Electromagnetic characteristic analysis method and system for electrically large-size target with complex structure

A technology with large electrical size and electromagnetic characteristics, which is applied in the field of rapid analysis of electromagnetic characteristics of complex structure electrical large-scale targets, can solve problems such as reduced computational efficiency, achieve the effect of reducing preprocessing workload and improving computational efficiency

Active Publication Date: 2020-06-12
NAT UNIV OF DEFENSE TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a method and system for analyzing the electromagnetic characteristics of an electrically large-sized target with a complex structure, which is used to overcome the defects in the prior art that the calculation efficiency drops sharply with the increase of the target electrical size.

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  • Electromagnetic characteristic analysis method and system for electrically large-size target with complex structure
  • Electromagnetic characteristic analysis method and system for electrically large-size target with complex structure
  • Electromagnetic characteristic analysis method and system for electrically large-size target with complex structure

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Embodiment 1

[0028] as attached Figure 1-4 As shown, the embodiment of the present invention provides a method for analyzing the electromagnetic characteristics of an electrically large-scale target with a complex structure, including:

[0029] Step 1: Triangulate the surface of the target to be analyzed and set the regional decomposition seeds according to the geometric configuration of the target surface; complete the autonomous decomposition of the target area based on the decomposition seeds, and obtain several decomposed parts and number them;

[0030] Said step 1 includes:

[0031] Step 11, performing unstructured triangular meshing on the target to be analyzed;

[0032] First, unstructured triangular meshing is carried out on the target to be analyzed, and the maximum size of the subdivision is set to 0.1λ (λ represents the calculation wavelength. Unstructured triangular meshing can be done with the help of existing mature technologies or software, such as Feko, Ansys ICEMCFD etc...

Embodiment 2

[0113] Based on the first embodiment above, the present invention provides a system for analyzing the electromagnetic characteristics of an electrically large-scale target with a complex structure, including a memory and a processor, the memory stores an analysis program for the electromagnetic characteristics of an electrically large-scale target with a complex structure, and the processor runs the The steps of any embodiment of the above-mentioned method are executed when the electromagnetic characteristic analysis program of an electrically large-scale target with a complex structure is performed.

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Abstract

The invention discloses an electromagnetic characteristic analysis method and system for an electrically large-size target with a complex structure, and the method comprises the steps: carrying out the surface triangulation of the target, setting a regional decomposition seed, completing the regional autonomous decomposition of the target based on the decomposition seed, obtaining a plurality of decomposition parts, and numbering the decomposition parts; creating a plurality of parallel threads, specifying a main thread and sub-threads, and distributing the number and serial number of decomposition parts responsible for each sub-thread; for each sub-thread, constructing a comprehensive function for all responsible decomposition parts, compressing the self / mutual impedance matrix and the excitation matrix of the decomposition parts by utilizing the comprehensive function, and reporting a result to a main thread; the main thread detects connection boundaries between different decomposition components, and calculates a self / mutual impedance matrix and an excitation matrix of the connection boundaries; and constructing a target overall compression matrix equation, solving the equation,and combining with the comprehensive function definition to obtain the electromagnetic characteristics of the target in space. The method solves the problems of low processing efficiency and the likein the prior art, and greatly improves the comprehensive processing efficiency of the SBFM.

Description

technical field [0001] The invention relates to the field of electromagnetic technology, in particular to a method for quickly analyzing the electromagnetic characteristics of an electrically large-sized target with a complex structure based on a parallel comprehensive function moment method. Background technique [0002] With the continuous development and progress of electronic information technology and electromagnetic field theory, the extraction and analysis of the electromagnetic characteristics of the target structure or target system has become an important link that cannot be ignored in the current electronic system design process. For example, the stealth design of the target structure needs to use the electromagnetic scattering characteristics of the target as input; the electromagnetic compatibility analysis of the target system needs to comprehensively consider the electromagnetic coupling effect between different components; the design of a large array antenna n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
Inventor 徐延林刘晨曦黄贤俊刘继斌刘培国
Owner NAT UNIV OF DEFENSE TECH
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