用修正矩阵束算法和二维旋转不变技术(2D-ESPRIT)提取基于 GTD 模型的目标二维散射中心参数-modified matrix pencil method and two dimensional (2D) ESPRIT method are proposed in this paper to extract the scattering centers based on GTD model to avoid these drawbacks. Simulations show that

针对手写体汉字识别问题，选取笔段和笔划作为基元，分析手写体汉字的组成规律和变形规律，提出了两种汉字结构模型：笔段中心点模型和笔划关系矩阵模型，以及基于模型的分类依据和识别方法。根据所提出的模型，采用两级分类方案构造汉字识别系统 粗分类采用笔段中心点法，细分类采用笔划关系矩阵法。-Aiming at the problem of handwritten Chinese character recognition, selecting pen and stroke as primitives, an