[数值]A Fast Physical Optics (FPO) Algorithm for Double-Bounce Scattering

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 52, NO. 1, JANUARY 2004 205 {[*_HAy7  
A Fast Physical Optics (FPO) Algorithm for YYW70k:  
Double-Bounce Scattering
id'#s  
Amir Boag, Senior Member, IEEE and Eric Michielssen, Fellow, IEEE DA~ELje^j  
Abstract—The fast physical optics (FPO) method for computing BH a>2N  
back-scattered fields over ranges of aspect angles and frequencies V0i$"|F+E  
is extended to encompass double-bounce scattering. Computations 2s%M,Nb  
are performed within the framework of the physical optics w-Fk&dC69  
approximation appropriate in the high-frequency regime. The UULL:vqq  
proposed algorithm is directly applicable to fixed angle bistatic Sw'?$j^3  
configurations and a variety of double scattering settings. The 4&fnu/,Z  
method comprises two steps: 1) decomposition of the scatterer IOl"Xgn5  
into subscatterers and computation of the scattering amplitudes [hbp#I~*[  
of all pairs of subscatterers and 2) interpolation, phase correction, F DX+  
and aggregation of the scattering amplitude patterns of all
d?Cl04  
subscatterer pairs into the pattern of the entire scatterer. The wgrOW]e  
proposed method is especially suited for generating synthetic W^Y0>W~  
data for radar imaging simulations.
IIiN1 Lu,5  
!yrHVc  

未注册仅能浏览部分内容，查看全部内容及附件请先 登录 或 注册