逆散射法 的英文怎麼說

中文拼音 [sǎnshè]
逆散射法 英文
backscattering technique
  • : Ⅰ形容詞1 (方向相反) contrary; counter 2 [數學] inverse; converse Ⅱ動詞1 (抵觸; 不順從) go aga...
  • : 散動詞1. (由聚集而分離) break up; disperse 2. (散布) distribute; disseminate; give out 3. (排除) dispel; let out
  • : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
  • : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. First introduces briefly the characteristic of microwave, the history of mamt, its characteristic and trends. then explains the contents of one port reflection parameters, the way to measure them and something to pay attention to. at the end we illustrates how to get the reversible two ports s matrix using eight - point method

    首先概述了微波的特點,接著介紹了微波自動測量技術的發展歷史、特點及其今後發展的趨勢,然後說明了二埠網路反參量的內容、測定方、需要注意的問題以及可二口網路參量的八點測量,重點介紹了八點圖解的方
  2. First, in virtual of identification of flaws is a typical of in - verse problems, proceeding from time - harmonic electromagnetic maxwell ' s equa - tion and helmholtz equation, the uniqueness and existence of direct scattering problems including the numerical algorithms of diverse of boundary conditions is given. second, the uniqueness and existence of inverse scattering problems and the theory of ill - posed integral equation are briefly looked back upon. finally, indicator function method for boundary identification is set up under all kinds of boundary conditions for inverse scattering of homogenous and inhomogenous objects, meanwhile, the proof of possibility for near - field measurements and nu - merical simulation are given

    由於缺陷的識別是一類典型的反問題,因而首先從時諧電磁maxwell方程和helmholz方程出發,具體地闡述了求解正問題的有關方,包括各種(夾雜)邊界條件下的數值解,就解的存在性唯一性給予了肯定的回答;隨后對問題的理論作了簡短的回顧,包括解的唯一性以及非線性不適定積分方程的處理等;然後對均勻介質和非均勻介質的問題建立了在各種邊界條件下的邊界識別的指示函數方,鑒于近場數據獲得的重要性,對近場測試時邊界識別的方給予了相應的證明,並且實現了數值模擬。
  3. Since there exists ill - posedness in reconstructing velocity on the surface and reconstructing pressures in the field, this paper attempts to introduce an iterative regularization method to resolve such inverse problems

    由輻聲壓重構結構表面振動速度和聲場聲壓存在解的離病態問題,試圖利用一種迭代正則化方來解決此類問題。
  4. For two - spheres system, we present the concrete expression of the t matrix in such a system. and some numerical results obtained by this expression are compared well with experimental data

    在雙球粒子體系問題的研究中,用矩陣求的方,具體地給出了雙球粒子體系傳輸矩陣的表達形式。
  5. From mathematical models for inverse scattering in two dimensional inho - mogenous media including variable impedance, all kinds of probable mixed variable impedance boundaries and cracks, from interior and exterior trans - mission problems and radiation condition, ill - posed integral equation and indicator function method are formulated for the diverse of boundary iden - tification. it is shown that the kernel of the integral equation characters the boundary of scatterer, which is determined by solving it by virtual of regularity method, meanwhile, some numerical tests are given. 3

    在二維非均勻介質邊界識別的數學模型(包括一般的非均勻介質,正交各向異性介質,變阻抗介質,各種可能的混合變阻抗邊界問題)下,由內透問題和外透問題以及輻條件,推導了上述介質的邊界識別的積分方程和指示函數方,由於積分方程的核充分表徵了物的邊界,由此說明只要利用正則化方求解該積分方程,就可以確定物的邊界。
  6. From mathematical models for inverse scattering in two dimensional homoge - nous media including dirichlet, neumann, robin, all kinds of probable mixed boundaries and cracks, direct and inverse scattering are discussed, and ill - posed integral equation and indicator function method are formulated for the diverse of boundary identification. it is shown that the kernel of the integral equation characters the boundary of scatterer, which is determined by solv - ing it by virtual of regularity method, meanwhile, some numerical tests are given. 2

    在二維均勻介質各種邊界識別的數學模型(包括dirichlet , neumann , robin ,各種可能的混合邊界問題,裂紋問題)下,分別考慮了正問題和問題,推導了上述各種邊界識別的不適定積分方程以及指示函數方,由於積分方程的核充分表徵了物的邊界,由此說明只要利用正則化方求解該積分方程,就可以確定物的邊界,並給出了一些數值實驗。
  7. Moreover, the signal processing method of high range resolution based on inverse discrete fourier transform is analyzed. the synthetic high range resolution of the several scatters is simulated

