Conformal Mapping Method of Spherical Isoperipheral Ratio for Radome
A technology of conformal mapping and radome, which is applied to the details of processing steps, image analysis, instruments, etc., and can solve the problems of planar unit placement, design and implementation difficulties of radome conformal absorbers, etc.
Active Publication Date: 2022-05-06
NAVAL UNIV OF ENG PLA
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Problems solved by technology
However, when building a conformal absorber on a 2D sphere, for example on a sphere, there is no suitable isometric mapping to place planar elements onto the curved surface
This makes the design and implementation of radome conformal absorbers more difficult
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] Such as figure 1 As shown, the spherical equiperipheral ratio conformal mapping method of the radome provided by this embodiment includes:
[0030] 101. Establish a mapping plane located on the x-axis and the y-axis; a dot matrix is distributed on the plane, each point represents a periodic unit, and there is no coverage between the periodic units;
[0031] In this embodiment, the shape of the periodic unit is a double hexagonal ring, and the interva...
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The present invention relates to the technical field of radome design, in particular to a method for conformal mapping of a radome with a spherical equiperipheral ratio, including: establishing a mapping plane located on the x-axis and y-axis; dot matrixes are distributed on the plane, and each point represents a periodic unit , there is no coverage between the periodic units; determine a certain point Q in the lattice 0 As the center of the circle, find any point Q in the lattice; establish the surface spherical surface of the radome, and set Q 0 Map along the z-axis to the corresponding point P on the sphere 0 , map Q to the corresponding point P on the spherical surface; establish a local mapping between the unit where Q is located and the tangent plane with P as the origin; set the unit where Q is located with a scaling factor of α c , and perform linear mapping to the spherical surface of P, so that with Q 0 The length of the circle passing through Q as the center is proportional to the length of the circle passing through P with the z-axis as the central axis. The invention can design and realize the radome with a spherical surface, and ensure that the mapping deformation is small.
Description
technical field [0001] The invention relates to the technical field of radome design, in particular to a conformal mapping method of spherical equiperipheral ratio conformal mapping of a radome. Background technique [0002] Using absorbing material on the surface of the radome, most conformal absorbing materials are studied cylindrical conformality, which is due to the fact that cylindrical conformality only bends in one direction. However, when building conformal absorbers on two-dimensional spheres, for example on a sphere, there is no suitable isometric mapping to place planar elements onto curved surfaces. This makes the design and implementation of radome conformal absorbers more difficult. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the present invention provides a conformal mapping method for a spherical surface of a radome, which can design and realize a radome with a spherical surface. [0004] The spherical equi...
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IPC IPC(8): G06T17/10G06T7/62
CPCG06T17/10G06T7/62G06T2200/08
Inventor 刘立国卢建斌王亮牛敬华刘涛
Owner NAVAL UNIV OF ENG PLA