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polarization characteristics and controllability mechanism of passive scattering elements

Journal of Systems Engineering and Electronics 2023年第2期34卷 342-349页

作者： GUO Jie YIN Hongcheng MAN Liang LI Xin Science and Technology on Electromagnetic Scattering Laboratory Beijing 100854China Beijing Institute of Environmental Features Beijing 100854China

polarization feature is one of the important features of radar targets,which has been used in many *** this paper,the grid models of some typical foreign moving targets are constructed on the simulation platform,such as glider,cruiser,fixed wing aircraft,and *** electromagnetic scattering characteristics of the moving platforms under the incidence of circular polarization waves are *** typical polarization characteristics which the orthogonal and in-phase components have in the echoes are analyzed and *** on the polarization scattering matrix(PSM)theory,from the point of view of the physical reproduction,the technical status quo that the existing technical approaches are difficult to realize the passive simulation of polarization characteristic of the target is *** solve this problem,combined with the vector synthesis law,the realization mechanism of controllable polarization characteristic of target echoes is proposed,the analytical expressions of polarization control matrix and polarization ratio are deduced,and the controllability of polarization ratio feature in the case of circular polarization is verified by simulation calculation.

关键词： polarization characteristic physical reproduction passive scattering element controllability mechanism radar feature simulation

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polarization Measurement of Auroral Kilometric Radiation by INTERBALL-2 Satellite

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Wuhan University Journal of Natural Sciences 1999年第1期4卷 66-72页

作者： Zhao, Zhengyu Xie, Shuguo Shi, Xinqing Lefeuvre, F. College of Electronic Information Wuhan University Wuhan China LPCE/CNRS ORLEANS Cedex 02 France

Preliminary analyses of low and high resolution data are presented from the polar plasma waves measured on board INTERBALL 2 satellite in three frequency bands: ELF(5 1000 Hz),VLF(1 20 kHz)and LF(20 260 kHz). The propagation and polarization characteristics of the Auroral Kilometric Radiation (AKR) emission are estimated and studied. The obtained result shows that R X and L O modes of AKR emission just above source regions are found. The propagation characteristics are also determined: wave normal directions weakly oblique or quasi parallel to the earth magnetic field direction.

关键词： INTERBALL 2 satellite AKR polarization characteristic

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