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Radar-based Human Activity Recognition (HAR) is an attractive alternative to wearables and cameras because it preserves privacy, and is contactless and robust to occlusions. However, dominant Convolutional Neural Network (CNN)- and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Yizhuo Wu , Francesco Fioranelli , Chang Gao

Wi-Fi devices, akin to passive radars, can discern human activities within indoor settings due to the human body's interaction with electromagnetic signals. Current Wi-Fi sensing applications predominantly employ data-driven learning…

Signal Processing · Electrical Eng. & Systems 2024-07-09 Marco Cominelli , Francesco Gringoli , Lance M. Kaplan , Mani B. Srivastava , Trevor Bihl , Erik P. Blasch , Nandini Iyer , Federico Cerutti

Micro-Doppler signature is a potent feature that has been used for target identification and micro-motion parameter estimation. The extraction of high frequency micro-Doppler signature from frequency modulated continuous wave (FMCW) radar…

Signal Processing · Electrical Eng. & Systems 2022-04-21 Soorya Peter , Vinod Veera Reddy

Deep neural networks (DNNs) have recently received vast attention in applications requiring classification of radar returns, including radar-based human activity recognition for security, smart homes, assisted living, and biomedicine.…

Signal Processing · Electrical Eng. & Systems 2020-01-24 Baris Erol , Sevgi Zubeyde Gurbuz , Moeness G. Amin

Human Activity Recognition has gained significant attention due to its diverse applications, including ambient assisted living and remote sensing. Wearable sensor-based solutions often suffer from user discomfort and reliability issues,…

In the article, we describe a trajectory planning problem for a 6-DOF robotic manipulator arm that carries an ultra-wideband (UWB) radar sensor with synthetic aperture (SAR). The resolution depends on the trajectory and velocity profile of…

Systems and Control · Computer Science 2017-10-12 Stefan Brüggenwirth , Fernando Rial

As a hot topic in recent years, the ability of pedestrians identification based on radar micro-Doppler signatures is limited by the lack of adequate training data. In this paper, we propose a data-enhanced multi-characteristic learning…

Signal Processing · Electrical Eng. & Systems 2023-06-16 Haoming Li , Yu Xiang , Haodong Xu , Wenyong Wang

Radar-based techniques for detecting vital signs have shown promise for continuous contactless vital sign sensing and healthcare applications. However, real-world indoor environments face significant challenges for existing vital sign…

Hardware Architecture · Computer Science 2024-10-24 Yilong Li , Ramanujan K Sheshadri , Karthik Sundaresan , Eugene Chai , Suman Banerjee

This paper presents a new method for imaging, localizing, and tracking motion behind walls in real-time. The method takes advantage of the motion-induced variance of received signal strength measurements made in a wireless peer-to-peer…

Other Computer Science · Computer Science 2009-10-02 Joey Wilson , Neal Patwari

This paper presents a novel micro-Doppler energy-based framework for robust multi-target vital signs monitoring using 77-GHz Frequency-Modulated Continuous-Wave (FMCW) radar. Unlike conventional phase-based methods that are susceptible to…

Signal Processing · Electrical Eng. & Systems 2025-10-23 Chenxing Tan , Yuguan Hou , Hao Wang , Zhonghao Yuan

The field of human activity recognition has evolved significantly, driven largely by advancements in Internet of Things (IoT) device technology, particularly in personal devices. This study investigates the use of ultra-wideband (UWB)…

Machine Learning · Computer Science 2025-09-09 Aurora Polo-Rodríguez , Juan Carlos Valera , Jesús Peral , David Gil , Javier Medina-Quero

This article investigates how the creeping wave propagation around the human thigh could be used to monitor the leg movements. The propagation path around the human thigh gives information regarding leg motions that can be used for the…

Signal Processing · Electrical Eng. & Systems 2025-11-03 Sagar Dutta , Banani Basu , Fazal Ahmed Talukdar

To solve the problems of reduced accuracy and prolonging convergence time of through-the-wall radar (TWR) human motion due to wall attenuation, multipath effect, and system interference, we propose a multilink auto-encoding neural network…

Signal Processing · Electrical Eng. & Systems 2023-01-09 Weicheng Gao , Xiaopeng Yang , Xiaodong Qu , Tian Lan

The through-the-wall human being detection and localization in the complex environments by using the radar system has many possible applications such as for law enforcement, and search and rescue missions in disaster-stricken areas. This…

Signal Processing · Electrical Eng. & Systems 2020-12-22 Budiman P. A. Rohman , Muhammad Bagus Andra , Dion Hayu Fandiantoro , Masahiko Nishimoto

The reconstruction of micro-Doppler signatures of human movements is a key enabler for fine-grained activity recognition wireless sensing. In Joint Communication and Sensing (JCS) systems, unlike in dedicated radar sensing systems, a…

Signal Processing · Electrical Eng. & Systems 2024-02-06 Riccardo Mazzieri , Jacopo Pegoraro , Michele Rossi

Hand and arm gesture recognition using the radio frequency (RF) sensing modality proves valuable in manmachine interface and smart environment. In this paper, we use curve matching techniques for measuring the similarity of the maximum…

Signal Processing · Electrical Eng. & Systems 2019-11-12 Moeness G. Amin , Zhengxin Zeng , Tao Shan

The treatment of interfering motion contributions remains one of the key challenges in the domain of radar-based vital sign monitoring. Removal of the interference to extract the vital sign contributions is demanding due to overlapping…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Mikolaj Czerkawski , Christos Ilioudis , Carmine Clemente , Craig Michie , Ivan Andonovic , Christos Tachtatzis

We present a dual-domain microwave photonic radar system for multi-parameter vital sign monitoring, utilizing ultra-wideband radiofrequency signals to achieve high-precision chest displacement measurements, while high-frequency optical…

The newly established IEEE 802.11bf Task Group aims to amend the WLAN standard to support advanced sensing applications such as human activity recognition (HAR). Although studies have demonstrated the potential of sub-7 GHz Wi-Fi Channel…

Signal Processing · Electrical Eng. & Systems 2025-06-23 Navid Hasanzadeh , Shahrokh Valaee

Our paper presents a robust framework for UWB-based static gesture recognition, leveraging proprietary UWB radar sensor technology. Extensive data collection efforts were undertaken to compile datasets containing five commonly used…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Abhishek Sebastian , Pragna R