舰载电子战飞机RCS特性数值模拟  

Numerical simulation on the RCS of carrier-based electronic warfare aircraft

作　　者：岳奎志[1,2] 贾忠湖[2] 姬金祖[1] 苏珉[2] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191 [2]海军航空工程学院飞行器工程系,山东烟台264001

出　　处：《系统工程与电子技术》2014年第5期852-858,共7页Systems Engineering and Electronics

基　　金：国家重点基础研究发展计划(973计划)(61320);总装'十二五'预研项目资助课题

摘　　要：对舰载电子战飞机的雷达散射截面(radar cross section,RCS)特性进行研究。分析作战剖面下雷达波对于机体的俯仰角,建立舰载电子战飞机A型号和B型号的三维CATIA模型,基于物理光学法和等效电磁流法,使用RCSPlus软件,数值模拟在UHF、X和S雷达波段下舰载电子战飞机的RCS特性,研究电子战条件下飞机被雷达发现概率,并对仿真结果进行数理统计分析。研究结果表明:对低空隐身飞机设计时,要降低俯仰角在-7.30°至14.78°之间飞机的RCS值,就可以降低距离26km以外、高度8km以下的所有雷达的探测距离;舰载电子战飞机RCS特性A型号与B型号相比,在X波段下,头向RCS减小了40.95%;舰载电子战飞机A型号在与无电子战时相比,被X波段雷达探测到距离缩短了63.24%。The radar cross section （RCS）character of carrier-based electronic warfare aircraft （CEWA）is studied.The pitch angle of radar waves to the body under combat section is analyzed.By using CATIA,3D models for the CEWA of type A and type B are built.Based on the physical optics and the equivalent electro-magnetic flow method,the RCSPlus software is used to numerically simulate the RCS character of CEWA under UHF-band,X-band and S-band.The detection probability of aircraft by radars is studied in the condition of electronic warfare.And the simulation results are analyzed with the mathematical statistics method.The results show that in low-altitude stealth aircraft design,reducing the RCS of the aircraft with the pitch angle between-7.30°and 14.78°means reducing the detection distance of all the radars 26 km away and 8 km below;under the X-band,the RCS of type A reduces by 40.95% compared with type B of CEWA;and in electronic warfare, the detection distance by the X-band radar of type A reduces by 63.24% compared with that in non-electronic warfare.

关 键 词：飞机总体设计 电子战 舰载机 隐身 物理光学法 

分 类 号：V221[航空宇航科学与技术—飞行器设计]