一种降雨智能订正方法、装置、设备及存储介质

By constructing a dual-branch network structure and combining multi-scale spatial feature extraction and cross-modal fusion techniques, the problem of insufficient modeling from a single data source was solved, high-precision rainfall data correction was achieved, and the resolution and accuracy of precipitation data were improved.

CN122087735BActive Publication Date: 2026-07-17广东省气象数据中心

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
广东省气象数据中心
Filing Date
2026-04-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing precipitation retrieval methods suffer from insufficient modeling capabilities of single data sources and inadequate utilization of features at different scales, resulting in insufficient accuracy and resolution of precipitation data, making it difficult to meet high-precision requirements.

Method used

A dual-branch network structure is used to extract features from X-band phased array radar and meteorological model data. Through multi-scale spatial feature extraction, cross-modal residual embedding, and enhanced upsampling channel attention module, deep and shallow fusion is performed to construct an intelligent correction model for rainfall data, overcoming the problems of insufficient information from a single data source and difficulty in deep coupling of multi-source data.

Benefits of technology

It significantly improves the spatial resolution and correction accuracy of precipitation data, obtaining more accurate, stable and more generalizable rainfall estimation results, and suppresses the attenuation and clutter interference of X-band radar.

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Abstract

本发明公开了一种降雨智能订正方法、装置、设备及存储介质,方法包括:对X波段相控阵雷达反射率数据与气象网格实况数据进行时空匹配与归一化处理,构建样本对;采用双分支网络分别提取两类数据的特征,并通过引入注意力机制强化关键区域;利用下采样注意力模块抽取多尺度空间特征,再通过跨模态残差嵌入模块实现雷达数据局部纹理特征与气象数据全局物理特征的深度融合;通过增强上采样通道注意力模块对融合特征进行逐级上采样恢复分辨率,并结合跳跃连接与特征对齐,利用通道注意力自适应调控各尺度信息,以优化细节重建。最后,使用所构建的样本对网络进行训练,得到降雨数据智能订正模型,从而提升对气象网格实况数据进行订正的精度与可靠性。
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