散射中心 的英文怎麼說

中文拼音 [sǎnshèzhōngxīn]
散射中心 英文
scattering center
  • 散 : 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
  • 射 : 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） ...
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. Since the problem of feature extraction from 2 - d radar data can be approached as a parametric modeling and parameter estimation problem, the 2 - d type - discriminated geometric theory of diffraction based ( td - gtd ) model that discriminate between the localized and distributed scattering centers of the target is presented

    在對目標散射中心的建模與參數估計中，提出採用更貼近散射機理的、特徵含量更為豐富的二維散射中心模型?區分局域性與展布式散射中心類型的幾何繞射理論（ td - gtd ）模型。
  2. 2. a frequency extrapolation scheme is developed to effectively predict radar cross section using floating genetic algorithm based on the geometrical theory of diffraction ( gtd ) model. the threshold discrete fourier transform ( tdft ) is introduced for the data compression in angle domain

    在目標散射中心建模方面，我們將浮點型遺傳演算法（ fga ）應用於實際人工目標的gtd模型參數的抽取，利用所抽取的模型參數完成了雷達散射截面rcs的頻率擴展以及數據壓縮，並利用擴展的數據提高了距離解析度。
  3. Then, some typical scattering center estimation methods are lucubrated

    在白噪聲背景下，深入研究了幾種典型的散射中心估計方法。
  4. Those nonideal scattering centers make the imaging blur, but they also contain the feature of target

    這些非理想散射中心造成了圖像的模糊，但它同時也包含了目標的重要特性。
  5. The glint suppression using high resolution range profile under conical angle measurement is studied, the angle information in signal components of scatters are extracted and averaged to suppress the glint. nonlinear kalman filtering methods under near spherical coordinate are analyzed and used to get more accurate tracking

    研究了圓錐掃描測角體制下基於距離高分辨的角閃爍抑制方法，利用距離維高分辨像，提取強散射中心反射信號分量，在此基礎上估計出各個強散射中心的角度測量值，採用平均方法減少角閃爍對測角的影響。
  6. This method can save the space of memory and reduce the computation time. because only the parameters of scattering centers are stored and genetic algorithm is used to search for aspect angle, the method is very suitable for the employment in real - time and restrictive environment. in chapter 3, the architecture of mmw seeker is studied

    該方法以目標多散射中心理論為基礎，只需要存貯目標的三維散射模型參數，需要的存貯量較少；與常規的全姿態角匹配識別方法比較，基於目標散射模型的匹配識別方法，由於利用了遺傳演算法的全局尋優能力，計算量較小。
  7. It can cancel the harmonic phenomena along cross directions and deduce the cost of computation. in chapter four using the impulse characteristics of inciding wave, we test the energy peaks in the transient impulse response of radar targets

    本文第四章用能量峰概念和微分參數估計的方法，在時域研究了目標脈沖響應的特性，該方法可以分解出目標上不同散射中心的散射波。
  8. The method is demonstrated by using real data of airplane. the airplane isar image is evidently enhanced, and the physics - based feartures of scattering centers is gained by the method

    依此框架完成了對飛機目標isar圖像有效的增強處理，提取到了反映成像目標結構特徵的點散射中心集合。
  9. In this paper, we first classify the nonideal scattering centers to three kinds through analysis the assumption of ideal scattering centers model. they are dispersive scattering centers, glide scattering centers and anisotropic scattering centers. also we conclude that all of them make the image blur by research on their display on imaging

    通過概括理想點散射模型所包含的假設前提條件，限定出了模型失配的原因，提出了非理想散射中心的分類方法:把它們分為色散型散射中心、滑動型散射中心和各向異性散射中心，並分析了各種類型非理想散射中心在圖像域的表徵。
  10. In synthetic aperture radar ( sar ) and inverse sar ( isar ) imaging, most image algorithms are based on the model of standard scattering centers. but the scattering of targets is complexity, the standard scattering centers model cannot describe all scattering centers of target

    大部分雷達二維成像演算法都是基於理想散射中心模型的，而真實目標散射的復雜性使之無法滿足理想散射中心模型的假設條件，它包含了許多非理想的散射中心。
  11. Wide - band high - resolution radar can resolve a target into a number of scattering centers

    寬帶條件下，雷達目標被孤立成一系列的散射中心。
  12. The main contents and new ideas include : the scatter - center model is discussed

    其主要內容和創新之處如下: 1 、介紹用於微波成像的目標散射中心模型。
  13. In clutter condition, the parameter estimation algorithm which is no sensitivity to clutter is studied

    在雜波背景下，研究了對雜波種類不敏感的散射中心估計方法。
  14. The two - dimension relax algorithm which is used estimating the two - dimensional scattering center in clutter circumstance is studied

    在雜波背景下，研究了提取目標二維散射中心的relax演算法。
  15. Based on the multi scattering center theory, the frequency model describing electromagnetic scattering characteristics of target is developed

    首先從目標多散射中心理論出發，推演了描述目標散射特性的頻域散射數學模型。
  16. In modern radar applications, the research about distribution of main scatterers on the target is very important for target modeling and identification

    雷達目標散射中心分佈的研究是雷達目標特性建模與識別工作的一個重要部分。
  17. A new data compression technique, called the threshold discrete fourier transform ( tdft ) method, is proposed to efficiently compress the scattered field data from complex targets

    提出了閾值dft （ tdft ）演算法用於實現基於雷達目標強散射中心分佈的rcs數據壓縮。
  18. In chapter 3, under the wideband radar system, some parameter estimation methods of scattering center are studied in the white noise and clutter background

    第三章以寬帶階梯變頻雷達為研究背景，在白噪聲和雜波條件下，研究了提取目標強散射中心的參數估計方法。
  19. The backward scattering field of extended target is approximated as the synthesis of many strong scatter centers on target, and geometric optical method is used in establishing deterministic model of a aircraft in the paper, the model is used to evaluate the performance of frequency diversity in suppressing glint at last

    本文將復雜目標後向散射回波近似為目標上若干強散射中心回波的合成，結合幾何光學法得到了某種飛機目標的確定性模型，並用該模型評定頻率分集對角閃爍抑制的改善性能。
  20. 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

    然後針對散射中心方向特性提取問題，結合子孔徑思想和濾波逆投影演算法提齣子孔徑濾波逆投影演算法，模擬結果驗證了演算法的有效性。
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