雷达极化理论可视化仿真研究

Visual Simulation of Radar Polarimetry

分析了完全极化、部分极化和瞬态极化理论的基本内涵,依据面向对象程序设计的思想,以Stokes矢量为内核,对涉及到的极化信息处理函数进行了封装和继承,设计了一套用于雷达极化信息处理的科学计算工具箱。给出了完全极化、部分极化、瞬态极化、窄/宽带目标极化特性类之间的设计关系,并基于NI Measurement Studio开发环境,对雷达极化理论进行了可视化仿真。仿真系统可以提供诸如正交极化、共轭极化、交叉极化、极化变基、五种极化描述子、最佳极化和极化叉等二维和三维极化视图的生动显示。

The fundamentals of the completely polarized, partially polarized, and instantaneous polarization theories were analyzed. Based on the design idea of objected-oriented framework, and using Stokes vector as kernel member variable to derivate and integrate the functions, an integrated toolkit specified for radar polarization information processing was developed. The class relationships between complete polarization, partial polarization, instantaneous polarization, and narrow/wide band targets were analyzed. To display the visual effects, a demonstration system was also developed based on NI Measurement Studio environment. The system has the capability of two-dimensional and three-dimensional polarization visualization, such as the visualization of orthogonal polarization, conjugate polarization, cross polarization, polarization basis transformation, five polarization descriptors, optimal polarization, and polarization fork, etc.