The Historical Resultant Theory and The Scientific Outlook on Development are consistent in essence,with the former serving as the philosophical foundation of the latter,and the latter being the new and modern form of...The Historical Resultant Theory and The Scientific Outlook on Development are consistent in essence,with the former serving as the philosophical foundation of the latter,and the latter being the new and modern form of the former.Thorough analysis and deep understanding of the dialectical relationship of the two theories contributes a lot to promoting China's localization of Marxism and to building a harmonious socialist society,both theoretically and practically.展开更多
首先用基于几何绕射理论的GTD(Geometrical theory of diffraction)模型来精确描述雷达目标的高频电磁散射特性;同时,提出一种可应用于目标识别的散射中心特征提取快速算法:基于传播算子(Propagator)的多重信号特征算法(PM-MUSIC)。其...首先用基于几何绕射理论的GTD(Geometrical theory of diffraction)模型来精确描述雷达目标的高频电磁散射特性;同时,提出一种可应用于目标识别的散射中心特征提取快速算法:基于传播算子(Propagator)的多重信号特征算法(PM-MUSIC)。其核心思想是利用传播算子法快速计算出噪声子空间,取代了原MUSIC方法中利用特征值分解获取噪声子空间的矩阵分解步骤。通过计算量的比较,说明PM-MUSIC算法较原MUSIC方法有效提高了运算效率。最后,仿真实验表明,PM-MUSIC算法在快速估计的基础上,仍具有良好的精度和较高的分辨率,可有效地提取以边缘绕射等为主要散射形式的隐身目标的散射中心。展开更多
文摘The Historical Resultant Theory and The Scientific Outlook on Development are consistent in essence,with the former serving as the philosophical foundation of the latter,and the latter being the new and modern form of the former.Thorough analysis and deep understanding of the dialectical relationship of the two theories contributes a lot to promoting China's localization of Marxism and to building a harmonious socialist society,both theoretically and practically.
文摘首先用基于几何绕射理论的GTD(Geometrical theory of diffraction)模型来精确描述雷达目标的高频电磁散射特性;同时,提出一种可应用于目标识别的散射中心特征提取快速算法:基于传播算子(Propagator)的多重信号特征算法(PM-MUSIC)。其核心思想是利用传播算子法快速计算出噪声子空间,取代了原MUSIC方法中利用特征值分解获取噪声子空间的矩阵分解步骤。通过计算量的比较,说明PM-MUSIC算法较原MUSIC方法有效提高了运算效率。最后,仿真实验表明,PM-MUSIC算法在快速估计的基础上,仍具有良好的精度和较高的分辨率,可有效地提取以边缘绕射等为主要散射形式的隐身目标的散射中心。
