Patent
Rapid calculation method for cavity electromagnetic scattering properties
TLDR
In this paper, a rapid calculation method for cavity electromagnetic scattering properties was proposed by means of an overdetermined equation obtained through back scattering calculation when an adaptive cross approximation algorithm (ACA) was used for compressing a cavity, a matrix equation was established in a mode that compressing is carried out while calculating, a cavity all-directional scattering distribution coefficient was given through a small-scale low-order vector array obtained through compressing, then, a scattering coefficient, obtained in a distribution iteration multiplying mode, of a target under different observation angles is given, backward RCS isAbstract:
The invention discloses a rapid calculation method for cavity electromagnetic scattering properties. By means of an overdetermined equation obtained through back scattering calculation when an adaptive cross approximation algorithm (ACA) is used for compressing a cavity, a matrix equation is established in a mode that compressing is carried out while calculating is carried out, a cavity all-directional scattering distribution coefficient is given through a small-scale low-order vector array obtained through compressing, then, a scattering coefficient, obtained in a distribution iteration multiplying mode, of a target under different observation angles is given, backward RCS is obtained, and rapid scattering iterative calculation of a complex cavity target is achieved. The rapid calculation method is high in adaptability and calculation precision, the iterative calculation efficiency and calculation capability of the cavity target are greatly improved, and engineering achievement is easy.read more
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References
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Journal ArticleDOI
Fast monostatic radar cross-section computation for perfectly electric conducting targets using low-rank compression and adaptive integral method
Zhi-Qing Lü,Xiang An +1 more
TL;DR: In this paper, the adaptive integral method (AIM) was used to calculate the monostatic radar cross-section (RCS) of arbitrarily shaped three-dimensional perfectly electric conducting objects.
Patent
Electromagnetic scattering analysis method of target with cavity on the basis of moment method and parabolic equation
TL;DR: In this article, an electromagnetic scattering analysis method of a target with a cavity on the basis of a moment method and a parabolic equation is presented. But the method is limited to the case of a single target.
Patent
RCS conversion method based on scattering center matrix
Liang Zichang,Gao Wei +1 more
TL;DR: In this paper, an RCS conversion method based on a scattering center matrix is proposed, which consists of adopting a moment method or an iterative physical optical method to obtain the approximation relation between an induction source and an exposure field according to a set target rough geometric model, and setting the scattering center conversion matrix between the exposure field and the RCS with a target to be measured comprising an undetermined coefficient.
Patent
Mixed analysis method for electromagnetic scattering of cavity containing medium target
TL;DR: In this paper, a mixed analysis method for electromagnetic scattering of a cavity containing a medium target is presented, which comprises the following steps that a cavity body part containing the cavity target is filled to be solid metal, a target discrete model after filling is established, and a matrix equation is constructed.
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