水平極化波 的英文怎麼說

中文拼音 [shuǐpíngjíhuàbō]
水平極化波 英文
horizontal polarized wave
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 平 : Ⅰ形容詞1 （沒有高低凹凸 不頃斜） flat; level; even; smooth 2 （高度相同; 不相上下） on the same l...
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 水平 : 1. （跟水面平行的） horizontal;level2. （達到的高度） standard; level
  • 極化 : [物理學] polarization; overpotential; overtension; polarity極化器 polarizer; 極化強度 intensity o...
  1. This thesis in combination with the actual engineering demand, analyzes and designs a horizontally polarized triangular - grid planar phased array antenna, which composed of open - ended rectangular waveguide, the main steps of analyzing and designing are as follows : 1. at first, taking no account of mutual coupling among the array elements, classical electromagnetic theory is used to establish analyzing model for finite array, and initial value parameters of the array structure which basic satisfy the design index are got, these parameters provide reference for subsequent analyzing and design

    本論文結合實際工程需要，分析和設計了一個採用水平極化方式的三角形柵格矩形波導相控陣天線，其主要步驟如下: 1 .首先，在不考慮陣列單元間互耦影響的情況下，採用經典電磁理論建立有限陣列分析模型，通過分析得到了基本滿足設計指標的陣列結構參數，為后續的分析、設計提供參考。
  2. 3. after the parameters of the array structure are got, simulation software, such as cst microwave studio, cts design studio and ansoft hfss, are used to design the power dividers for the radiation units in the horizontally polarized direction of the array. these power dividers adopt structure of coupling slots in the narrow side of main rectangular waveguides, in which the narrow side of the main waveguide and the broadside of secondary waveguides are crossed at locations of each slot

    3 .在得到滿足指標要求的陣列結構參數后，採用cstmicrowavestudio 、 ctsdesignstudio和ansofthfss等電磁模擬軟體對陣列在水平極化方向的行饋功分器進行模擬設計，該陣列的行饋功分器採用波導窄邊單縫耦合饋電結構。
  3. Symmetries are existed in oxy and oyz planes for horizontally and vertically polarized waves, i. e. one ' s h - polarized case is the same as the other v - polarized one. while the expectations of the rotatory axes oriented in oxz plane are complement, one ' s h - polarized case is the same as the other v - polarized one

    平面oxy和平面oyz對于兩種偏振極化入射波時存在著對稱性，一者的水平極化與另一者的垂直極化情況相同；而oxz平面內旋轉軸的平均取向的期望互余時，一者的水平極化與另一者的垂直極化時的情況相同。
  4. 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
  5. However, df pre - processing is not required in a interferometer direction finder. it only makes use of the phase relations or differences of sensors disposed at different position. azimuth and elevation are caculated from the phase differences or displayed directly on a crt drived by the voltage or current from the phase differences

    干涉儀測向不必進行測向信號預處理而是直接或間接求取在空間上分開的傳感器上感應電勢之間的相位關系，即干涉相位差，方位角或仰角是直接由干涉相位差計算得到，或將兩基線正交的天線陣的干涉相位差轉化為驅動電壓（電流）分別加到crt陰極顯示器的垂直偏轉線圈和水平偏轉線圈，模擬顯示出來波方位，干涉儀測向為典型的相位測向方法。
  6. 2 ) radar incidence angle and surface roughness correction : to make radar incidence correction and eliminate the surface roughness effects, a wide range of surface parameters ( soil moisture, surface rms height, correlation length, incidence angle ) was input to the ibm model to simulate the effect of surface roughness and radar incidence angle on the sensitivity of soil moisture to the radar backscattering coefficient. a simple model was established to simulate the effects of incidence angle and surface roughness. 3 ) establishment of soil moisture change inversion model : according to a modified ibm model simulation results, the bare surface backscattering coefficients can be expressed as a funtion of the dielectric component for a given surface roughness when the surface slope greater than 2. 0, which is valid for most nature surface : in above equation, r0 is the surface reflectivity at normal incidence

    本研究中，首先利用基於微波輻射傳輸方程的微波植被模型和積分方程（ iem ）模型模擬了各種地表土壤水分含量情況下，植被覆蓋、地表粗糙度（包括地表均方根高度和相關長度） 、雷達入射角對c波段（頻率4 . 7ghz ）水平極化（ hh ）雷達後向散射系數的影響，在此基礎上，建立模型消除了植被覆蓋、地表粗糙度、及雷達入射角對雷達後向散射的影響，利用多時相50m解析度radarsatscansar雷達後向散射系數圖像反演得到了地表土壤水分變化模式信息。
  7. By driving expressions and using the method in numerical integration, the results of numerical calculations are analyzed, discussed and contrasted with different conditions, and they showed that there are evident differences in the mean attenuation, scattering, and back scattering cross sections of oblate spheroid particles when the variance is so small that it is near to zero namely it is the same as the rotatory axes are parallel with one direction and when h - polarized and v - polarized incident waves happened. these differences are depended on the relative differences in the average orientation of rotatory axes and the polarized directions of incident wave

    通過公式推導和數值積分計算並對結果做了討論和分析，對比各種情況表明：扁橢球粒子群在方差很小接近為0時，與粒子群旋轉軸一致取向的情況相同，入射波水平極化和垂直極化時的平均衰減截面、平均散射截面、平均後向散射截面有明顯的不同，這決定於旋轉軸平均取向和入射波極化方向的相對差異。
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