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Millimeter-wave (mmWave) radar provides robust sensing under adverse conditions and can penetrate thin materials for non-visual perception in industrial and robotic settings. Recent work with MIMO mmWave radar has demonstrated its ability…

Signal Processing · Electrical Eng. & Systems 2026-04-03 Stefan Hägele , Adam Misik , Constantin Patsch , Eckehard Steinbach

This study proposes a non-contact method for identifying individuals through the use of heartbeat features measured with millimeter-wave radar. Although complex-valued radar signal spectrograms are commonly used for this task, little…

Signal Processing · Electrical Eng. & Systems 2026-01-13 Haruto Kobayashi , Takuya Sakamoto

Airborne radar sensors capture the profile of snow layers present on top of an ice sheet. Accurate tracking of these layers is essential to calculate their thicknesses, which are required to investigate the contribution of polar ice cap…

Computer Vision and Pattern Recognition · Computer Science 2025-01-27 Debvrat Varshney , Masoud Yari , Oluwanisola Ibikunle , Jilu Li , John Paden , Aryya Gangopadhyay , Maryam Rahnemoonfar

Touchscreen-based interaction on display devices are ubiquitous nowadays. However, capacitive touch screens, the core technology that enables its widespread use, are prohibitively expensive to be used in large displays because the cost…

Signal Processing · Electrical Eng. & Systems 2024-08-08 Raghunandan M. Rao , Amit Kachroo , Koushik A. Manjunatha , Morris Hsu , Rohit Kumar

The 4D millimeter-wave (mmWave) radar, with its robustness in extreme environments, extensive detection range, and capabilities for measuring velocity and elevation, has demonstrated significant potential for enhancing the perception…

Robotics · Computer Science 2024-05-09 Zeyu Han , Junkai Jiang , Xiaokang Ding , Qingwen Meng , Shaobing Xu , Lei He , Jianqiang Wang

Increasing attention is being paid to millimeter-wave (mmWave), 30 GHz to 300 GHz, and terahertz (THz), 300 GHz to 10 THz, sensing applications including security sensing, industrial packaging, medical imaging, and non-destructive testing.…

Signal Processing · Electrical Eng. & Systems 2023-06-28 Josiah Smith

Modern radar systems are designed to have high Doppler tolerance to detect fast-moving targets. This means range and Doppler estimations are inevitably coupled, opening pathways to concealing objects by imprinting artificial Doppler…

Signal Processing · Electrical Eng. & Systems 2023-05-17 V. Kozlov , D. Vovchuk , P. Ginzburg

In this paper we propose spectral tools based on non-decimated complex wavelet transforms implemented by their matrix formulation. This non-decimated complex wavelet spectra utilizes both real and imaginary parts of complex-valued wavelet…

Applications · Statistics 2019-02-05 Taewoon Kong , Brani Vidakovic

Through-wall synthetic aperture radar (SAR) imaging is of significant interest for security purposes, in particular when using multi-static SAR systems consisting of multiple distributed radar transmitters and receivers to improve…

Numerical Analysis · Mathematics 2024-10-30 Francis Watson , Daniel Andre , William Robert Breckon Lionheart

Light Detection and Ranging (LiDAR) are fast emerging sensors in the field of Earth Observation. It is a remote sensing technology that utilizes laser beams to measure distances and create detailed three-dimensional representations of…

Signal Processing · Electrical Eng. & Systems 2025-04-15 Saad Ahmed Jamal

Millimeter-wave (mmWave,>30 GHz) radars are the key enabler in the coming 6G era for high-resolution sensing and detection of targets. Photonic radar provides an effective approach to overcome the limitations of electronic radars thanks to…

Real-time detection of radar signals in a wideband radio frequency spectrum is a critical situational assessment function in electronic warfare. Compute-efficient detection models have shown great promise in recent years, providing an…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Zi Huang , Simon Denman , Akila Pemasiri , Terrence Martin , Clinton Fookes

This paper provides an analysis of radio wave scattering for frequencies ranging from the microwave to the Terahertz band (e.g., 1 GHz - 1 THz), by studying the scattering power reradiated from various types of materials with different…

The commercial availability of low-cost millimeter wave (mmWave) communication and radar devices is starting to improve the penetration of such technologies in consumer markets, paving the way for large-scale and dense deployments in…

Networking and Internet Architecture · Computer Science 2022-05-26 Anish Shastri , Neharika Valecha , Enver Bashirov , Harsh Tataria , Michael Lentmaier , Fredrik Tufvesson , Michele Rossi , Paolo Casari

Algorithms for mutual interference mitigation and object parameter estimation are a key enabler for automotive applications of frequency-modulated continuous wave (FMCW) radar. In this paper, we introduce a signal separation method to…

Signal Processing · Electrical Eng. & Systems 2024-10-03 Mate Toth , Erik Leitinger , Klaus Witrisal

Concealing objects from interrogation has been a primary objective since the integration of radars into surveillance systems. Metamaterial-based invisibility cloaking, which was considered a promising solution, did not yet succeed in…

Signal Processing · Electrical Eng. & Systems 2021-04-22 Vitali Kozlov , Dmytro Vovchuk , Pavel Ginzburg

mmWave radars offer excellent depth resolution even at very long ranges owing to their high bandwidth. But their angular resolution is at least an order-of-magnitude worse than camera and lidar systems. Hence, mmWave radar is not a capable…

Computer Vision and Pattern Recognition · Computer Science 2022-02-25 Akarsh Prabhakara , Diana Zhang , Chao Li , Sirajum Munir , Aswin Sankanaryanan , Anthony Rowe , Swarun Kumar

In distributed radar systems, when several transmitters radiate simultaneously, the reflected signals need to be distinguished at the receivers to detect various targets. If the transmit signals are in different frequency bands, they…

Signal Processing · Electrical Eng. & Systems 2024-01-02 Gokularam Muthukrishnan , S. Sruti , K. Giridhar

With the increasing growth of technology and the entrance into the digital age, we have to handle a vast amount of information every time which often presents difficulties. So, the digital information must be stored and retrieved in an…

Multimedia · Computer Science 2012-08-15 Kamrul Hasan Talukder , Koichi Harada

Hyperspectral imaging (HSI) is widely applied in various industries, enabling detailed analysis of material properties or composition through their spectral signatures. However, for classification of construction and demolition waste (CDW)…

Optics · Physics 2025-07-15 Stanislav Vítek , Tomáš Zbíral , Václav Nežerka