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A reconfigurable intelligent surface (RIS) consists of massive meta elements, which results in a reflection path between a base station (BS) and user equipment (UE). In wireless localization, this reflection path aids in positioning…

Signal Processing · Electrical Eng. & Systems 2021-12-02 Wei Zhang , Wee Peng Tay

We propose a focal-plane wavefront sensor (FPWFS) based on a short multimode fiber (MMF) capable of operating under moderately broadband illumination. By coupling the aberrated focal-plane field into an MMF of length <1 cm, we preserve…

Instrumentation and Methods for Astrophysics · Physics 2026-03-13 Auxiliadora Padrón-Brito , Natalia Arteaga-Marrero , Ian Cunnyngham , Jeff Kuhn

A technique that allows a Formation-Enforcing Control (FEC) derived from graph rigidity theory to interface with a realistic relative localization system onboard lightweight Unmanned Aerial Vehicles (UAVs) is proposed in this paper. The…

Robotics · Computer Science 2026-04-08 Viktor Walter , Matouš Vrba , Daniel Bonilla Licea , Matej Hilmer , Martin Saska

User localization and tracking in the upcoming generation of wireless networks have the potential to be revolutionized by technologies such as the Dynamic Metasurface Antennas (DMAs). Commonly proposed algorithmic approaches rely on…

Signal Processing · Electrical Eng. & Systems 2023-10-31 Kyriakos Stylianopoulos , Murat Bayraktar , Nuria González Prelcic , George C. Alexandropoulos

Neural Radiance Fields (NeRFs) have become a widely-applied scene representation technique in recent years, showing advantages for robot navigation and manipulation tasks. To further advance the utility of NeRFs for robotics, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Jiankai Sun , Yan Xu , Mingyu Ding , Hongwei Yi , Chen Wang , Jingdong Wang , Liangjun Zhang , Mac Schwager

A near-field secure transmission framework is proposed. Employing the hybrid beamforming architecture, a multi-antenna base station (BS) transmits confidential information to a multi-antenna legitimate user (U) against a multi-antenna…

Information Theory · Computer Science 2023-04-14 Zheng Zhang , Yuanwei Liu , Zhaolin Wang , Xidong Mu , Jian Chen

Efficient and precise location of emission sources in an urbanized environment is very important in electronic warfare. Therefore, unmanned aerial vehicles (UAVs) are increasingly used for such tasks. In this paper, we present the…

Signal Processing · Electrical Eng. & Systems 2025-03-25 Jan M. Kelner

Vision-aided localization for low-cost mobile robots in diverse environments has attracted widespread attention recently. Although many current systems are applicable in daytime environments, nocturnal visual localization is still an open…

Robotics · Computer Science 2024-03-05 Tianxiao Gao , Mingle Zhao , Chengzhong Xu , Hui Kong

The shift to the radiative near field region due to large antenna arrays necessitates beamforming that accounts for both angle and range, evolving mobility management into a joint angular range tracking challenge. Conventional schemes rely…

Signal Processing · Electrical Eng. & Systems 2026-04-28 Junchi Liu , Zijun Wang , Shawn Tsai , Rui Zhang

Ultra-wideband (UWB) indoor localization provides centimeter-level accuracy and low latency, but its measurement reliability degrades severely under Non-Line-of-Sight (NLOS) conditions, leading to meter-scale ranging errors and inconsistent…

Signal Processing · Electrical Eng. & Systems 2026-03-20 Kyeonghyun Yoo , Wooyong Jung , Namkyung Yoon , Sangmin Lee , Sanghong Kim , Hwangnam Kim

Object detection from images captured by Unmanned Aerial Vehicles (UAVs) is becoming increasingly useful. Despite the great success of the generic object detection methods trained on ground-to-ground images, a huge performance drop is…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Zhenyu Wu , Karthik Suresh , Priya Narayanan , Hongyu Xu , Heesung Kwon , Zhangyang Wang

Near-field communication comes to be an indispensable part of the future sixth generation (6G) communications at the arrival of the forth-coming deployment of extremely large-scale multiple-input-multiple-output (XL-MIMO) systems. Due to…

Signal Processing · Electrical Eng. & Systems 2024-09-04 Haochen Wu , Liyang Lu , Zhaocheng Wang

This paper presents a novel three-stage framework for real-time foreign object intrusion (FOI) detection and tracking in power transmission systems. The framework integrates: (1) a YOLOv7 segmentation model for fast and robust object…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Xinan Wang , Di Shi , Fengyu Wang

Object tracking has been broadly applied in unmanned aerial vehicle (UAV) tasks in recent years. However, existing algorithms still face difficulties such as partial occlusion, clutter background, and other challenging visual factors.…

Robotics · Computer Science 2020-09-01 Yujie He , Changhong Fu , Fuling Lin , Yiming Li , Peng Lu

A unique approach for the mid-air autonomous aerial interception of non-cooperating UAV by a flying robot equipped with a net is presented in this paper. A novel interception guidance method dubbed EPN is proposed, designed to catch agile…

Robotics · Computer Science 2025-03-25 Michal Pliska , Matouš Vrba , Tomáš Báča , Martin Saska

The use of supervised learning with various sensing techniques such as audio, visual imaging, thermal sensing, RADAR, and radio frequency (RF) have been widely applied in the detection of unmanned aerial vehicles (UAV) in an environment.…

Signal Processing · Electrical Eng. & Systems 2021-04-15 Olusiji O Medaiyese , Martins Ezuma , Adrian P Lauf , Ismail Guvenc

Collaborative path planning for robot swarms in complex, unknown environments without external positioning is a challenging problem. This requires robots to find safe directions based on real-time environmental observations, and to…

Robotics · Computer Science 2025-01-03 Chenxi Li , Weining Lu , Zhihao Ma , Litong Meng , Bin Liang

Noncoherent communication systems have regained interest due to the growing demand for high-mobility and low-latency applications. Most existing studies using large antenna arrays rely on the far-field approximation, which assumes locally…

Signal Processing · Electrical Eng. & Systems 2025-05-26 Aniol Martí , Luca Sanguinetti , Meritxell Lamarca , Jaume Riba

This paper proposes an uncertainty-aware marine pollution source tracking framework for unmanned surface vehicles (USVs). By integrating high-fidelity marine pollution dispersion simulation with informative path planning techniques, we…

Robotics · Computer Science 2025-11-12 Song Ma , Yanchao Wang , Richard Bucknall , Yuanchang Liu

Accurate tracking of transparent objects, such as glasses, plays a critical role in many robotic tasks such as robot-assisted living. Due to the adaptive and often reflective texture of such objects, traditional tracking algorithms that…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Kalyan Garigapati , Erik Blasch , Jie Wei , Haibin Ling
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