雷達散射截面 的英文怎麼說

中文拼音 [léidásǎnshèjiémiàn]
雷達散射截面 英文
lrcs
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 達 : Ⅰ動詞1 （暢通） extend 2 （達到） reach; attain; amount to 3 （通曉; 明白） understand thoroughly...
  • 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） ...
  • 面 : Ⅰ名詞1 （頭的前部; 臉） face 2 （物體的表面） surface; top 3 （外露的一層或正面） outside; the ri...
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  • 散射 : [物理學] [電學] scattering; radio scattering; scatter; dispersion
  1. 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。
  2. In the end, the impedance matrix of any three - dimensional conducting object can be portioned into sub - matrices by the projection iterative method ( pim ), the surface current and rcs can be calculated with convergent iterations, the wide - band electromagnetic scattering characteristics of three - dimensional conducting objects are also analyzed with the asymptotic waveform evaluation technique

    最後應用投影迭代方法（ pim ）將三維導體目標的阻抗矩陣剖分成小矩陣，通過迭代計算出表面電流和雷達散射截面，並與漸近波形估計技術結合分析了三維導體目標的寬帶電磁散射特性。
  3. Application of photonic crystal in radar crosssection reduction of scattering on airplane canopy

    光子晶體在座艙罩雷達散射截面減縮中的應用
  4. In the research realm of the target identify, an important topic is to minish the laser radar cross section of the space target for target stealth. the laser radar probes a target is based on the target under the laser, the space and time distribute characteristic of the strength ? polarization and phasic of the laser scattering etc. to identify a target

    在目標識別研究領域有一個重要的課題是減小空間目標的激光雷達散射截面便於目標隱身。激光雷達探測目標是根據目標在激光照射下，激光散射的強度、偏振和相位等的空間和時間分佈特徵來識別目標，目標表面粗糙度是影響目標激光散射特性的重要影響因素。
  5. At present greco is regarded as one of the most valuable methods of radar cross section ( rcs ) computation in the high - frequency region. depending on these conditions, several researches have been completed in this paper : firstly, calculating rcs of complex conducting targets has been accomplished by greco method. the high - frequency rcs of targets are obtained through physical optics ( po ) and incremental length diffraction coefficients ( ildc ) respectively

    本論文做了以下研究工作：首先，實現了運用greco方法計算了高頻區理想導體復雜目標的雷達散射截面（ rcs ） ，分別應用了物理光學法（ po ）和增量長度繞射系數法（ ildc ）計算了目標的面元和棱邊的電磁散射，最後綜合面元與棱邊的散射效應得到目標的總rcs 。
  6. Abstract : the effects of airfoil geometric parameters on wing " s spacial and polarized scattering characteristics have been systematically revealed. the results of the study indicated that the calculating value of diffraction from trailing edge by using the formula of the straight wedge is very far from experimental results for vertical polarization, and the contribution of thickness of the trailing edge to scattering must be considered in the calculation. the scattering peak of leading edge depends only on radius of airfoil for horizontal polarization. but for vertical polarization, it depends on maximum thickness and the location of maximum thickness. engineering formulas for evaluating all scattering peaks were given in the paper. it is important for the design of low - rcs wing

    文摘:系統地揭示了翼形幾何參數對機翼的空間散射特性、極化散射特性的影響規律.研究發現，在垂直極化狀態下用理論尖劈公式計算機翼后緣繞射的計算結果與實驗結果相差甚遠.提出在垂直極化狀態下機翼后緣繞射的計算必須將后緣厚度考慮在內的見解.對於水平極化，前緣散射波峰只與前緣半徑有關；而對於垂直極化，前緣散射波峰與翼形最大厚度以及最大厚度位置有關.給出前後緣散射波峰的工程估算公式，為低雷達散射截面（ rcs ）機翼設計提供依據
  7. The kinematics model, kinetics model, infrared radiation model and radar cross section model of bomer and the kinematics and kinetics of infrared guided missile and radar guided missile are studied

    研究了轟炸機的運動學、動力學模型，轟炸機紅外目標輻射模型與雷達散射截面積（ radarcrosssection ， rcs ）模型。研究了紅外製導導彈與雷達制導導彈的運動學與動力學模型。
  8. ( 2 ). according to the system indices and requirements together with the technology characteristic, it researches the capture possibility of apt capturing system. then it introduces the common scan methods, such as raster, spiral, raster spiral, rose and lissajo. ( 3 ). it makes a detailed simulation analysis of the raster and spiral scan, analyze the connection between capture probability, capture time, system index at different capture resolution angle, capture range, vibration angle extent and terminal location distributing mean square deviation

