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Millimeter Wave Radar is being adopted as a viable alternative to lidar and radar in adverse visually degraded conditions, such as the presence of fog and dust. However, this sensor modality suffers from severe sparsity and noise under…

Robotics · Computer Science 2023-10-23 Ajay Narasimha Mopidevi , Kyle Harlow , Christoffer Heckman

One of the notorious problems of frequency modulated continuous-wave (FMCW) radar is leakage between the transmitter and the receiver. The phase noise of the leakage is expressed as a skirt around the leakage signal on power spectrum. It…

Signal Processing · Electrical Eng. & Systems 2019-03-27 Junhyeong Park , Seungwoon Park , Seong-Ook Park

Radar shows great potential for autonomous driving by accomplishing long-range sensing under diverse weather conditions. But radar is also a particularly challenging sensing modality due to the radar noises. Recent works have made enormous…

Robotics · Computer Science 2022-01-19 Pou-Chun Kung , Chieh-Chih Wang , Wen-Chieh Lin

Eavesdropping on voice conversations presents a growing threat to personal privacy and information security. In this paper, we present RadEar, a novel RF backscatter-based system designed to enable covert voice eavesdropping through walls.…

Networking and Internet Architecture · Computer Science 2026-03-16 Qijun Wang , Peihao Yan , Chunqi Qian , Huacheng Zeng

Accurate 3D scene motion perception significantly enhances the safety and reliability of an autonomous driving system. Benefiting from its all-weather operational capability and unique perceptual properties, 4D mmWave radar has emerged as…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Ruiqi Cheng , Huijun Di , Jian Li , Feng Liu , Wei Liang

Since electromagnetic signals are omnipresent, Radio Frequency (RF)-sensing has the potential to become a universal sensing mechanism with applications in localization, smart-home, retail, gesture recognition, intrusion detection, etc. Two…

Signal Processing · Electrical Eng. & Systems 2022-05-23 Cristian J. Vaca-Rubio , Dariush Salami , Petar Popovski , Elisabeth de Carvalho , Zheng-Hua Tan , Stephan Sigg

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

Ophthalmic surgical robots offer superior stability and precision by reducing the natural hand tremors of human surgeons, enabling delicate operations in confined surgical spaces. Despite the advancements in developing vision- and…

Robotics · Computer Science 2025-07-02 Tinghe Hong , Shenlin Cai , Boyang Li , Kai Huang

Accurate point-wise velocity estimation in 3D is crucial for robot interaction with non-rigid dynamic agents, enabling robust performance in path planning, collision avoidance, and object manipulation in dynamic environments. To this end,…

Robotics · Computer Science 2026-04-13 Landson Guo , Andres M. Diaz Aguilar , William Talbot , Turcan Tuna , Marco Hutter , Cesar Cadena

Due to its light and weather-independent sensing, millimeter-wave (MMW) radar is essential in smart environments. Intelligent vehicle systems and industry-grade MMW radars have integrated such capabilities. Industry-grade MMW radars are…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Maloy Kumar Devnath , Avijoy Chakma , Mohammad Saeid Anwar , Emon Dey , Zahid Hasan , Marc Conn , Biplab Pal , Nirmalya Roy

Accurate terrain perception is essential for terrain-following flight of agricultural unmanned aerial vehicles (UAVs), yet remains challenging in real-world farmland due to occlusions, complex terrain geometry, and environmental…

Robotics · Computer Science 2026-05-05 Zhihao Zhan , Le Tao , Shaobin Li , Chenxin Fang , Xingrui Yang , Liang Li , Rui Fan , Yuhang Ming

We tackle the problem of exploiting Radar for perception in the context of self-driving as Radar provides complementary information to other sensors such as LiDAR or cameras in the form of Doppler velocity. The main challenges of using…

Computer Vision and Pattern Recognition · Computer Science 2020-07-29 Bin Yang , Runsheng Guo , Ming Liang , Sergio Casas , Raquel Urtasun

Utilizing radar sensing for assisting communication has attracted increasing interest thanks to its potential in dynamic environments. A particularly interesting problem for this approach appears in the vehicle-to-vehicle (V2V) millimeter…

Signal Processing · Electrical Eng. & Systems 2023-10-31 Hao Luo , Umut Demirhan , Ahmed Alkhateeb

Underground water and wastewater pipelines are vital for city operations but plagued by anomalies like leaks and infiltrations, causing substantial water loss, environmental damage, and high repair costs. Conventional manual inspections…

Machine Learning · Computer Science 2025-10-09 Qiming Guo , Bishal Khatri , Hua Zhang , Wenlu Wang

This paper presents the first machine learning based real-world demonstration for radar-aided beam prediction in a practical vehicular communication scenario. Leveraging radar sensory data at the communication terminals provides important…

Signal Processing · Electrical Eng. & Systems 2021-11-19 Umut Demirhan , Ahmed Alkhateeb

Millimeter wave (mmWave) and sub-terahertz communication systems rely mainly on line-of-sight (LOS) links between the transmitters and receivers. The sensitivity of these high-frequency LOS links to blockages, however, challenges the…

Signal Processing · Electrical Eng. & Systems 2021-11-30 Umut Demirhan , Ahmed Alkhateeb

With the rise of voice-enabled technologies, loudspeaker playback has become widespread, posing increasing risks to speech privacy. Traditional eavesdropping methods often require invasive access or line-of-sight, limiting their…

Sound · Computer Science 2025-11-11 Dachao Han , Teng Huang , Han Ding , Cui Zhao , Fei Wang , Ge Wang , Wei Xi

Multi-sensor fusion has significant potential in perception tasks for both indoor and outdoor environments. Especially under challenging conditions such as adverse weather and low-light environments, the combined use of millimeter-wave…

Image and Video Processing · Electrical Eng. & Systems 2025-05-23 Tieshuai Song , Jiandong Ye , Ao Guo , Guidong He , Bin Yang

The performance of perception systems developed for autonomous driving vehicles has seen significant improvements over the last few years. This improvement was associated with the increasing use of LiDAR sensors and point cloud data to…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Yahia Dalbah , Jean Lahoud , Hisham Cholakkal

This paper introduces PanoRadar, a novel RF imaging system that brings RF resolution close to that of LiDAR, while providing resilience against conditions challenging for optical signals. Our LiDAR-comparable 3D imaging results enable, for…

Signal Processing · Electrical Eng. & Systems 2024-05-31 Haowen Lai , Gaoxiang Luo , Yifei Liu , Mingmin Zhao