空間相干性 的英文怎麼說

中文拼音 [kōngjiānxiānggānxìng]
空間相干性 英文
space coherence
  • : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
  • : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
  • : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
  • : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
  • : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
  • 空間 : space; enclosure; room; blank; interspace
  • 相干 : 1 (多用於否定句或疑問句) have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
  1. The equations of motion governing the axisymmetric elastic deformation of finite orthotropic cylindrical shells, involving the effect of transverse shear and rotational inertia, are derived. by applying the reverberation method, the displacement and the resultant forces of the shell in the phase space are expressed. then the transient waves in the finite orthotropic cylindrical shell subjected to the axisymmetric impact are obtained by using inverse laplace transforms. furthermore, the transient solutions are decomposed to the generalized ray integrals and computed numerically

    分析了計及剪切變形和轉動慣的有限長正交異圓柱殼中彈瞬態波的傳播問題,採用回傳矩陣法,在中給出了位移和內力的表達式。再利用laplace逆變換,得到正交異圓柱殼受軸對稱沖擊作用時彈瞬態波解,然後將其分解為若廣義射線積分之和,並用數值方法求解之。
  2. Chapter 5, short but is the core of this paper. the flatter impact shock generated by a homogenized beam by isi with strict image relay, and a round - shaped impact shock generated by isi without strict image relay, is compared. it reveals the importance of isi with strict image relay in planar shock generation

    第五章重點介紹了激光產生飛片的實驗,分別給出了利用誘導非( isi )激光均勻化技術,在有嚴格的像傳遞和沒有嚴格的像傳遞條件下激光驅動飛片產生沖擊波的特徵,表明isi均勻化技術和像傳遞在產生平面沖擊波中的重要
  3. Second, we compute the self - impedance through cavity modal theory and mutual impendance based on reaction theory respectively. then the generalized impedance matrix that reflects the effect of mutual coupling is formed. at last, the effect of mutual coupli ng on 2 - d doa estimation algorithms is investigated and two efficient methods of mutual coupling compensation are proposed

    本文首先對兩種二維doa估計演算法? ssm法和二維酉esprit法的能進行了比較,用域平滑演算法解決了源的二維doa估計;其次運用腔模理論計算微帶天線的自阻抗,用反應原理計算微帶天線的互阻抗,進而形成計入互耦影響的廣義阻抗矩陣;討論了互耦對二維doa估計的影響,提出了兩種互耦補償的方法。
  4. Furthermore, the range of measurement of it was pointed out. all the analysis shows that our crsi 1il can be used to measure the spatial mid and low frequency wavefront distortion. 5. based on our crsi and algorithm, the phase modulation characteristic of an lcslm was measured

    五、利用環路徑向剪切涉儀共光路、雙光束涉的特點,全場準確測量了液晶光調制器的位調制特,並且利用它的位調制特實現了臺階位板畸變波前的補償,由此證明了液晶光調制器可用於控制波前畸變。
  5. By applying the theory and method of geological anomaly, it is focused on the analysis of the characters of major geological anomalies and their effect of mineralization in daye - jiurui region. the analysis result shows that the basement fault anomalies control a few major large hidden batholiths and their associated orefields ; that the anomalies of cover structure confine most cu - au deposits and fe - cu deposits within their scope ; that the geochemical anomalies and lithofacies - paleogeographical anomalies are major geological factors leading to trataboundness of some cu - au deposits ; that the anomalies of rock operties provide the favorable chemical and physical conditions for the ore - forming process, including the seepage, circulation, convergence and deposit of ore - bearing hydrothermal solution ; that the anomalous ctive stage of mesozoic magmatite is almost consistent with the major mineralization epoch of the fe, cu deposits, and the structure of multi - levels, and the zoning in magmatic system determine the spatial distribution of the mineralization system. then, based on the above analysis, a comprehensive variate, geological combination entropy, is brought forward for reflecting the complex degree of the combination of geological ore - controlling factors. after circumscribing the anomalies of geological combination entropy, the relations between the anomalies and ore deposits are determined

    從地質異常的角度,重點分析了大冶九瑞地區主要地質異常的特徵及其對成礦的影響.由分析可知:基底斷裂異常控制了本區若重要規模較大的隱伏巖基及伴生礦田,而蓋層構造異常控制銅金礦床和鐵銅礦床的位置;地層的地球化學異常和巖古地理異常是造成一些銅金礦床層控的主要地質因素;蓋層的巖異常為含礦熱液的滲流、循環、聚集和礦質沉澱等一系列成礦作用提供了有利的物理和化學條件;中生代巖漿巖的異常活動期也是本區主要的鐵銅成礦期,巖漿巖系統的多層分枝和分帶結構控制了本區成礦系統的三維分佈.在上述分析的基礎上,構置了地質組合熵作為反映控礦地質因素組合系統結構復雜程度的綜合變量,並圈定出組合熵異常,由此確定了綜合地質異常與礦床的關系
  6. The computer simulations indicated that the weighted subspace fitting technique in the beamspace possessed a significant advance of 2 - d estimation for coherent sources

