旋量不變量 的英文怎麼說

中文拼音 [xuánliángbùbiànliáng]
旋量不變量 英文
spinor invariant
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  1. The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given

    利用坐標旋轉后球坐標變量間的關系和連帶勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式；以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系，寫出了引入二階矢量位的過程；以時諧場矢量邊值問題為例，闡明了不同坐標系下電磁場解的相互轉化原理，給出了一個解析解的轉化例子；在球坐標下，引入了較球矢量波函數更普遍的兩類矢量函數，給出了其在球面上的正交關系。
  2. 4 ) in a pre - swirl rotator - stator cavities with discrete pre - swirl nozzles and blade - cooling entry holes, the influences of pre - swirl angle and flow parameter on the flow and heat transfer characteristics were numerically investigated. the correlation for average nusselt number vs rotating reynold number or non - dimensional mass flowrate were established. the results show that : advantage of per - swirl inflow is the effect of cooling the blade - cooling entry holes ; pre - swirl inflow increases heat transfer in rotating disk of pre - swirl chamber ; as pre - swirl angle increases, local nusselt number decreases in pre - swirl chamber ; the temperature of stator of inner rotator - stator chamber and per - swirl chamber decreases as rotating reynold number increases ; when the axial mass flowrate maintains constant, heat transfer in the rotating disk of inner rotator - stator cavities does n ' t change as per - swirl mass flowrate increases, while heat transfer in the rotating disk of per - swirl chamber increases ; when the pre - swirl mass flowrate maintains constant, change of the axial mass flowrate has effect on the whole cavity

    結果表明，預旋進氣的優點在於增強了葉片冷卻孔附近的對流換熱效果，局部努謝爾數隨預旋角的增大而有所減小；隨旋轉雷諾數的增加，不論是內轉靜腔室還是預旋腔室的靜盤上的溫度都不同程度的降低：當軸向中心進氣質量流量不變時，隨預旋進氣的質量流量增加，內轉靜腔室的轉盤盤面上的換熱基本沒有變化，而預旋腔室的轉盤盤面上的換熱效果增強；當預旋進氣質量流量不變時，軸向中心進氣的質量流量的改變對整個盤腔都有影響。
  3. Recent researches extend the single axis approach to recover unknown rotation angles from uncalibrated image sequence based on a projective geometry approach. but these methods limited by the expense of computing fundamental matrices and trifocal tensors or of the nonlinear optimization involved in computing epipolar tangencies

    因此，探索一種有效而簡單的演算法，求解單軸旋轉運動中的不變量和旋轉角度，是當前計算機視覺技術中的一個熱點研究課題，也是本文的研究目的和出發點。
  4. This contrasts with the computation of fundamental matrices and trifocal tensors, which use only a subsequence of 2 and 3 views respectively. secondly, in our methods, the essential geometry of the image single axis geometry may be specified by six parameters and this may be estimated from one conic and one fundamental matrix ( a total of 12 parameters ) or may be minimally estimated from two conies ( a total of 10 parameters ). previous methods have involved estimating more than this minimum number of parameters

    從本質上講，本文提出的演算法是一個多視角幾何演算法，它充分利用了所獲得的圖象序列，將單軸旋轉運動的幾何信息很好地融入於二次曲線當中，從而創新地提出了利用二次曲線對單軸旋轉運動的不變量進行分析的方法，並首次求解出了單軸旋轉運動中的全部不變量。
  5. The optical activity resulting from the anisotropic attenuation of different linearly polarized light is considered, and the attenuation of linearly polarized light lies in the light reflection on the interface and the absorption in the er fluids

    考慮了電場作用下各向異性電流變液對入射線偏振光矢量不同振動方向的衰減不同而引起的旋光效應（電致旋光效應） 。
  6. For bilateral symmetry objects, the techniques on symmetry - point detection and symmetry - axis extraction are presented based on harmonic conjugation relationship. for rotated symmetry objects, the techniques on rotated units description and rotated symmetry center extraction are presented based on center invariants of objects. further more, by using 3d invariants and 2d projective transformation, an approach to recover shape from part symmetry objects is realized on some conditions

    （ 3 ）深入分析了2d對稱性目標透視成像的幾何特點，將共點四線交比用於目標輪廓上的關鍵點的特性描述中；利用調和共軛關系，提出了一種針對左右對稱型目標的對稱點檢測和對稱軸提取的演算法；利用交比關系構造了目標的形心不變量，提出了一種針對旋轉對稱型目標的旋轉對稱單元判定、旋轉中心提取的演算法；進一步利用3d不變量和2d射影變換，實現了一定條件下的對稱性目標的形狀恢復技術。
  7. Adiabatic invariant of vortex

    渦旋的絕熱不變量
  8. Adiabatic invariant of eddy

    渦旋的絕熱不變量
  9. Through the studies of the invariants of the single axis motions, computational theories have been developed in this thesis to provide practical solutions for the problem of structure and motion from fitting the corresponding points in the whole sequence to its conic locus or conies for short. it is then shown that all single axis geometry can be directly computed either from one conic and one fundamental matrix or from at least two conies. the rotation angles then can be calculated directly from using the laguerre formula

    本文通過詳細分析單軸旋轉運動中的不變量，利用物體點在單軸旋轉運動中軌跡為圓，而在圖象平面的投影為二次曲線的這一特徵，以二次曲線為分析的基元，研究了求解單軸旋轉運動結構問題的新理論和一系列新演算法，並在此基礎上完成了物體的三維重建等工作。
  10. A novel class of analysis tool in signal processing - higher - order statistics ( hos ) is presented in this thesis. we then use it along with the well - developed algorithms such as esprit and music in direction - of - arrival ( doa ) estimation

