运动特征对飞机动态RCS分布特性的影响分析  

An Analysis of the Impact of Movement Feature on Aircraft Dynamic RCS Statistical Characteristics

作　　者：王大朋[1] 张晨新[1] 庄亚强[1] 

机构地区：[1]空军工程大学防空反导学院,西安710051

出　　处：《空军工程大学学报（自然科学版）》2015年第4期19-23,共5页Journal of Air Force Engineering University(Natural Science Edition)

摘　　要：为了研究不同航路捷径和高度对飞机动态RCS的影响,并能找到描述其分布特性的通用起伏模型,对飞机动态RCS进行了统计分析。首先采用准静态法仿真计算了飞机在不同航路捷径和不同高度时的动态RCS,分析了运动特征对飞机动态RCS的影响;其次用3种经典起伏模型对动态RCS拟合建模,并通过Kolmogorov-Smirnov检验比较了统计建模结果的差异,得出对数正态分布在描述动态RCS起伏特性方面具有通用性的结论。研究成果对于非合作目标的预警探测有重要意义,为雷达总体性能的提升提供理论依据。In order to study the influence of different course short-cut and height on the dynamic RCS of air- craft and find out the universal model which can describe the dynamic RCS, the dynamic RCS of aircraft is statistically analyzed in this paper. By using a quasi-static analysis method, the dynamic RCS of aircraft is simulated at the different course short-cut and height, and the influence is analyzed respectively. Three sta- tistical fluctuation models are used to match the RCS statistic data and the difference between different course short-cut and height, and the difference of the modeling results are compared and inspected by Kol- mogorov-Smirnov test. The goodness-of-fit test results show Log-normal distribution is a universal distri- bution to describe the dynamic RCS beyond the limitation of course short and height. The results of this paper are of significance to the early warning and detection of non-cooperative target and provide a theoretic support to the advance of radar＇s function.

关 键 词：航路捷径 高度 动态RCS 统计特性 拟合优度检验 

分 类 号：TN955[电子电信—信号与信息处理]