目標截面積 的英文怎麼說

中文拼音 [mùbiāojiémiànjī]
目標截面積 英文
target cross section
  • 目 : Ⅰ名詞1 （眼睛） eye 2 （大項中再分的小項） item 3 [生物學] （把同一綱的生物按彼此相似的特徵分為幾...
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 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...
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 目標 : 1. （對象） target; objective 2. （目的） goal; aim; destination
  • 面積 : [數學] area
  1. Complete air piston pump contains pneumatic motor and piston pump, the ratio of piston area of pneumatic motor and plunger ' s sectional area of piston pump is transforming times of pump pressure ; the higher times, the more pressure can deliver higher viscosity fluid, and achieve the delivery aim

    完整的氣動柱塞泵包含有氣動馬達與柱塞泵兩部分，氣動馬達中的活塞面積與柱塞泵活塞的截面積比值，就是泵壓力轉換的倍數；愈高的倍數就能以愈大的壓力輸送愈高黏度的流體，達到輸送的目標。
  2. 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。
  3. The paper includes four sections followed here : the first section studies the modeling of signals of pulse doppler radar seeker, and establishes a radar signal simulation model, including radar emitting signal model, receiving signal model, receiving echo signal model, clutter model, noise model, sum channel directional pattern of antenna model, difference channel directional pattern of antenna model, sheltering model, rcs model, glint noise model, etc. the second section studies signal processing of pulse doppler radar seeker, and establishes radar signal processing mathematical model and data processing mathematical model for simulation, including windowing, doppler filtering, envelope demodulation, pdi, cfar, centering, velocity tracking, angle tracking, a - b filtering, etc. the third section studies the modeling of modified proportion guiding, and establishes guiding model, then dynamic simulation results is provided

    論文的主要工作包括四部分：第一部分研究了脈沖多普勒雷達導引頭的信號建模問題，建立了雷達信號模型，主要包括：發射信號模型、接收信號模型、目標回波信號模型、雜波模型、噪聲模型、和差通道天線方向圖模型、遮擋因子模型、接收機噪聲模型、目標雷達截面積統計性模型、目標角閃爍模型等。第二部分研究了脈沖多普勒雷達導引頭的信號處理模式，建立了信號和數據處理模型，主要包括：加窗和多普勒濾波、包絡檢波、檢波后積累、頻域cfar處理、速度定心、速度跟蹤、角跟蹤、 ?濾波等，然後給出了信號處理流程。
  4. Abstract : a optimum design method in which the optimum shapes and dimension of cross sections are selected to minimize the structural volume and get the global optimum solution, is presented first by means of the method of the genetical gorithm. the numerical results show that the model is valid

    文摘:利用遺傳演算法，首次提出「取剛架截面形狀和尺寸規格為設計變量，結構體積為目標函數，求全局最優解」這一優化模型.通過對各個計算環節的研究，確立了可行的計算方法，編制計算程序，並以算例證明該方法的有效性
  5. ( 3 ) a tactic of the optimization design was adopted, which was achieved by adding the variable and the complex conditions step by step. first, the optimization of the poles ’ positions will be obtained. second, the optimization of the poles ’ area based on the results of the first step can be reached

    （ 3 ）針對浮動壁結構模型，採用遞進式分階段優化的策略，運用fga - fem對浮動壁結構的支桿布局、支桿截面積和壁板厚度進行多目標優化研究。
  6. 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。
  7. This paper established optimization mathematical models with the structural reliability constraints based on the structural reliability analysis. in this paper, truss and beam structures are studied as the research objects and the structural elements cross sectional areas as the design variables

    在結構可靠性分析的基礎上，構建了以桿、梁截面積為設計變量，使結構重量極小化為目標函數，同時具有應力和位移可靠性約束的優化設計數學模型。
  8. Based on finite element and general reliability analysis, the structural optimization design model based on probability is constructed, which refers the cross - section areas as the design variables, refers the minimum of the frame ’ s weight as the object with the reliability restricts of stress and displacement

