪性能好。
  2. Characterization of pressure signals in fluidized beds loaded with large particles using wigner distribution analysis : feasibility of diagnosis of agglomeration

    基於魏格納分佈的鼓泡流化床中結焦早期診斷
  3. The experimental results show that the small targets submerged by the large ones can be detected effectively, and better accuracy and shorter computation can be obtained by using the modified rwt than radon - wigner transform

    本章首先分析了基於離散多項式變換（ discretepolynomial - phasetransform ， dpt ）參數估計的原理，並將dpt應用於多目標分辨中。
  4. We also discuss the statistical relations of the majorana lattice fermions and the majorana fermi fields respectively. chapter3 : new jordan - wigner - rype transformation between spin - 3 / 2 and fermions of two types is shown

    第三章：介紹了在自旋- 3 2的自旋算符和雙費米子之間構建出的一種新的「 jordan - wigner 」類型的變換。
  5. Instantaneous frequency estimation of the surface myoelectric signal wigner - ville distribution based technique

    分佈的表面肌電信號瞬時頻率估計
  6. The reassigned smoothed pseudo wigner - ville distribution ( rspwvd ) is introduced, which has less interference and higher resolution than other time frequency distributions like wigner - ville, choi - williams etc. it is used to detect the multi - knocking of engine such as cylinder, piston pin, valve, crank bearing, connecting rod bearing and jib knocking. a new fault diagnosis technique based on the rspwvd for the engine multi - knocking problem is proposed. by comparing the bispectrum and bicoherence of the gear vibration signals, it is demonstrated that bispectrum has an advantage over bicoherence for feature extraction of such signals

    第四章首次引入一種重分配方法，得到干擾項少而解析度高的重分配平滑偽魏格納維爾分佈（ rspwvd ） ；對發動機曲軸主軸承響、連桿軸承響、活塞銷響、活塞敲缸響、氣門響和挺桿響等常見機械異響故障振動信號特徵進行了全面地比較分析；通過對各種異響故障特徵信號的分析研究，提出基於rspwvd的發動機多異響故障診斷策略，利用該策略可以準確識別不同的發動機異響故障。
  7. Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation

    低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。
  8. A method for determination of equivalent dielectron atomicspectroscopic term with wigner coefficient

    系數推求同科電子光譜項
  9. Linear frequency modulated ( lfm ) signals as the most popular pulse compression signal are a typical kind of time - varying, nonstationary signals, so applying the wigner - ville distribution into lfm signals has more advantages than conventional methods

    雷達脈沖壓縮技術中所使用的線性調頻信號是一類典型的時變非平穩信號，採用時頻分析的研究方法處理線性調頻信號有著傳統方法無法比擬的優點。
  10. It is has been known that the energy spectra statistic of a chaotic system agrees with wigner distribution which is achieved from random matrix theory and the one of a integrable system is poisson distribution achieved originally from the irregular spectra

    一個經典混沌系統的量子能譜統計分佈滿足由隨機矩陣理論所導出的winger分佈，而可積系統滿足無規能譜的統計分佈即泊松分佈。
  11. Chapter4 : the applications that one - dimensional spin - 1 / 2 jordan - wigner tnmsfermation is used for some spin chain models are displayed

    第四章：介紹了一維自旋1 2 「 jordan - wigner 」交換在若干自旋鏈模型中的應用。
  12. Simulation on identification of cracked rotor by wigner - ville distribution

    分佈裂紋轉子識別的模擬
  13. Making use of the wigner transform of the one - body density matrix, the coherent density fluctuation model ( cdfm ) is introduced into semiclassical distorted wave ( scdw ) model. the new model is applied to the analyses of multistep direct processes of ( p, p ' x ) reactions to continuum

    本文利用單體密度矩陣的wigner變換，將相干密度漲落模型（ cdfm ）引入半經典扭曲波（ scdw ）模型，並將新的scdw模型應用於分析預平衡反應（ p ， p ' x ）中散射到連續態的多步直接過程。
  14. The nobel prize in physics 1963 : eugene paul wigner

    諾貝爾物理學獎-尤金保羅維格那
  15. As a primary work for reconstructing wigner function of single photon state, we reconstruct wigner function of vacuum and coherent state. the effect of kc and the number of the data is discussed in the process of reconstruction

    作為重構單光子wigner函數的實驗準備，重構出連續光真空態和相干態的wigner函數，並考慮了kc值和實驗採集的數據點數量對實驗結果的影響。
  16. A comprehensive review of the basic analytical methods for the beam transformation including the matrix optics method, diffraction integral method and wigner distribution function method is summarized

    對研究光束傳輸變換的基本理論方法，包括矩陣光學方法、衍射積分方法和wigner分佈函數方法作了歸納。
  17. The application of pseudo - wigner and continuous wavelet transform in gearbox fault diagnosis

    偽魏格納分佈和連續小波變換在變速箱故障診斷中的應用
  18. In the process of feature character comparison, some methods for characte r comparison are presented which are chamfer matching, the texture feature of gray matrix and texture analysis using wigner distribution

    在特徵字的特徵提取過程中，對字元的形狀特徵，運用距離變換匹配的方法；對字元的紋理特徵，採用基於遊程矩陣的分析方法和wigner分佈的分析方法。
  19. In the thesis we firstly introduce one - dimensional spin - 1 / 2 jordan - wigner transformation and the holstein - primakoff transformation that are used widely in the quantum many - body theory. secondly, another form of one - dimensional spin - 1 / 2 jordan - wigner transformation is discussed

    本文中，我們首先介紹了在量子多體理論中廣泛應用到的一維自旋- 1 2 「 jordan - wigner 」變換以及「 holstein - primakoff 」變換。
  20. Compact in configuration, mightiness in function, convenience in manipulate and high resolution, high efficiency, low cost are all the characteristics of this instrument. in the end, we give a brief introduce about some common analysis methods on oae signal. and lay a emphasis on wavelet and improved wigner - vill used in the analysis of soae and teoae, comparing with the tradition method, these new time - frequent methods have better time - frequent characteristic, are fitter for the oae signals

    最後，該文分別對耳聲發射信號的常用分析方法進行了介紹，並重點介紹了用小波變換、改進的維格納分佈等方法分別對soae信號、 teoae信號進行分析的情況，與傳統的處理方法相比較，時頻分析方法由於具有較好的時頻解析度，更適合於耳聲發射信號的分析。
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