整体式惯性粒子分离器雷达散射特性数值仿真  

Numerical Simulation of Radar Cross Section for Inertial Particle Separator

作　　者：乔松松[1] 杨青真[1] 杨涛[2] 陈立海[1] 

机构地区：[1]西北工业大学动力与能源学院,陕西西安710072 [2]沈阳发动机设计研究所,辽宁沈阳110015

出　　处：《计算机仿真》2012年第8期35-39,264,共6页Computer Simulation

摘　　要：为了探究整体式惯性粒子分离器(IPS)的雷达散射特性,利用物理光学迭代法(IPO),编制了整体式粒子分离器的RCS计算程序,发展了一种改进的高效遮挡关系判断算法,并对程序的计算精度进行了校验。对不同雷达波长下,不同构型整体式粒子分离器的前向雷达散射特性进行了计算和分析比较。结果表明,随着雷达波长的增大,IPS的雷达散射面积减小;IPS分流器径向位置对重点方位角度范围内的雷达散射面积(RCS)有一定影响,并为改善IPS的雷达散射特性提供了参考依据。In order to investigate radar scattering characteristics of inertial particle separator （IPS） , the iterative physical optic （IPO） method was used for programming code to calculate radar cross section （RCS）. A high per- formance shadowing judgment algorithm was developed and validated by different experiments. Base on this, the Ra- dar Cross Section （RCS） of different IPS configurations under different radar wave length were calculated and com- pared. The results show that the RCS decreases with increase of the inject Radar wavelength. Movement of splitter in IPS along radial direction can influence the RCS in the scope of important attitude angles. The conclusions provide a technical basis for efficiently improving radar scattering characteristics of IPS.

关 键 词：惯性粒子分离器 物理光学迭代法 数值仿真 雷达散射截面 

分 类 号：TN955[电子电信—信号与信息处理]