Accurate detection of Doppler cardiograms with a parameterized respiratory filter technique using a K-band radar sensor

S Dong, Y Li, J Lu, Z Zhang, C Gu… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Cardiogram is one of the most important factors for health assessment. As a new expression
of cardiograms, the Doppler cardiograms (DCGs) detected remotely via Doppler radar …

A highly accurate and sensitive mmWave displacement-sensing Doppler radar with a quadrature-less edge-driven phase demodulator

H Wang, H Afzal, O Momeni - IEEE Journal of Solid-State …, 2023 - ieeexplore.ieee.org
A 110-mW 39-GHz Doppler radar front end in 65-nm CMOS for displacement and vibration
sensing is proposed. Conventional Doppler radar suffers from detection nulls, at which the …

An FFT-based DC offset compensation and I/Q imbalance correction algorithm for bioradar sensors

F Tian, L Zhu, Q Shi, X Jin, R Cai… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
The challenge of noncontact presentation of human cardiopulmonary activity using a
bioradar sensor is to linearly demodulate the Doppler cardiopulmonary diagram (DCD) …

Contactless multiscale measurement of cardiac motion using biomedical radar sensor

J Qiao, F Qi, F Liang, J Ma, H Lv, X Yu… - Frontiers in …, 2022 - frontiersin.org
Introduction A contactless multiscale cardiac motion measurement method is proposed
using impulse radio ultra-wideband (IR-UWB) radar at a center frequency of 7.29 GHz …

Radiofrequency Doppler echocardiography

S Fan, Z Deng, Q Du, P Pan, S Yuan, X Huang - Measurement, 2023 - Elsevier
An individual's respiration and heart rates can be monitored in a contactless manner via
Doppler radar. However, previous studies have failed to analyse cardiac activity based on …

Noncontact Cardiac Activity Detection Based on Single-Channel ISM Band FMCW Radar

K Qu, L Wei, R Zhang - Biosensors, 2023 - mdpi.com
The heart is an important organ that maintains human life activities, and its movement
reflects its health status. Utilizing electromagnetic waves as a sensing tool, radar sensors …

Heart ID: Biometric Identification Using Wearable MIMO RF Heart Sensors

TB Conroy, X Hui, P Sharma… - IEEE Journal of …, 2022 - ieeexplore.ieee.org
Biometric identification (ID) has become increasingly prevalent in the digital era. Static
biometric methods, such as fingerprint and facial recognition are widely accepted, yet …

[HTML][HTML] 基于距离抽头重构的生理雷达动态解调算法

刘畅宇, 张浩, 耿芳琳, 白忠瑞, 王鹏, 李振锋, 杜利东… - 雷达学报, 2024 - radars.ac.cn
在无感雷达体征监测中, 与CW (Continuous wave) 相比, 调频式雷达(如FMCW 和UWB)
能实现对目标与杂波在距离上的有效区分. 通过距离傅立叶变换, 可以从不同距离区间提取出准 …

Improving heart rate variability information consistency in Doppler cardiogram using signal reconstruction system with deep learning for Contact-free heartbeat …

YI Jang, JY Sim, JR Yang, NK Kwon - Biomedical Signal Processing and …, 2022 - Elsevier
A contact-free continuous heart rate variability (HRV) analysis is required to conduct daily
heart monitoring and minimize physical contact during medical remedies owing to COVID …

Robust Cardiac Timing Detection Technique With Vectors Analytic Demodulation in Doppler Cardiogram Sensing

S Dong, Y Li, C Gu, J Mao - IEEE Transactions on Microwave …, 2024 - ieeexplore.ieee.org
Robust contactless Doppler cardiogram (DCG) detection in practical scenarios encounters
challenges arising from radar hardware performance limitations and signal processing …