天线极化轨道的概念修正及物理内涵研究

Research on Polarization Tracks and the Physics Meanings Based on Antenna Variable Polarization

雷达变极化技术是当前极化雷达发展的关键技术之一;而极化轨道在变极化技术中是个重要的概念,很多相关的应用研究也多以此概念为前提。针对目前圆型极化轨道概念的误区,从严格的数理推导出发,定义了γ、极化轨道,给出了更完善的极化轨道概念,扩充了其物理内涵,并指出了极化轨道约束的变极化器实现途径,为后续的目标局部最优极化、极化信号的优化接收以及目标散射能量最优化等提供了新的研究视角。

Radar variable polarization technology is currently one of the key techniques; and the concept of polarization tracks is very important, which offers preconditions for many subsequent studies. Considering the imperfection of the existing circular polarization track concept, the paper presents an improved concept of polarization tracks, extends its physical meanings based on strict mathematical formula derivations, and provides an approach to realize polarization track restriction using variable polarizer. This investigation provides new points of view for subsequent researches such as local optimal polarization of target, optimized receiving of polarized signals and optimization of target scattering energy, etc.