A continuous blood pressure monitoring method based on millimeter wave radar and multi-scale attention network

By using global normalization and multi-scale attention network to process radar signals, the problems of low blood pressure estimation accuracy and noise interference in existing technologies are solved, and high-precision continuous blood pressure monitoring is achieved.

CN122398243APending Publication Date: 2026-07-17UNIV OF ELECTRONICS SCI & TECH OF CHINA

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies, when using deep learning models to process radar signals, cannot fully preserve the absolute physical properties and physiological characteristics of the signals, resulting in low accuracy in blood pressure estimation and susceptibility to noise interference.

Method used

Global maximum-minimum normalization is used to process radar pulse wave signals. Combined with a multi-scale attention network and an attention mechanism that integrates pulse pressure difference priors, multi-scale morphological features are extracted to enhance physiological feature extraction and noise resistance.

Benefits of technology

It achieves high-precision continuous blood pressure waveform reconstruction, with estimation errors of systolic and diastolic blood pressure as low as 4.54 mmHg and 2.82 mmHg, respectively, which has high clinical reference value.

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Abstract

本发明公开了一种基于毫米波雷达与多尺度注意力网络的连续血压监测方法。首先,利用毫米波雷达获取人体微动信号并提取脉搏波序列;随后,采用全局最大最小值归一化策略处理信号,以保留跨周期的绝对物理幅值特征;接着,将信号输入至集成有并行卷积块注意力模型(P‑CBAM)的 MultiResUNet 深度学习网络中,通过多分辨率块捕捉脉搏波的宏观节律与微观切迹特征,并利用注意力机制聚焦于关键生理波段;最后,通过全连接回归层输出收缩压与舒张压。本发明解决了非接触监测中绝对幅值丢失及特征提取精度低的问题,实现了符合医学标准的连续血压预测。
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