    此外,本文還闡述了頻率步進信號的傅立葉變換合成距離高分辨的處理方,並對多點目標的合成距離高分辨效果進行了計算機模擬。
  8. The relating to methods based on the research on international and domestic electromagnetic wave ( elastic wave, acoustic wave ) for the identification of flaws are all - round viewed

    本文對國際和國內基於電磁波(聲波,彈性波)理論研究缺陷識別的有關方給予了全面的評述。
  9. Under wide - aperture, the anisotropy of scattering centers become evidence, in this paper, we propose a new algorithm based on sub - aperture and filtered back - projection algorithm to estimate the anisotropy of scattering centers in wide - aperture imaging

    然後針對中心方向特性提取問題,結合子孔徑思想和濾波投影演算提齣子孔徑濾波投影演算,模擬結果驗證了演算的有效性。
  10. For the effect of motion of target, a method of isar motion compensation based on scattering center tracking is used. for the difficulty of getting echo signal of bistatic isar of moving target, a method of simulating moving target using turntable data is used. finally the imaging results by using simulating data based on scattering center tracking show the effectiveness of the methods

    針對目標的運動對雙站合成孔徑雷達成像質量的影響,運用基於重心跟蹤的isar運動補償方來消除目標運動對成像質量的影響,並針對雙站isar運動目標回波獲取的困難,運用一種用轉臺數據模擬運動目標回波的方來獲得模擬數據,最後用模擬數據驗證了基於重心跟蹤的雙站isar運動補償的正確性。
  11. Regularization method study in ultrasound inverse scattering imaging

    超聲成像問題中的正則化方研究
  12. In my artice, positive scattering problem is solved by fdtd method and inverse scattering problem is sovled by genetic algorithm ( ga ) ga is a kind of searching method which simulates the normal evolution. in the solution of inverse problem convergence speed is significent and parameter setting has much effect on it

    在採用遺傳演算求解的問題時,收斂速度是非常重要的。不同的參數設置會影響到它的收斂速度和結果。因此參數的設置在遺傳演算中有很重要的作用。
  13. This method is called microwave imaging technique based on rga under frequency domain. after comprehending the principle of the microwave imaging and rga, we present a novel imaging method for the first time. it is a full - time - domain algorithm based on rga, fdtd technique is applied to solve direct problem while the rga is applied to solve inverse problem

    在對微波成像的機理和實數遺傳演算的工作機制有了初步了解之後,本文首次提出用時域遺傳演算來求解導體目標的成像問題,即用時域有限差分來求解問題,而問題還是採用實數遺傳演算,得到了基於實數遺傳演算的全時域的微波成像技術。
  14. In succession, tini thin film is deposited on single - crystal silicon substrate using optimized parameters utilizing sputtering, and its transformation temperature ( a * ) is 72 ? indicated by dsc curve after being annealed in an ultra - high vacuum ( uhv ) chamber. in addition, the composition of the silicon - based tini film was analyzed by an energy dispersive x - ray spectroscopy ( eds ), and the ti content in the film is approximately 51at %

    按照改進的工藝參數,在單晶硅襯底上濺-淀積了tini薄膜,並進行了超高真空退火, dsc測得其馬氏體相變峰值溫度為72 ,利用能譜分析( eds )技術測得其ti含量約為51at ,通過對非晶tini薄膜與單晶硅襯底之間的界面進行eds及x線衍( xrd )分析,發現在用大功率( 2000w )直流磁控濺制備tini薄膜過程中,存在ti 、 ni與si的雙向擴,發生了界面反應,並有三元化合物ni _ 3ti _ 2si生成。
  15. ( 2 ) under hirota condition, by making use of the inverse scattering transform, the femtosecond dark n - soliton solution for the hirota equation is obtained, and the dark one - and two - soliton solutions are presented in explicit forms. interesting physical applications arise from the characteristics of the grey two - soliton solution

    ( 2 )在hirota條件下,利用給出飛秒暗孤子解的表達形式,從中得到飛秒暗孤子間無相互作用的傳輸條件,並通過數值分析方討論飛秒暗孤子的穩定性。
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