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The invention discloses a sScaling target construction method containing a gap scattering inhibition coating

A construction method and a scattering coating technology, which are applied in special data processing applications, instruments, and electrical digital data processing, etc., can solve problems such as weak scattering sources and scaling material coupling effects are not involved, and achieve convenient manufacturing and ensure consistency sexual effect

Active Publication Date: 2019-04-12
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

[0003] At present, for non-metallic materials such as coatings, the research on the preparation method of electromagnetic scaling materials is carried out, and the design is based on the reflectivity of the material. However, the coupling effect between the weak scattering source and the scaling material has not been involved. arrive

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  • The invention discloses a sScaling target construction method containing a gap scattering inhibition coating
  • The invention discloses a sScaling target construction method containing a gap scattering inhibition coating
  • The invention discloses a sScaling target construction method containing a gap scattering inhibition coating

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Embodiment Construction

[0033] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown, a method for constructing a scaled-down target containing a crack-scattering-suppressing coating of the present invention includes:

[0035] Step S1, the input of prototype stealth material data and seam model parameters:

[0036] The input prototype stealth material data mainly includes: electromagnetic parameters and thickness d of the prototype stealth material;

[0037] The above electromagnetic parameters include: complex permittivity ε and complex permeability μ, prototype test frequency f and scaling factor s.

[0038] The parameters of the jointed model mainly include: various geometric dimensions of the jointed model, such as the length a, width b, and thickness t of the metal plate, the slope of the edge chamfer 310 of the lower surface 31 , and the length l, width w,...

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Abstract

The invention discloses a scaling target construction method containing a gap scattering inhibition coating. The method comprises the following steps: on the basis of considering the reflection characteristic of a scaling material, carrying out simulation analysis on the structural effect between a target weak scattering source and the material, and then optimizing a scaling target model with closer scattering characteristics by adjusting the slit width; T. The construction method further comprises the steps of S1, inputting prototype stealth material data and parameters of the seam-containingmodel; S; s2, calculating the oblique reflectivity of the prototype stealth material; S; s3, constructing a scaling material; S; s4, setting the width of the gap; S; s5, performing RCS simulation comparison; and S6, outputting the scaling target model. The method is used for an electromagnetic model containing a coating and weak scattering, and the consistency of reflection and scattering characteristics of a scaling model can be ensured. The scale model constructed by the invention is used for carrying out slot width compensation on the weak scattering source, and is more convenient for manufacturing the scale model.

Description

technical field [0001] The invention relates to the field of target characteristic testing and the construction of scaled-down stealth materials, in particular to a scaled-down target construction method with a crack-scatter-suppressing coating. Background technique [0002] A large number of stealth materials are used in stealth aircraft in modern military systems, such as surface absorbing coatings, carbon fiber skins, leading edge absorbing structures, honeycomb structures, etc. The dielectric constant and permeability of stealth materials usually change with frequency As a result, it is difficult to guarantee the corresponding electromagnetic performance in the frequency range of the scaled measurement. In order to keep the scaled model system obeying the similarity criterion at the operating frequency, it is necessary to prepare scaled-down stealth materials that meet the requirements. The scale model and the prototype target need to keep the electrical size ratio unch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2113/28G06F30/15G06F30/20Y02E60/00
Inventor 许勇刚袁黎明梁子长高伟张元
Owner SHANGHAI RADIO EQUIP RES INST
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