Method for obtaining electromagnetic scattering properties based on subregion adaptive integration

A technology of electromagnetic scattering characteristics and acquisition methods, which is applied in the field of electromagnetic scattering characteristics acquisition based on sub-region adaptive integration, can solve problems such as low convergence speed and simulation efficiency, large number of auxiliary point currents, and large memory requirements

Active Publication Date: 2016-09-07
XIDIAN UNIV
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[0004] The purpose of the present invention is to provide a method for obtaining electromagnetic scattering characteristics based on sub-region adaptive integration, aiming to solve the problems of th

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  • Method for obtaining electromagnetic scattering properties based on subregion adaptive integration
  • Method for obtaining electromagnetic scattering properties based on subregion adaptive integration
  • Method for obtaining electromagnetic scattering properties based on subregion adaptive integration

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[0063] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0064] The application principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0065] Such as figure 1 As shown, the method for acquiring electromagnetic scattering characteristics based on sub-region adaptive integration in the embodiment of the present invention includes the following steps:

[0066] S101: Use CAD software to carry out geometric modeling of the radar conductor target, cut the entire target into several sub-areas and retain the virtual plane between the sub-areas;

[0067] S102: Discrete the surfaces of all sub-regions by using triangles and outp...

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Abstract

The invention discloses a method for obtaining electromagnetic scattering properties based on subregion adaptive integration. First, geometric modeling is performed on a radar conductor object by means of CAD software for cutting the whole object into multiple subregions and virtual surfaces among subregions are kept; secondly, all subregion surfaces are scattered with triangles and subregion grid information after dissection is output; Descartes grids are established in subregions respectively again, induced current of subregion surfaces is obtained by means of adaptive integration method and coupling among subregions; finally, far region scattered field is calculated by means of the induced current of subregion surfaces and further radar scattering cross section of the conductor object is obtained. Auxiliary point current amount is reduced on the premise that accurate calculation results are guaranteed, and memory requirement is reduced and convergence rate and simulation efficiency are increased.

Description

technical field [0001] The invention belongs to the technical field of radar electromagnetic simulation, in particular to a method for acquiring electromagnetic scattering characteristics based on sub-area self-adaptive integration. Background technique [0002] With the rapid development of radar detection system technology, the electromagnetic scattering analysis of complex electrically large conductor targets is of great significance in theoretical analysis and practical application. When using shore-based, airborne, and ship-based radars to identify and scatter imaging large-scale conductor targets such as aircraft, ships, and missiles, and when radars used for navigation detect surrounding obstacle targets, radar scattering must be performed on the targets. analyze. Therefore, the research on radar scattering characteristics of complex electrically large conductor targets has significant academic value and extensive application background in both national defense and c...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 王兴李艳艳张帅张玉洪涛赵勋旺龚书喜
Owner XIDIAN UNIV
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