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Rectangular sparse cloth array optimization method based on self-adjusting mapping rule

A mapping matrix and self-adjusting technology, which is applied in the field of radar communication, can solve the problems of poor peak sidelobe level optimization ability of array antennas, etc., and achieve the effect of comprehensive optimization and low peak sidelobe level

Pending Publication Date: 2022-03-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the optimization ability of the peak sidelobe level of the array antenna is slightly worse than that of the sparse array under the same conditions

Method used

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  • Rectangular sparse cloth array optimization method based on self-adjusting mapping rule
  • Rectangular sparse cloth array optimization method based on self-adjusting mapping rule
  • Rectangular sparse cloth array optimization method based on self-adjusting mapping rule

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Embodiment Construction

[0061] The specific implementation manner and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0062] For a better description, first define the following:

[0063] Azimuth θ(-180°, 180°): the angle between the projection of the ray on the XOY plane and the X axis;

[0064] Pitch angle The angle between the ray and the Z axis;

[0065] Rectangular planar array: The array elements are distributed on the XOY plane, with the coordinate origin as the reference point, and the unit vector of the incident direction of the signal is

[0066] The specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings of the description, assuming that the array aperture of the rectangular planar sparse array antenna with a geometrically asymmetric structure under the polar coordinate system is L×H where (L≥H), the total number of rectangular arra...

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Abstract

The invention discloses a rectangular sparse cloth array optimization method based on a self-adjusting mapping rule, which is used for determining array element position matrix dimensions by solving an optimization problem and more fully utilizing array aperture information. Meanwhile, a self-adjusting mapping rule is provided, and a mapping matrix in a direction with a relatively small adjustable space is subjected to comparison exchange operation, so that the mapped array element position meets a multi-constraint condition. Meanwhile, compared with sparse arraying under the same simulation condition and arraying under an existing mapping rule, a better directional diagram is obtained, and comprehensive optimization of the directional diagram is achieved. According to the invention, the matrix sparse array with lower peak sidelobe level can be obtained under the condition of satisfying multiple constraints.

Description

technical field [0001] The invention belongs to the radar communication technology, and in particular relates to the optimization technology of a sparsely distributed rectangular plane array. Background technique [0002] An array antenna refers to an antenna obtained by arranging multiple antenna elements according to certain rules. By changing the arrangement of the antenna elements, the antenna radiation pattern can be adjusted, so as to meet the design requirements of the radiation pattern peak side lobe level, main lobe gain, and main lobe broadening. The distance between the array elements can have a great influence on the radiation pattern of the array elements, so the optimization of the pattern can be realized by adjusting the distance between the array elements. [0003] Currently, there are mainly two methods of array arrangement to optimize the pattern by adjusting the spacing between array elements. One is a sparse array, in which array elements are randomly s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06F111/04
CPCG06F30/27G06F2111/04Y02T10/40
Inventor 谢菊兰陈政宇刘正平匡宏印梅本春李会勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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