飞行器RCS仿真建模方法研究  

Simulation Modeling Methodology of Aircraft's RCS

作　　者：李舰[1] 段文义[1] 徐彦明[1] 

机构地区：[1]防空兵指挥学院,河南郑州450052

出　　处：《计算机仿真》2006年第12期54-56,89,共4页Computer Simulation

摘　　要：雷达散射截面RCS(R adar C ross Section)是基于平面波照射下目标各项同性散射的概念。飞行器RCS的仿真建模在飞行器的仿真过程中既是重点,也是难点。结合雷达模拟器研制过程中对飞行器雷达散射截面仿真建模的实际需求,在建立简化飞行器外形模型和六自由度运动姿态计算的基础上根据目标外形建模特点,将飞行器分解为机头、机身、机翼三种类型的散射体进行研究。针对各类部件的不同特性,综合运用了几何光学法、物理光学法和绕射理论计算飞行器RCS。这种理论建模方法简单,物理概念清晰,计算量不大,能满足仿真实时性要求。Simulation Modeling of Aircraft＇s RCS is both important and difficult in the simulation process of aircraft. This thesis researches aircraft＇s RCS by dividing aircraft into three kinds of scatter body - prow, airframe and wing. According to different characteristics of every parts, aircraft＇s RCS is calculated by using GO, PO and Circling Theory synthetically. This modeling methodology is simple, can meet the demand of real - time simulation.

关 键 词：雷达散射截面 目标部件分解法 几何光学法 物理光学法 绕射理论 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]