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Calibration method of phase distortions for cross polarization channel of instantaneous polarization radar system

Journal of Systems Engineering and Electronics 2010年第2期21卷 211-218页

作者： huanyao dai yuliang chang dahai dai yongzhen li xuesongwang School of Electronic Science and Engineering National University of Defense Technology Changsha 410073 R R. China

A novel polarimetric calibration method for new target property measurement radar system is presented. Its applica- tion in the real radar system is also discussed. The analysis indicates that instantaneous polarization radar （[PR） has inherent cross-polarization measurement error. The proposed method can effectively eliminate this error, and thus enhance the polarization scattering matrix （PSM） measurement precision. The phase error caused by digital receiver＇s direct IF sampling and mixing of two orthogonal polarization channels can be removed. Consequently, the inherent error of target polarization scattering measurement of the instantaneous polarization radar system is well revised. It has good reference value for further ploarimetric calibration and high practical application prospect.

关键词： instantaneous polarization radar target scattering ma- trix (PSM) polarization measurement polarimetric calibration.

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Research on instantaneous polarization radar system and external experiment

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Chinese Science Bulletin 2010年第15期55卷 1560-1567页

作者： WANG XueSong li yongzhen dai huanyao chang yuliang dai dahai MA liang liU Yong Perception Laboratory of Institution of the Integrated Electronic Information System College of Electronic Science and Engineering NationalUniversi~ of Defense Technology Changsha 410073 China

Instantaneous polarization radar can obtain radar target polarization scattering matrix (PSM) by using single pulse *** system overcomes the defects of inter-pulse interval polarization measurement radar and accurately measures the PSM of the moving *** the capabilities of detection,anti-jamming and target identification can be *** present paper reports the first international self-developed instantaneous polarization radar experimental system and,by using this system,the measurement experiments of target polarization characteristics are *** results show that the performance of target instantaneous polarization measurement by different waveforms is *** basic and common problems in polarization scattering feature extraction and recognition domain are solved.

关键词：瞬态极化雷达系统实验系统极化散射极化雷达目标识别检测能力准确测量

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