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Novel radio map estimation in optical wireless communications is proposed based on ML prediction rather than simulation techniques. ML training is performed on simulation and experimentally generated synthetic data and in both cases,…

Signal Processing · Electrical Eng. & Systems 2026-01-05 Helena Serpi , Christina , Politi

Non-contact radar-based human sensing is often interpreted using simplified motion assumptions. However, respiration induces non-rigid surface deformation of the human body that impacts electromagnetic wave scattering and can degrade the…

Signal Processing · Electrical Eng. & Systems 2026-01-12 Guangqi Shi , Kimitaka Sumi , Takuya Sakamoto

Soft noncoherent detection, which relies on calculating the \textit{a posteriori} probabilities (APPs) of the bits transmitted with no channel estimation, is imperative for achieving excellent detection performance in high-dimensional…

Information Theory · Computer Science 2016-10-11 Chanfei Wang , Tiejun Lv , Hui Gao , Shaoshi Yang

The capacity of bandlimited direct-detection channels is challenging to compute or approach due to the receiver non-linearity. A generalized vector approximate message passing (GVAMP) detector is designed to achieve high rates at a…

Information Theory · Computer Science 2026-03-31 Daniel Plabst , Mohamed Akrout , Tobias Prinz , Amine Mezghani , Gerhard Kramer

In this paper, millimeter wave (mmWave) wireless channel characteristics (Doppler spread and path loss modeling) for Unmanned Aerial Vehicles (UAVs) assisted communication is analyzed and studied by emulating the real UAV motion using a…

Signal Processing · Electrical Eng. & Systems 2021-03-23 Amit Kachroo , Collin A. Thornton , Md Arifur Rahman Sarker , Wooyeol Choi , He Bai , Ickhyun Song , John O'Hara , Sabit Ekin

In this paper a new method based on the fusion of optical and radar data is proposed to detect and remotely interrogate mobile and passive sensors. The sensors are detected in real time by using an optical camera, while their remote reading…

Signal Processing · Electrical Eng. & Systems 2024-12-17 Ali Hadj Djilani , Dominique Henry , Patrick Pons , Herve Aubert

This paper shows experimentally that standard wireless networks which measure received signal strength (RSS) can be used to reliably detect human breathing and estimate the breathing rate, an application we call "BreathTaking". We show that…

Networking and Internet Architecture · Computer Science 2011-09-20 Neal Patwari , Joey Wilson , Sai Ananthanarayanan P. R. , Sneha K. Kasera , Dwayne Westenskow

Breathing is vital to life. Therefore, the real-time monitoring of breathing pattern of a patient is crucial to respiratory rehabilitation therapies such as magnetic resonance exams for respiratory-triggered imaging, chronic pulmonary…

Human respiratory rate and its pattern convey essential information about the physical and psychological states of the subject. Abnormal breathing can indicate fatal health issues leading to further diagnosis and treatment. Wireless…

Signal Processing · Electrical Eng. & Systems 2024-04-17 Md Zobaer Islam , Brenden Martin , Carly Gotcher , Tyler Martinez , John F. O'Hara , Sabit Ekin

Multivariate change point detection is the process of identifying distributional shifts in time-ordered data across multiple features. This task is particularly challenging when the number of features is large relative to the number of…

Breathing rate (BR), minute ventilation (VE), and other respiratory parameters are essential for real-time patient monitoring in many acute health conditions, such as asthma. The clinical standard for measuring respiration, namely…

Signal Processing · Electrical Eng. & Systems 2020-11-26 Ridwan Alam , David B. Peden , John C. Lach

Existing Human Motion Prediction (HMP) methods based on RGB-D cameras are sensitive to lighting conditions and raise privacy concerns, limiting their real-world applications such as firefighting and healthcare. Motivated by the robustness…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Junqiao Fan , Haocong Rao , Jiarui Zhang , Jianfei Yang , Lihua Xie

Motion capture using sparse inertial sensors has shown great promise due to its portability and lack of occlusion issues compared to camera-based tracking. Existing approaches typically assume that IMU sensors are tightly attached to the…

Graphics · Computer Science 2025-08-14 Andela Ilic , Jiaxi Jiang , Paul Streli , Xintong Liu , Christian Holz

Bayesian approximate message passing (BAMP) is an efficient method in compressed sensing that is nearly optimal in the minimum mean squared error (MMSE) sense. Bayesian approximate message passing (BAMP) performs joint recovery of multiple…

Information Theory · Computer Science 2019-01-30 Gabor Hannak , Alessandro Perelli , Norbert Goertz , Gerald Matz , Mike E. Davies

This paper investigates the problem of detection and classification of unmanned aerial vehicles (UAVs) in the presence of wireless interference signals using a passive radio frequency (RF) surveillance system. The system uses a multistage…

Signal Processing · Electrical Eng. & Systems 2019-09-13 Martins Ezuma , Fatih Erden , Chethan Kumar Anjinappa , Ozgur Ozdemir , Ismail Guvenc

Continuous monitoring of blood oxygen saturation levels is vital for patients with pulmonary disorders. Traditionally, SpO$_2$ monitoring has been carried out using transmittance pulse oximeters due to its dependability. However, SpO$_2$…

Signal Processing · Electrical Eng. & Systems 2020-04-15 Sricharan Vijayarangan , Prithvi Suresh , Preejith SP , Jayaraj Joseph , Mohansankar Sivaprakasam

Tracking an unknown number of low-observable objects is notoriously challenging. This letter proposes a sequential Bayesian estimation method based on the track-before-detect (TBD) approach. In TBD, raw sensor measurements are directly used…

Signal Processing · Electrical Eng. & Systems 2023-07-04 Mingchao Liang , Thomas Kropfreiter , Florian Meyer

Prediction of human motions is key for safe navigation of autonomous robots among humans. In cluttered environments, several motion hypotheses may exist for a pedestrian, due to its interactions with the environment and other pedestrians.…

Robotics · Computer Science 2020-11-17 Bruno Brito , Hai Zhu , Wei Pan , Javier Alonso-Mora

A non-invasive method for the monitoring of heart activity can help to reduce the deaths caused by heart disorders such as stroke, arrhythmia and heart attack. The human voice can be considered as a biometric data that can be used for…

Sound · Computer Science 2016-08-15 Aibek Ryskaliyev , Sanzhar Askaruly , Alex Pappachen James

In this paper, a novel method for detecting transformer winding axial displacement has been presented. In this method, which is based on UWB radar imaging, a UWB pulse is transmitted to the transformer winding and the reflection from it is…

Signal Processing · Electrical Eng. & Systems 2021-02-23 Mohammad S. Golsorkhi , M. A. Hejazi , G. B. Gharepetian , Razieh Mosayebi
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