    其中對幾個關鍵部分進行了詳細分析:計算了目標角反射器的激光雷達散射截面（ lrcs ）值，研究了qd與ccd對目標位置角度的計算方法和空間解析度; （ 2 ）根據系統指標和要求並結合現有國內技術特點研究了apt捕獲系統掃描的捕獲概率問題，然後分析了幾種常見的掃描方式:矩形（ raster ）掃描、螺旋（ spiral ）掃描，矩形螺旋（ rasterspiral ）掃描，玫瑰形（ rose ）掃描以及李薩如形（ lissajo ）掃描; （ 3 ）對分行掃描和螺旋掃描進行了詳細的模擬分析，分析了它們在不同捕獲分辨角、捕獲范圍、振動角振幅和終端位置分佈均方差時的捕獲概率、捕獲時間與系統常數之間的關系。
  9. The rcs of the smooth convex object based on the rational b zier surface

    曲面任意光滑凸體的雷達散射截面
  10. The rcs of the smooth convex object based on the rational b 233 ; zier surface

    曲面任意光滑凸體的雷達散射截面
  11. Electromagnetic scattering ; radar cross section ; stealth technique ; finite - difference time - domain method

    電磁散射雷達散射截面隱身技術時域有限差分方法
  12. The rotated parabolic equation method was presented to compute the bistatic radar cross section ( rcs )

    並提出了旋轉拋物線方程演算法，實現了目標任意角度雷達散射截面的快速計算。
  13. In chapter 1 the definition of rcs is introduced and discusses the recent development of the computational electromagnetics

    具體研究內容：第一章是本文的緒論，介紹了雷達散射截面的定義和計算方法的國內外進展。
  14. Chapter 5 describes the principles and the calculating methods of the incident plane - wave source and the radar cross section ( rcs )

    第五章說明的是平面波源的加入和雷達散射截面的計算，包括工作原理和實現方法。
  15. Numerical results are compared with that of the analytical solution, it was shown that the complexity of computation was reduced drastically without sacrificing much accuracy

    數值結果表明：標準拋物線方程演算法在計算目標雷達散射截面時具有較高精度，且計算速度大大提高。
  16. With the increasing development of radar cross section ( rcs ) reduction techniques, scattering from the slots or grooves have provided more important contribution to a target ' s scattering behavior

    隨著雷達散射截面（ rcs ）減縮技術的發展，縫隙對目標散射行為的影響日益突出。
  17. Only a fundamental model for infrared radiation and radar cross section of bomber is needed at this stage because the software needs a kind of expansion by users. 2

    由於軟體最終還需要用戶進行擴充，在現階段對于轟炸機紅外目標輻射模型與雷達散射截面積模型只需採用簡單的形式。
  18. Numerical results of the plate and plate with rivets varying with the incident angles show that the distribution of the rivets affects the rcs pat - tens in some directions

    數值計算了導體平板上有無鉚釘時的雷達散射截面隨入射角的變化，結果顯示當平板上有多鉚釘時，在一定的角度范圍內，鉚釘對雷達散射截面的影響非常明顯並且與鉚釘的分佈情況有關。
  19. The theory of the method of moments ( mom ) is introduced firstly in the thesis, and some basic functions and testing functions are discussed, then how to compute the radar cross sections of two - dimensional conducting objects are also introduced

    論文首先介紹了矩量法的基本概念及基本基函數和檢驗函數，其次闡述了矩量法求解二維導體目標雷達散射截面的步驟。
  20. The moment method is used to calculate the rcs of three - dimensional targets in this paper. these targets include conducting targets, dielectric targets and coat targets. triangular patches are used to model the surface of the target, then electric field integral equation ( efie ) and magnetic field integral equation ( mfie ) are built which satisfy the boundary conditions. the rwg vector base functions are used to denote equivalent electric current and magnetic current on the surface of the target. finally use the galerkin method ( rwg vector base functions are basis function and test function ) to transform integral equations into matrix equation. when obtain the equivalent electric current and magnetic current, we can calculate the scattering field and the rcs of the target

    本文利用矩量法計算了三維導體目標、介質目標、塗層目標的雷達散射截面。首先採用三角形面元對物體表面幾何形狀進行模擬，然後建立滿足邊界條件的電場積分方程（ efie ）和磁場積分方程（ mfie ） ，將物體表面的等效電磁流用rwg矢量基函數表示，最後利用伽略金法（ rwg矢量基函數既作為基函數又作為檢驗函數）將電磁場積分方程轉化為矩陣方程求解未知電磁流系數，得到了表面的等效電磁流后，可以計算散射場和目標的雷達散射截面。
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