通过建立流星余迹模型 ,研究了流星余迹的散射特性 ,并计算了流星余迹的散射对雷达作用距离和发现概率等性能的影响 .该计算结果对分析雷达试验结果和研究雷达性能有一定的理论指导意义 ,为进一步研究流星余迹散射对雷达系统性能的影响提出了一种理论计算方法 The meteoroid trajectory model is established to study the scattering characteristics of the meteor trail and to calculate the influence of the meteor trail scatter on the radar range and the probability of discovery.The calculation results have certain effects on the analysis of the radar test results and the research of the radar performance Theoretical significance of the theory, to further study the meteor impact of the scattering on the radar system performance of a theoretical calculation method