Analysis of near - field distribution and cross - polarization radiation pattern cavity - backed microstrip patch antenna on a uniaxial substrate 單軸各向異性背腔式微帶貼片天線的表面縫隙場分布及交叉極化方向圖分析
Methods of measurement for equipment used in digital microwave radio transmission systems - measurements on terrestrial radio - relay systems - cross - polarization interference canceller 數字微波無線電發射系統使用設備測量方法.地面無線電中繼系統測量.交叉極化干擾消除器
Methods of measurement for equipment used in digital microwave radio transmission systems . part 2 : measurements on terrestrial radio - relay systems . section 11 : cross - polarization interference canceller 數字微波無線電發射系統使用設備的測量方法.第2部分:陸地無線電中繼系統的測量.第11節:交叉極化干擾消除器
Methods of measurement for equipment used in digital microwave radio transmission systems - part 2 : measurements on terrestrial radio - relay systems - section 11 : cross - polarization interference canceller 數字微波無線電發射系統使用設備的測量方法.第2部分:地面無線電中繼系統的測量.第11節:交叉極化搟擾消除器
Based on the theory of rain - induced rain - induced cross - polarization discrimination ( xpd ) , the two - order small argument approximation for rain - induced xpd is developed , and a new model for predicting rain - induced xpd is proposed based on this approximation . the comparisons of this new model with other models and experiments data show that some improvement has been obtained with this model , especially for different polarizations 基于雨致交叉極化理論,提出了雨致交叉極化的二階小變量近似方法以及新的雨致交叉極化預測模式,與其它模式和實驗數據比較表明,該模式更能反映波的極化特征,較其它模式有一定的改進。
The main contributions of the dissertation are as following : ( 1 ) according to the theories of co - polarization and cross - polarization scattered characteristics , co - polarization and cross - polarization scattering characteristics of typical targets have been analyzed detailedly in this paper . a mechanism is described that rough surface tilted ( symmetrical distribution scene ) conduces to estimate terrain slope . so , we can estimate an elevation outline of symmetrical distribution scene without any experiential knowledge 本文的主要貢獻可歸納為以下五點:山廠村拈人學博十論義2001 ( l ) 4十日標的共極化和交義極化敞射理論,詳細分析了典型11杯的共極化和交義極化敞射特性,網明傾斜的均勻分布場景(粗糙表而)的共極化敞射特性4i利十提取地形方位向高度輪廓的機jrp 。