[天线]A fast physical optics (FPO) algorithm for high frequency scattering

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 52, NO. 1, JANUARY 2004 197 W1J7$  
A Fast Physical Optics (FPO) Algorithm for [VP~~*b  
High Frequency Scattering .oo>NS  
Amir Boag, Senior Member, IEEE c =i6  
Abstract—A novel algorithm referred as the fast physical optics th*E"@  
(FPO) for computing the back-scattered field over a range of aspect 1%6}m`3  
angles and frequencies is presented. The computation is performed g@lAk%V4  
in the framework of the conventional physical optics approximation D}Lx9cL  
appropriate for the high frequency scattering regime. The proposed FeFH_  
algorithm is, also, directly applicable to fixed angle bistatic ?wx|n_3<:  
configurations and a variety of single scattering formulations. The +P<LoI  
method comprises two steps. First, a decomposition of the scatterer {GiR-q{t  
into subdomains and computation of the pertinent scattering -gV'z5  
characteristics of each subdomain. Second, interpolation, phasecorrection `p%&c%*A  
and aggregation of the scattering patterns of the dGz
Z_Vf  
subdomains into the final pattern of the whole body. A multilevel ]Z\.Vx  
algorithm is formulated via a recursive application of the domain "L" 6jT  
decomposition and aggregation steps. The computational structure <tg>1,C  
of the multilevel algorithm resembles that of the FFT. The proposed : LI*#~'Ka  
method is especially .. bXiT}5mJU  
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好东西啊！！！ 真是牛人！！！

好东西啊，真是太感谢楼主了。