基于U-Net架构与球坐标系物理规律的地球-电离层波导三维电磁场预测方法及应用

By combining the physical information neural network of spherical coordinate system physical laws and impedance boundary condition constraints with the U-Net architecture, the problems of high efficiency, accuracy and physical consistency in predicting the three-dimensional electric field distribution of the Earth-ionospheric waveguide are solved, and it is suitable for electromagnetic field analysis in complex dynamic scenarios.

CN122174701BActive Publication Date: 2026-07-17ZHEJIANG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Filing Date
2026-05-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies cannot simultaneously meet the requirements of high accuracy, high efficiency, strong generalization and physical consistency in predicting the three-dimensional electric field distribution of the Earth-ionospheric waveguide, especially in complex dynamic scenarios where accurate electromagnetic field distribution analysis is difficult to achieve.

Method used

A physical information neural network based on the U-Net architecture is constructed, which combines the physical laws of the spherical coordinate system, the ground impedance boundary conditions, and the ionospheric impedance boundary conditions as constraints. The end-to-end prediction of the three-dimensional electromagnetic field is achieved through iterative training.

Benefits of technology

It achieves high-precision and rapid prediction of electromagnetic field distribution in complex ionospheric environments, adapts to the global spherical geometry of the Earth-ionospheric waveguide, and improves the model's generalization ability and physical consistency.

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Abstract

本申请提出了一种基于U‑Net架构与球坐标系物理规律的地球‑电离层波导三维电磁场预测方法及应用,包括以下步骤:构建U‑Net架构的物理信息神经网络;获取多组电离层参数,基于仿真模拟为每一组电离层参数生成三维电磁场作为标签得到训练样本集合;以训练样本集合对所述物理信息神经网络进行迭代训练,且在迭代训练过程中以球坐标系物理规律、地面阻抗边界条件以及电离层阻抗边界条件为约束;当损失函数满足预设条件时停止迭代并保存物理信息神经网络的最优参数完成训练。本方案以球坐标系物理规律、地面阻抗边界条件以及电离层阻抗边界条件为约束保证物理信息神经网络地面边界处以及电离层边界处的预测精度。
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