    計算機模擬表明,在波束內的加權子擬合技術具有良好的信源二維波達方向估計能。
  7. 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

    本論文在激光光束波前畸變檢測和控制上進行了新的探索,主要就位調制環路徑向剪切涉儀以及它對波前畸變的檢測和液晶光調制器及其對中頻段波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、根據標量衍射理論,結合低頻波前畸變的高斯隨機位分佈模型,研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦的影響,並採用描述中頻段波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。
  8. We provided a new method that tried to transform the whole image to featured space and facilitated identification and self - elimination of disturbance according to the hue and luminosity features of eyes of human being. we gave the definition and description of the transformed space. a wavelet - texture filter was designed to distill space - transform - based feature of the image itself was executed

    根據人眼對顏色、亮度等不同的敏感以及圖像本身的質,仿人眼變換域分析圖像形成光學濾色鏡效果,減少復雜背景顏色和似形狀的多重擾,並以此定義和表徵變換域特徵,給出變換域小波紋理車牌特徵,成功提取車牌字元區域; 2
  9. We first design the construction modules of serially concatenated quantum convolutional code. and then design the corresponding code - coding gate - array. in quantum error avoiding code, we first unified the definitions of decoherence - free subspace, and then proved that all these definitions are equivalent

    在量子避錯碼方面,統一了各種無消的定義,證明了各種定義之的等價,同時提出一種利用群論方法構造無消的簡單方案。
  10. The results indicated that as the intensity of sward cleavage increased, elymus nutans and other plants that had high requirements in soil aeration and resource space presented an increased competitive edge and the species that had low requirements in soil aeration and resource space presented an opposite picture ; low - intensity sward cleavage could help increase species diversity to a certain extent, but the diversity index appeared to decline as a whole as the cleavage intensity increased ; the effects of sward cleavage on functional groups of the vegetations showed in such manner as e. nutans - represented grasses increased in their composition with the intensity of sward cleavage raised, and sedges and forbs decreased in their compositions with the intensity of sward cleavage raised ; sward cleavage showed a significant improving effect on primary productivity of the meadows and was capable of increasing the proportion of quality - grass biomass to the total plant biomass ; sward cleavage could be independently employed as an effective measure to rehabilitate and improve alpine - meadow grasslands and thus played a basic and key role in the technical combination aiming at establishing hay fields characterized by e. nutans

    結果表明:垂穗披堿草等對土壤通透和資源要求較高的物種,競爭力隨劃破強度的增加而上升,而對土壤通透和資源要求對較低的物種則反;輕度劃破擾對提高物種豐富度具有一定的促進作用,但多樣指數則總體上表現為隨劃破強度的增加而呈下降的趨勢;劃破擾對植被功能群的影響表現為以垂穗披堿草為代表的禾草類組分隨擾強度的增加而顯著上升,莎草類和雜類草組分隨擾強度的增加而顯著下降;劃破擾對草地初級生產力的提升具有顯著的促進作用,且可顯著增加植物總量中優質牧草的比重;劃破擾可獨立作為高寒草甸類草地恢復與改良的有效措施,在定向培育垂穗披堿草型割草場的技術組合中具有核心和基礎的地位。
  11. Furthermore, the dual integral equations can be reduced to the fredholm integral equations of the second kind and solved by numerical procedure. at the end of this chapter, the numerical analysis for dynamic interaction characters of saturated half - space / layered ground and circular plate is evaluated. finally, the solutions for 3 - d dynamic responding of elastic rect

    基於橫觀各向同飽和半/有限層地基非軸對稱波動方程的通解,按混合邊值問題建立飽和地基與彈圓板非軸對稱動力互作用的積分方程,求解積分方程后得到橫觀各向同飽和地基上圓板非軸對稱動力響應的一般解,並分析了飽和地基上圓薄板和中厚板振動的若特徵。
  12. Under rayleigh fading channel, we also simulated and compared ber in siso 、 simo and mimo systems. secondly, based on careful study the ber and the channel capacity under white noise channel under mpsk modulation when the channel is rayleigh fading, we duduced the expressions of stbc ’ s ber and channel capacity under rice and nakagami fading. and also analysed the performances through numerical simulation using matlab to testify the exactitude of the dudeced expressions. finally, there exists an error floor of stbc through studying on its performance on time - selectiv fading channel. we analysed the reason and proposed two new decode combination scheme to eliminated the error floor and the performance of stbc on time - selective fading channel is improved. and also compared the two scheme ’ s complication and snr gain