    本文介紹了信號處理中的一種新的分析工具? ?高階統計量，並與傳統的子寬間旋轉不變技術和多重信號分類技術相結合進行波達方向估計。
  11. First, the thesis introduces the definitions and the attributes of the higher - order statistics. it is insensitive to additive gaussian noise ( white or colored ), which is what we base on to doa problems. then two doa estimation algorithms based on higher - order statistics are presented, one is that forming cumulant matrix pencil used in esprit to estimate doa problems, the other is spectrum estimation method for doa estimation based on the eigenstructure analysis of the fourth - order cumulant, and comparing the effects of the estimation to conventional covariance - based doa algorithms "

    論文首先對高階統計量的定義和性質作了介紹，特別指出了高階統計量對加性高斯噪聲（白色或有色）不敏感，這是我們利用它進行波達方向估計的理論依據，然後文中提出了兩種基於高階統計量的波達方向估計方法，一種是利用子空間旋轉不變技術構造四階累積量矩陣進行估計的方法，另一種是基於四階累積量陣特徵分解的空間譜估計測向方法，並將它們的估計效果與傳統協方差方法的效果進行比較。
  12. This is understandable in terms of conservation of angular momentum. as the radius of rotation decreases, the rotational speed will increase accordingly

    這現象可用角動量守恆定律來解釋：當旋轉半徑縮短時，旋轉速率就相應加快，以保持角動量不變。
  13. In this paper, truesdell derivative is applied into large strain consolidation constitutive relation, which take consideration of the influence of rigidity rotation and deformation, and which makes the theory objective in a wide range

    大變形分析中應當採用客觀的應力應變度量。將truesdell率引入到本構關系中，既考慮了剛體旋轉不變性又考慮了變形的影響，使歐拉大變形固結理論具有廣泛的客觀性。
  14. Frequency using wavelet theory, another is multi - channels based on gray. the first method is based multi - scale decompression using wavelet theory, it extract gray feature from each channel to form feature vector, it can distinguish objects, but this method not have invariant property when object rotate

    基於小波的頻率多通道是從小波多分辨分解的角度，提取各頻率通道的灰度特徵形成特徵向量，該方法可以很好的區分目標，但不具有旋轉不變性。
  15. Meanwhile, objective to the requirement of both real - time and accuracy for moving shaped target detect and tracking, a novel method is proposed based on combination of images difference and feature invariant. the paper improved the tradition difference method, constituted a feature invariant which characterized the object contour without influence of object ’ s size change, shifting, and rotation, and developed a dynamic - extremum - matching scheme

    同時，針對識別跟蹤具有形狀信息的大飛行器目標所提出的快速準確要求，提出了一種基於改進的差分演算法與特徵不變量匹配的目標識別方法，彌補了傳統圖像差分方法的不足，構造了一個具有平移、大小和旋轉不變性的特徵不變量用於識別目標，並研究出一種動態極值匹配方案。
  16. An algorithm for matching the esprit ' s estimation of two - dimensional angle by using twice svd and once schur is proposed. using two row uniformity sensor - arrays and adding one sensor, the algorithm decomposes the array twice and exploits rotational invariance properties of signal space, so that both angles may be computed via matrix pencil method, and these estimates are automatically paired. simulation results are presented to verify the efficacy of the proposed algorithm

    首先針對esprit演算法對窄帶源進行二維doa估計存在測向冗餘的情況，提出了一種改進演算法，該演算法利用子陣信號數據矩陣中包含的信號空間的旋轉不變性質，藉助于矩陣束方法求解出信號的二維到達角，並且利用兩次奇異值及一次schur分解從而實現了esprit二維doa估計參量的自動配對； 2
  17. Within one single source echo, both doa and time - delay can be estimated simultaneously by this algorithm via high - resolution rotational invariance technique and high - resolution time - delay frequency ( tdf ) technique. the esprit - tdf algorithm has features of low computation, good precision, and high resolution both in doa and time - delay. it is suitable for multiple source exact localization

    該方法利用高分辨旋轉不變技術和高分辨時延頻率技術，可在單次目標回波內實現多目標信號的方位和時延參數的高分辨聯合估計，具有運算量小、分辨能力強、估計精度高等特點，能夠對多目標進行高分辨精確定位。
  18. Fft is applied to data and spectra peak search is done, then using the data near the spectra peaks to compute two 4th - order cumulants matrix to form rotational invariance matrix pencil which the esprit algorithm can be applied to

    對采樣數據進行fft和譜峰搜索，截取譜峰附近數據構造一路信號的四階累積量矩陣和二路信號的互四階累積量矩陣，構成了一對esprit演算法所需要的旋轉不變矩陣束。
  19. Because the signals of the target reflections are coherent, the reconstructing matrix algorithm which uses the time - shift correlation method is studied. not only has it the good ability to solve the coherence problem, but it also reduces the computation because of the time - shift correlation instead of the eigenvalue decomposition

    由於雷達系統中目標回波具有相關性，必須考慮解相干處理，所以研究了利用時移相關去噪的矩陣重構演算法，該演算法具有較好的解相干能力，且用時移相關去噪免去了特徵分解去噪過程，可直接使用esprit演算法求解旋轉不變關系，簡化了過程，減小了計算量。
  20. First, the theories of the music algorithm and the esprit are presented here. conventional algorithms are limited by the array configuration, and a constructing vectors algorithm, which uses the correlative function of array data, is proposed in this paper. this algorithm is n ' t restricted within the special array configuration, and it is also very steady

    在介紹了多重信號分類（ music ）演算法和旋轉不變技術（ esprit ）的基本原理后，考慮到常規的演算法都受到陣列形式的限制，本文在esprit演算法的基礎上，提出了一種利用陣元數據的相關函數構造向量的演算法，該演算法不要求特定陣列結構，且有一定的穩健性。
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