典型文献
A novel method for radar echo simulation based on fast-constructed database
文献摘要：
This paper presents a novel method for fast calcula-tion of radar echo in near-field regions after the equivalent source has been computed by method of moments(MoM).An easy-to-access near-field database(NFDB)is established,which is built on the auxiliary tetrahedral meshes surrounding the near-field regions of interest.The near-fields calculation(NFC)of ar-bitrary observation points can be expressed explicitly via the NF-DB.An efficient matrix compression scheme named random sampling-based butterfly factorization(RS-BF)is proposed to speed up the construction of NFDB.With this approach,each group of O(N)elements in the database can be calculated through one fast matrix-vector multiplication operation that has a computational complexity below O(Nlog2N).The proposed me-thod can avoid time-consuming point-by-point NFC of the tradi-tional methods.Several numerical examples are presented to demonstrate the accuracy and efficiency of this method.In par-ticular,the echo simulation of a missile-target encounter exam-ple is presented to illustrate its capability for practical applica-tions.
文献关键词：
中图分类号：
作者姓名：
HUANG Xiaowei;SHENG Xinqing
作者机构：
Institute of Radio Frequency Technology and Software,School of Integrated Circuits and Electronics,Beijing Institute of Technology,Beijing 100081,China
文献出处：
引用格式：
[1]HUANG Xiaowei;SHENG Xinqing-.A novel method for radar echo simulation based on fast-constructed database)[J].系统工程与电子技术（英文版）,2022(01):72-79
A类：
NFDB,bitrary,Nlog2N
B类：
novel,radar,echo,simulation,fast,constructed,database,This,paper,presents,near,regions,after,equivalent,source,has,been,computed,by,moments,MoM,An,easy,access,established,which,built,auxiliary,tetrahedral,meshes,surrounding,interest,fields,calculation,NFC,observation,points,can,expressed,explicitly,via,efficient,matrix,compression,scheme,named,random,sampling,butterfly,factorization,RS,BF,proposed,speed,construction,With,this,approach,each,group,elements,calculated,through,one,vector,multiplication,operation,that,computational,complexity,below,avoid,consuming,tradi,methods,Several,numerical,examples,are,presented,demonstrate,accuracy,efficiency,In,par,ticular,missile,target,encounter,illustrate,its,capability,practical,applica,tions
AB值：
0.575625
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