基于物理信息神经网络的可控源电磁数据去噪方法及系统

By combining a physical information neural network with a composite loss function that integrates data fidelity and physical constraints, the signal-to-noise ratio (SNR) degradation caused by noise interference in the traditional controllable source electromagnetic method is solved, achieving high-fidelity restoration of electromagnetic signals and improving physical rationality.

CN122412969APending Publication Date: 2026-07-17CENT SOUTH UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Filing Date
2026-06-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional controlled-source electromagnetic methods are subject to interference from complex human electromagnetic noise in mining areas during mineral exploration, resulting in a decrease in signal-to-noise ratio. Existing deep learning denoising methods lack physical constraints, leading to physical distortion and poor interpretability of denoising results.

Method used

A physical information neural network is used to construct a composite loss function, which combines data fidelity loss and physical constraint loss, including transmit waveform consistency, frequency domain attenuation, time domain smoothness and autocorrelation sidelobe suppression, to ensure that the denoising result conforms to the physical laws of electromagnetic signals.

Benefits of technology

It achieves high-fidelity restoration of controllable source electromagnetic signals under strong interference environment, improves the physical rationality and interpretability of denoising results, has strong adaptability, and avoids the parameter dependence and black box characteristics of traditional methods.

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Abstract

本发明公开了一种基于物理信息神经网络的可控源电磁数据去噪方法及系统,旨在解决传统深度学习去噪模型物理一致性缺失、可解释性不足的技术瓶颈。所述方法包括:首先构建可控源电磁有用信号与含噪数据样本库;设计物理信息神经网络主体架构,确定网络层;设计复合损失函数,其中包括数据损失与物理约束损失项;然后利用构建的有用信号与含噪数据样本库对物理信息神经网络进行训练,获得基于物理信息约束的深度学习去噪模型;最后将实测可控源电磁数据输入至去噪模型中,模型同步输出去噪后的可控源电磁有用信号。本发明能够有效去除可控源电磁数据中的强干扰,并确保模型输出的有用信号既贴合实测数据特征,又遵循物理规律。
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