    這些結果大部分是閉式結果,能比較準確地衡量時塊碼的能,並對不同衰落的能做了互比較,其結果對時塊碼的實際應用具有一定的指導意義。實際的通道是時變的,分析了時塊碼在時選擇衰落通道中產生誤差地板效應的主要原因是存在碼擾( isi ) ,在此基礎上提出了兩種能消除誤差地板效應的譯碼合併方案,並對這兩種方案的復雜度和信噪比增益進行了比較。
  13. There are mainly two type of algorithms used for spatial spectrum estimation : one is those based on bayesian maximum likelihood method, like the ml ( maximum likelihood ) algorithm, maximum entropy method and etc., the others are based on the spatial decomposition or projection of correlation matrix, this kind of algorithm include vector characterization method, music ( multiple signal classification ) algorithm, projection matrix method, etc. music is a classical spatial spectrum estimation algorithm that has a super high resolution and is widely used today, however, it cannot estimate doa of signals that are correlated

    譜估計的演算法大致分兩大類:一是基於極大似然估計和最大后驗概率估計統計理論的演算法,包括:極大似然估計法( ml ) 、最大熵法等;另一類是基於對協方差矩陣進行子分解或投影的演算法,包括:矢量特徵法、多重信號分類法( music ) 、投影矩陣法等。其中, music法是一種經典的譜估計主流演算法,具有超強的分辨能,但它無法實現對信號進行測向分辨。
  14. 7. based on our crsi and algorithm and double lcslm, an adaptive optical hardware system which c & n be used to model arbitrary complicated wavefront and the compensation of the wavefront can be accomplished was built. and according to the characteristic of a crs interferogram of a step wavefront produced by an lctv, the pixel - level calibration of this system is implemented

    七、採用已建立的位調制環路徑向剪切涉儀及其波前重建演算法,和位調制持已知的兩塊液晶光調制器,創建了一套用於模擬產生任意畸變波前並加以檢測和反饋控制的自適應光學硬體系統,並通過臺階波前對該系統實現了像素級校準。
  15. We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone

    摘要本文從時域、頻率域、三維域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬參數,包括對振幅、波峰位時似系數、主頻帶能量、二維梯度和系數等,提出了礦山工程裂隙破碎帶三維地震屬的去噪平滑、歸一化、關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法,並用實例說明了該方法的應用效果。
  16. Seismic response analysis of a long - span cable - stayed bridge under random seismic excitations with spatial variations, including travelling effect, incoherence effect and local site effect, was made with stochastic method

    摘要以南京第二長江大橋南漢橋為例,採用隨機振動分析方法研究了地震動的變化特,包括行波效應、部分效應以及局部場地效應對大跨度斜拉橋地震響應的影響。
  17. From the geometric limit of light source, the paper discusses the arrangement for geometric size of non - coherent light source which affects the visibility of coherent pattern and gives the essential of the spatial coherence

    摘要從普通光源線度的幾何約束出發,較詳細地討論了非光源線度及其涉裝置參數的設定對其涉效果(視見度)的影響,進一步論述了空間相干性的物理本質。
  18. It is shown that the spectral splitting can take place in the near field, which is dependent on the spatial correlation and bandwidth of the spectral source and position parameters

    研究表明,在近場會有光譜分裂出現,光譜分裂與光源的空間相干性和源光譜的譜寬以及位置參數有關。
  19. The basic concepts of second - order coherence theory in describing wavefields are introduced. these concepts are the cross - spectral density function and spectral degree of coherence in the space - frequency domain, and the mutual coherence function and the complex degree of coherence in the space - time domain

    介紹了二階關理論中描述光場質的基本概念,包括-時域中的互關函數、復度和-頻率域中的交叉譜密度函數、光譜度。
  20. 3. by investigating the two - atom dipole amplitude - squared squeezing and two - mode second - power : h - squeezing in a system of a two - mode vacuum field interacting with two coupled atoms, the influences of the initial atomic coherence and dipole - dipole interaction on the two types of squeezing have been discussed. the relation between the two types of squeezing has also been revealed

    中文摘要3 .研究了雙模真場與兩個禍合二能級原子互作用系統的雙原子偶極振幅平方壓縮和雙模光場二次方h壓縮,探討了原子的初始及原子偶極互作用對這兩種壓縮的影響,並揭示了原子偶極振幅平方壓縮和雙模光場的二次方h壓縮的聯系。
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