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Multi-point vital sign monitoring is essential for providing detailed insights into physiological changes. Traditional single-sensor approaches are inadequate for capturing multi-point vibrations. Existing contact-based solutions, while…

Hardware Architecture · Computer Science 2024-11-15 Wei Ren , Jiannong Cao , Huansheng Yi , Kaiyue Hou , Miaoyang Hu , Jianqi Wang , Fugui Qi

Cardiovascular disease (CVD) is a leading cause of morbidity and mortality worldwide, and sustained hypertension is an often silent risk factor, making cuffless continuous blood pressure (BP) monitoring with wearable devices important for…

Signal Processing · Electrical Eng. & Systems 2025-12-02 Yiqiao Chen , Fazheng Xu , Zijian Huang , Juchi He , Zhenghui Feng

Wi-Fi sensing detects human motions and activities by analysing the channel state information (CSI) derived from Wi-Fi transmissions. However, the impact of variable transmission traffic, which dictates the effective sampling rate and…

Machine Learning · Computer Science 2026-05-12 Guolin Yin , Junqing Zhang , Guanxiong Shen , Simon L. Cotton

With the rising prevalence of cardiovascular and respiratory disorders and an aging global population, healthcare systems face increasing pressure to adopt efficient, non-contact vital sign monitoring (NCVSM) solutions. This study…

Signal Processing · Electrical Eng. & Systems 2025-01-14 Yonathan Eder , Emma Zagoury , Shlomi Savariego , Moshe Namer , Oded Cohen , Yonina C. Eldar

Continuous monitoring of vital signs is of paramount importance. These critical physiological parameters play a crucial role in the early detection of conditions that affect the well-being of a patient. However, conventional contact-based…

Signal Processing · Electrical Eng. & Systems 2023-07-19 Gabriel Beltrão , Udo Schroeder

The arterial pulse wave, which propagates along the artery, is an important indicator of various cardiovascular diseases. By measuring the displacement at multiple parts of the human body, pulse wave velocity can be estimated from the pulse…

Signal Processing · Electrical Eng. & Systems 2020-09-28 Takuya Sakamoto

Mean arterial blood pressure (MAP) dynamics estimation and its automated regulation could benefit the clinical and emergency resuscitation of critical patients. In order to address the variability and complexity of the MAP response of a…

Systems and Control · Electrical Eng. & Systems 2020-07-09 Shahin Tasoujian , Saeed Salavati , Matthew Franchek , Karolos Grigoriadis

We developed a noncontact measurement system for monitoring the respiration of multiple people using millimeter-wave array radar. To separate the radar echoes of multiple people, conventional techniques cluster the radar echoes in the time,…

Signal Processing · Electrical Eng. & Systems 2021-08-03 Takato Koda , Takuya Sakamoto , Shigeaki Okumura , Hirofumi Taki

Thispaper presents the design and realization of a context-aware wireless health monitoring system for recording the heartbeat (HR) and respiration (RR) rate based on an indirect measurement approach. The system consists of a contact-less…

Human-Computer Interaction · Computer Science 2019-07-22 Amir Javadpour , HamidrezaMemarzadeh-Tehran

This paper presents a new method for detecting and classifying a predefined set of hand gestures using a single transmitter and a single receiver utilizing a linearly frequency modulated ultrasonic signal. Gestures are identified based on…

Signal Processing · Electrical Eng. & Systems 2017-10-25 Mohammed H. AlSharif , Mohamed Saad , Tareq Y. Al-Naffouri

Vital sign monitoring plays a critical role in healthcare and well-being, as parameters such as respiration and heart rate offer valuable insights into an individual's physiological state. While wearable devices allow for continuous…

Signal Processing · Electrical Eng. & Systems 2025-09-15 Christian Eckrich , Abdelhak M. Zoubir , Vahid Jamali

Contact-free detection of human vital signs like heart rate and respiration rate will improve the patients' comfort and enables long-term monitoring of newborns or bedridden patients. For that, reliable and safe measurement techniques are…

Medical Physics · Physics 2020-07-28 Roman Kusche , Fabian John , Marco Cimdins , Horst Hellbrueck

In this paper, an integrated passive sensing and communication system working in 60 GHz band is elaborated, and the sensing performance is investigated in an application of hand gesture recognition. Specifically, in this integrated system,…

Signal Processing · Electrical Eng. & Systems 2022-03-29 Jie Li , Chao Yu , Yan Luo , Yifei Sun , Rui Wang

Recently, remote respiratory rate measurement techniques gained much attention as they were developed to overcome the limitations of device-based classical methods and manual counting. Many approaches for RR extraction from the video stream…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Petro Franchuk , Tetiana Yezerska

In this paper, we present a real-time system identification method based on relay feedback testing with applications to multirotor unmanned aerial vehicles. The proposed identification method provides an alternative to the expensive lab…

Systems and Control · Electrical Eng. & Systems 2024-10-28 Anees Peringal , Mohamad Chehadeh , Igor Boiko , Yahya Zweiri

Tracking organ motion is important in image-guided interventions, but motion annotations are not always easily available. Thus, we propose Repetitive Motion Estimation Network (RMEN) to recover cardiac and respiratory signals. It learns the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-09 Xiaoxiao Li , Vivek Singh , Yifan Wu , Klaus Kirchberg , James Duncan , Ankur Kapoor

This paper proposes a variational Bayesian (VB) detector for affine frequency division multiplexing (AFDM) systems. The proposed method estimates the symbol probability distribution by minimizing the Kullback-Leibler (KL) divergence between…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Can Zheng , Chung G. Kang

Radar-based vital sign monitoring (VSM) systems have become valuable for non-contact health monitoring by detecting physiological activities, such as respiration and heartbeat, remotely. However, the conventional phased array used in VSM is…

Signal Processing · Electrical Eng. & Systems 2025-04-03 Zhihao Tao , Athina P. Petropulu

In this paper, we propose a radio-based passive target tracking algorithm using multipath measurements, including the angle of arrival and relative distance. We focus on a scenario in which a mobile receiver continuously receives radio…

Signal Processing · Electrical Eng. & Systems 2024-11-08 Ke Xu , Rui Zhang , He , Chen

We present a data-driven car occupancy detection algorithm using ultra-wideband radar based on the ResNet architecture. The algorithm is trained on a dataset of channel impulse responses obtained from measurements at three different…

Signal Processing · Electrical Eng. & Systems 2025-11-05 Jakob Möderl , Stefan Posch , Franz Pernkopf , Klaus Witrisal