Near-field scattering characteristic modeling method, electronic equipment and storage medium
A technology of scattering characteristics and modeling methods, applied in the direction of design optimization/simulation, special data processing applications, etc., can solve the problems of ignoring the polarization characteristics of the incident wave, the receiving characteristics of the receiving antenna, and the urgent need to improve the calculation accuracy, so as to achieve the goal of perfect modeling Effect
Active Publication Date: 2020-12-11
SHANGHAI RADIO EQUIP RES INST
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In the simulation of near-field scattering characteristics, the antenna pattern is currently used as the main simulation calculation, ignoring the polarization characteristics of the incident wave and the receiving characteristics of the receiving antenna, and the calculation accuracy needs to be improved urgently.
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[0028] As mentioned in the background technology, the existing near-field electromagnetic scattering characteristics simulation method ignores the polarization characteristics of the incident wave and the receiving characteristics of the receiving antenna, and the calculation accuracy needs to be improved urgently. The specific analysis is as follows:
[0029] In the patent "A Simulation Method for Near-field Electromagnetic Scattering Characteristics" (public number: CN108445303A), the Beijing Institute of Environmental Characteristics combined the multi-layer fast multipole with the full-wave method and the antenna pattern to calculate the near-field conditions of the target. Characteristic parameters of electromagnetic scattering characteristics; University of Electronic Science and Technology of China has developed a fast target detection method in combination with physical optics and antenna pattern Near-field RCS simulation algorithm; Northwestern Polytechnical University...
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The invention discloses a near-field scattering characteristic modeling method, electronic equipment and a storage medium. The method comprises the steps of carrying out the mesh generation of a target geometric model through employing a non-uniform mesh generation method according to the curvature characteristics of the target geometric model; and calculating an incident field incident to the surface of the target geometric model according to the radiation characteristic distribution of the transmitting antenna, and tracking each incident ray by the field intensity of the incident field untilthe incident rays are emitted; and acquiring the near-field scattering characteristic contribution of each emergent ray at the position of the receiving antenna according to the radiation characteristic distribution of the receiving antenna in combination with the polarization mode of the receiving antenna. According to the method, the incident wave polarization component and the receiving characteristics of the receiving antenna are considered, the obtained near-field characteristics include the radial component, near-field information is perfected, and the method is an accurate and efficient simulation technical means.
Description
technical field [0001] The invention relates to the technical field of radar target characteristic simulation, in particular to a near-field scattering characteristic modeling method, electronic equipment and a storage medium. Background technique [0002] The simulation calculation of near-field scattering characteristics is of great significance in reality, and it is widely used in short-distance detection and automatic driving. In the simulation of near-field scattering characteristics, the antenna pattern is currently used as the main simulation calculation, ignoring the polarization characteristics of the incident wave and the receiving characteristics of the receiving antenna, and the calculation accuracy needs to be improved urgently. Contents of the invention [0003] The object of the present invention is to provide a near-field scattering characteristic modeling method, electronic equipment and storage medium, so as to achieve the purpose of improving the calcula...
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IPC IPC(8): G06F30/23
CPCG06F30/23
Inventor 高伟米晓林廖意张玉涛
Owner SHANGHAI RADIO EQUIP RES INST