现代雷达2025，Vol.47Issue(7)：37-45,9.DOI:10.16592/j.cnki.1004-7859.20230914003
基于DWT及Hampel滤波的心率检测方法
Heart Rate Detection Based on Discrete Wavelet Transform and Hampel Filter
孔维涛 1欧阳锋 2张顺生 1王文钦2
作者信息
- 1. 电子科技大学 电子科学技术研究院,四川 成都 611731
- 2. 电子科技大学 信息与通信工程学院,四川 成都 611731
- 折叠
摘要
Abstract
Aiming at the detection of human heart rate in Frequency modulated continuous wave(FMCW)radar,a method based on Hampel filter and discrete wavelet transform is proposed.Firstly,the phase information including heartbeat and breathing is ex-tracted from the IF signal by signal preprocessing to eliminate DC bias and complete phase unwinding.Hampel filter is used to re-duce the influence of random jitter on the phase signal when the human body is sitting.Then,heartbeat and breathing signals are obtained from the phase signals based on the discrete wavelet transform.Finally,the heart rate is estimated,and then spatial smoothing filter for the monitoring scene is used to obtain the heart rate estimation results with higher accuracy.Using 77 GHz FM-CW radar in simple and complex indoor environments,the experimental results show that the proposed method is better than other typical methods,and the average error value and average error rate of the obtained heart rate estimation results can reach 1.63 bpm and 1.66 respectively.关键词
调频连续波雷达/心率估计/Hampel滤波/离散小波变换Key words
FMCW radar/heart rate estimation/Hampel filter/discrete wavelet transform分类
信息技术与安全科学引用本文复制引用
孔维涛,欧阳锋,张顺生,王文钦..基于DWT及Hampel滤波的心率检测方法[J].现代雷达,2025,47(7):37-45,9.
