|
|||||
|
|
| 湍流大气中含镜反射点漫射目标的电磁散射 | |
| 引用本文： | 郭立新,吴振森. 湍流大气中含镜反射点漫射目标的电磁散射[J]. 电波科学学报, 2000, 15(1): 7-12 |
| 作者姓名： | 郭立新 吴振森 |
| 作者单位： | 西安电子科技大学理学院,西安,710071 |
| 摘 要： | 基于广义惠更斯 -菲涅尔原理 ,研究了波束入射到湍流大气时 ,考虑漫射目标上包含一个或多个镜反射点 (该镜反射点半径远小于束宽 )时的散射统计特性 ,导出了散射场的互相关函数、平均强度、强度协方差和强度方差的公式 ,讨论了镜反射点的半径和离轴远近对归一化强度方差的影响。 |
| 关 键 词： | 湍流大气 漫射目标 电磁散射 强度方差 |
Electromagnetic scattering from a diffuse target containing multiple glints in the turbulent atmosphere |
|
| GUO Li-xin,WU Zhen-sen. Electromagnetic scattering from a diffuse target containing multiple glints in the turbulent atmosphere[J]. Chinese Journal of Radio Science, 2000, 15(1): 7-12 | |
| Authors: | GUO Li-xin WU Zhen-sen |
| Abstract: | The extended Huygens Fresnel principle is utilized to make analysis of the received intensity for laser beam propagation through the turbulent atmosphere. For a diffuse target containing multiple glints(the glint is small compared with the illuminating beam), the effects of the turbulence on the statistical parameters such as the mutual coherence function, the mean intensity, covariance and variance of the scattering intensity are studied in detail. The influence of radius of the glint and the distance off the incident beam on these parameters are discussed. |
| Keywords: | Turbulent atmosphere Diffuse target Electromagnetic scattering Variance of intensity Covariance of intensity |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |