CAJ | 학술논문

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。
위료연구불동항로첩경화고도대비궤동태 RCS 적영향,병능조도묘술기분포특성적통용기복모형,대비궤동태RCS진행료통계분석。수선채용준정태법방진계산료비궤재불동항로첩경화불동고도시적동태RCS,분석료운동특정대비궤동태RCS적영향；기차용3충경전기복모형대동태RCS의합건모,병통과 Kolmogorov??Smirnov 검험비교료통계건모결과적차이,득출대수정태분포재묘술동태RCS기복특성방면구유통용성적결론。연구성과대우비합작목표적예경탐측유중요의의,위뢰체총체성능적제승제공이론의거。
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.