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作者机构:Natl Univ Def Technol Changsha 410073 Hunan Peoples R China Delft Univ Technol NL-2628 CD Delft Netherlands
出 版 物:《INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION》 (国际天线与传播杂志)
年 卷 期:2015年第2015卷第Pt.3期
页 面:340704.1-340704.1页
核心收录:
学科分类:0810[工学-信息与通信工程] 0808[工学-电气工程] 08[工学]
基 金:National Natural Science Foundation of China [61201330 61490690 61490694]
主 题:TRANSMITTING Theoretical analysis required precision planar phased array polarimetry
摘 要:This paper presents a theoretical analysis for the accuracy requirements of the planar polarimetric phased array radar (PPPAR) in meteorological applications. Among many factors that contribute to the polarimetric biases, four factors are considered and analyzed in this study, namely, the polarization distortion due to the intrinsic limitation of a dual-polarized antenna element, the antenna pattern measurement error, the entire array patterns, and the imperfect horizontal and vertical channels. Two operation modes, the alternately transmitting and simultaneously receiving (ATSR) mode and the simultaneously transmitting and simultaneously receiving (STSR) mode, are discussed. For each mode, the polarimetric biases are formulated. As the STSR mode with orthogonal waveforms is similar to the ATSR mode, the analysis is mainly focused on the ATSR mode and the impacts of the bias sources on the measurement of polarimetric variables are investigated throughMonte Carlo simulations. Some insights of the accuracy requirements are obtained and summarized.