    在結構廣義可靠性分析的基礎上，構建了以桿截面積為設計變量，使結構重量極小化為目標函數，同時具有應力和位移廣義可靠性約束的優化設計數學模型，並將其應用於天線結構的優化設計之中。
  9. The essence of stealth technique is reducing rcs in different fields using corresponding methods in order to achieve stealthy aim ; whereas achieve anti - stealthy aim

    雷達隱身技術的本質是從不同領域用相應的方法來減少目標反射截面積，從而達到隱身的目的；反之是達到反隱身的目的。
  10. Speaking of the fight against triad activities, mr tang said the force had strengthened intelligence network with the mainland, macao, and overseas law enforcement agencies to enhance the capacity to address triad - related crimes. police would also target triad personalities and activities, including youth gangs, and mounted strategic undercover operations to deal a severe blow to the sources of triad income

    談及打擊黑社會活動方面，他表示警方會強化警隊情報網路，與內地澳門及海外執法機構交換情報，提高對付涉及黑社會罪行的能力，並會針對目標人物及活動，包括童黨，以及進行策略性的臥底行動，採取積極措施堵截黑社會收入來源。
  11. 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。
  12. Agat claims that it is effective at ranges of up to 13 km against a target with a 5 m2 radar cross - section

    阿加特設計局聲稱這種導引頭可以有效地在超過13公里的距離上對付雷達截面積在5平方米的目標。
  13. The objective function is the cost of anti - slide pile " s per meter ; the constraint conditions are the strength of anti - slide pile " s normal section and inclined section, the ratio of reinforcing design and the size of section in the design code ; the design variables are the height of section, the area of reinforcement and the amount of hoop. and the optimization model is solved by 0. 618 method

    本文提出的優化設計方法，以樁單位長度的總造價為目標函數，以規范對單筋梁的正、斜截面強度，配筋率及截面尺寸等要求為約束條件，以樁截面高度，抗彎縱筋面積，抗剪箍筋數量等為設計變量，來建立優化模型，並用0 . 618法進行求解。
  14. The optimal model of truss structure is established, in which the cross sectional areas of bar are taken as design variables, the structure weight is taken as objective function. in the process, the reliability of structural displacement and bar stress and the fundamental frequency are taken as constraint functions. from the engineering practice, all the reliability constraints, which are implicit generally with the design variables, are equalized and transferred to the conventional explicit constraints

    本文將主要考慮桁架結構的優化問題，首先建立數學模型，即以桁架的橫截面積為設計變量、以重量最小為優化目標，位移、應力等可靠性及基頻為約束條件；最後，從工程實際出發，對結構系統的可靠性隱形約束進行等價顯化處理，使之轉化為常規的橫截面積優化問題。
  15. The main works and results are as follows : 1. by use of one order multiple scattering theory, light scattering and reflection by a single coating layer is analyzed. the variance of radiation intensity, bidirectional reflection distribution function ( brdf ) and laser radar scattering cross section with coating layer parameters is given, with the effect of rough contrast on bidirectional reflection distribution function

    本文主要研究了單層和多層塗層結構介質的光散射特性，以及近場條件下復雜目標對激光波束的散射，其主要工作如下： 1 、採用一階多重散射近似理論分析單層塗層對光波的散射和反射，計算並討論了輻射強度、雙向反射分佈函數和單位面積激光雷達散射截面隨塗層結構參數的變化規律，數值分析了粗糙基底對雙向反射分佈函數的影響。
  16. To simulate return accurately, we set several models as follows : target radar cross section ( rcs ) model, target antenna modulating model, target wave modulating model, noise model, clutter amplitude distributed model and power spectrum distributed model. each of these models has been analyzed and simulated

    分別建立了目標截面積起伏模型、目標天線方向圖調制模型、目標波形調制模型、噪聲模型、雜波幅度分佈和功率譜分佈模型，對每種模型的建立進行了分析和模擬。
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