三维地理信息系统的核爆光冲量一次反射分析方法  

Twi-Reflection Analysis Method Based on 3D GIS for Ray Impulse of Nuclear Blast

作　　者：刘晓红[1,2] 王伟力[1] 

机构地区：[1]海军航空工程学院,山东烟台264000 [2]中国航海图书出版社,天津300450

出　　处：《火力与指挥控制》2013年第2期87-89,93,共4页Fire Control & Command Control

摘　　要：核武器目标毁伤区域内的光冲量与地形有很大关系,现有的光冲量的半经验半理论的计算公式,都排除了地形影响而讨论裸露平地条件下的光冲量规律。针对上述问题,提出了基于不规则三角网地形模型的一次反射方法来半定量分析地光冲量规律。该方法首先采用离散化的思想,以规则格网对地形数据进行采样,计算由采样点反射的光线对观测点的光冲量值;根据采样结果拟合得出整个目标毁伤区的光冲量规律。模拟和分析结果表明,该方法可以充分反映地形对光冲量规律的影响。In the target damage region of nuclear weapons, ray impulse has large relationship with the terrain, but the existing semi-theoretical and semi-empirical formulas are calculating ray impulse without considering the effect of the terrain, and the results given by these formulas are under the condition of bareness plain. In allusion to above problems, the twi-reflection analysis method is proposed, this method can semi-quantitatively analyzes the ray impulse on the basis of irregular triangulated network. According to the discrete theory, this method uses the grid to sample the terrain data, to compute the ray impulse of the ray reflected by samples on the observed point, and fits out the ray impulse of the target damage region on the foundation of the data of samples. The results of simulation and analysis have proved that this method could express the effect of the terrain on the ray impulse.

关 键 词：光冲量 地理信息系统 一次反射分析 

分 类 号：TJ9[兵器科学与技术—武器系统与运用工程]