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A Method for Acquiring Electromagnetic Scattering Characteristics 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, and can solve problems such as large memory requirements, low convergence speed and simulation efficiency, and large number of auxiliary point currents.

Active Publication Date: 2019-03-26
XIDIAN UNIV
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Problems solved by technology

[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 the existing electromagnetic simulation methods, such as the large number of calculation auxiliary point currents, large memory requirements, low convergence speed and simulation efficiency. low problem

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  • A Method for Acquiring Electromagnetic Scattering Characteristics Based on Subregion Adaptive Integration
  • A Method for Acquiring Electromagnetic Scattering Characteristics Based on Subregion Adaptive Integration
  • A Method for Acquiring Electromagnetic Scattering Characteristics Based on Subregion Adaptive Integration

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[0063] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

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

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

[0066] S101: Using CAD software to geometrically model the radar conductor target, cutting the entire target into several sub-regions and retaining virtual surfaces between the sub-regions;

[0067] S102: Using triangles to discretize the surfaces of all sub-regions and...

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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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Patent Type & Authority Patents(China)
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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