The effects of meteor trails scattering on a back scattering beyond - light - of - sight radar detected distance and probability of detection are creatively calculated in theory . it is practicable worth for analyzing the performance of the electronic systems 本文第一次从理论上研究了流星余迹散射对电子系统性能影响，这些结果对研究突发通信系统和超视距雷达系统等电子系统的性能都有一定实用价值。
Some numerical results presented in this paper indicate the effect of symmetric correction is close to transmitted correction when imaging for object surface and non - thick and non - dense objects , however , the former supports back scattering imaging which is not supported by the latter 计算机仿真的结果表明，在对物体表面或密度较低的物体进行成像的情况下，对称校正的效果接近于透射校正，但它可以用于背散射成像，这是透射校正所无法实现的。
This paper has studied the mean attenuation , scattering , and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution , and that those physical quantities are changed with different variance , expectation and wave lengths of incident electromagnetic wave 本文研究旋转轴方向分别在平面内和空间中随机取向呈正态分布时的小旋转椭球粒子群的平均衰减截面、平均散射截面、平均后向散射截面等微波散射特征，以及这些物理量随轴向分布期望、方差及入射电磁波波长的变化。
It is also found by comparing with different mean cross sections that there is similar variability for the mean attenuation and scattering cross sections as a function of the different variance , expectation and the wave lengths , but there is much difference for the mean scattering and back scattering cross sections especially when the rotatory axes are oriented randomly in normal distribution in oxy plane or oyz plane and 3d space 还对比各种平均截面可知：对于平均衰减截面、平均散射截面两者随方差、期望及波长有着相似的变化规律；但平均散射截面、平均后向散射截面之间，有着很多的不相同，特别在旋转轴在oxy平面、 oyz平面内和在空间oxyz内随机正态取向时的情形。
By driving expressions and using the method in numerical integration , the results of numerical calculations are analyzed , discussed and contrasted with different conditions , and they showed that there are evident differences in the mean attenuation , scattering , and back scattering cross sections of oblate spheroid particles when the variance is so small that it is near to zero namely it is the same as the rotatory axes are parallel with one direction and when h - polarized and v - polarized incident waves happened . these differences are depended on the relative differences in the average orientation of rotatory axes and the polarized directions of incident wave 通过公式推导和数值积分计算并对结果做了讨论和分析，对比各种情况表明：扁椭球粒子群在方差很小接近为0时，与粒子群旋转轴一致取向的情况相同，入射波水平极化和垂直极化时的平均衰减截面、平均散射截面、平均后向散射截面有明显的不同，这决定于旋转轴平均取向和入射波极化方向的相对差异。
