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The present paper proposes optimization-based solutions to visual SLAM with a vehicle-mounted surround-view camera system. Owing to their original use-case, such systems often only contain a single camera facing into either direction and…

Robotics · Computer Science 2025-03-06 Kun Huang , Yifu Wang , Si'ao Zhang , Zhirui Wang , Zhanpeng Ouyang , Zhenghua Yu , Laurent Kneip

A simplification strategy for Segmented Mirror Splitters (SMS) used as beam combiners is presented. These devices are useful for compact beam division and combination of linear and 2-D arrays. However, the standard design requires unique…

In this paper, we address the problem of stable coordinated motion in multi-robot systems with limited fields of view (FOVs). These problems arise naturally for multi-robot systems that interact based on sensing, such as our case study of…

Systems and Control · Electrical Eng. & Systems 2019-09-18 Pratik Mukherjee , Matteo Santilli , Andrea Gasparri , Ryan K Williams

Given the spatial heterogeneity of land use patterns in most cities, large-scale UAM deployments will likely focus on specific areas, such as intertransfer traffic between suburbs and city centers. However, large-scale UAM operations…

Systems and Control · Electrical Eng. & Systems 2025-08-26 Canqiang Weng , Can Chen , Jingjun Tan , Tianlu Pan , Renxin Zhong

We present the results of experiments performed using a team of small autonomous underwater vehicles (AUVs) to determine the location of an isobath. The primary contributions of this work are (1) the development of a novel objective…

Robotics · Computer Science 2024-12-30 Benjamin Biggs , Daniel J. Stilwell , Harun Yetkin , James McMahon

Accurate perception of dynamic obstacles is essential for autonomous robot navigation in indoor environments. Although sophisticated 3D object detection and tracking methods have been investigated and developed thoroughly in the fields of…

Robotics · Computer Science 2025-03-03 Zhefan Xu , Haoyu Shen , Xinming Han , Hanyu Jin , Kanlong Ye , Kenji Shimada

We propose an experiment for the first proof of the type I electric Aharonov-Bohm effect in an ion interferometer for hydrogen. The performances of three different beam separation schemes are simulated and compared. The coherent ion beam is…

Few-shot multi-class industrial anomaly detection identifies diverse defects across multiple categories using a single unified model and limited normal samples. Although vision-language models offer strong generalization, modeling multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Runzhi Deng , Yundi Hu , Xinshuang Zhang , Zhao Wang , Xixi Liu , Wang-Zhou Dai , Caifeng Shan , Fang Zhao

This paper studies an integrated sensing and communication (ISAC) system where a multi-antenna base station (BS) aims to communicate with a single-antenna user in the downlink and sense the unknown and random angle parameter of a target via…

Information Theory · Computer Science 2024-05-24 Chan Xu , Shuowen Zhang

A significant barrier to deploying autonomous vehicles (AVs) on a massive scale is safety assurance. Several technical challenges arise due to the uncertain environment in which AVs operate such as road and weather conditions, errors in…

Artificial Intelligence · Computer Science 2019-10-08 Majid Khonji , Jorge Dias , Lakmal Seneviratne

Cellular-connected unmanned aerial vehicles (UAVs) represent a promising technology for extending the coverage of 5G and 6G networks in a cost-effective manner. Additionally, Massive multiple-input multiple-output (MIMO) serves as an…

Signal Processing · Electrical Eng. & Systems 2024-01-01 Byunghyun Lee , Andrew Marcum , David Love , James Krogmeier

High-frequency bands such as millimeter-wave and terahertz require narrow beams due to path loss and shadowing. Beam alignment (BA) methods allow the transceivers to adjust the directions of these beams efficiently by exploiting the channel…

Information Theory · Computer Science 2022-05-17 Ozlem Yildiz , Abbas Khalili , Elza Erkip

This paper presents algorithms to navigate and avoid obstacles for an in-door autonomous mobile robot. A laser range finder is used to obtain 3D images of the environment. A new algorithm, namely 3D-to-2D image pressure and barriers…

Robotics · Computer Science 2016-11-30 T. T. Hoang , D. T. Hiep , P. M. Duong , N. T. T. Van , B. G. Duong , T. Q. Vinh

Multibeam systems with hundreds of beams have been recently deployed in order to provide higher capacities by employing fractional frequency reuse. Furthermore, employing full frequency reuse and precoding over multiple beams has shown…

Information Theory · Computer Science 2015-03-19 Gan Zheng , Symeon Chatzinotas , Bjorn Ottersten

Studies predict that demand for autonomous vehicles will increase tenfold between 2019 and 2026. However, recent high-profile accidents have significantly impacted consumer confidence in this technology. The cause for many of these…

Robotics · Computer Science 2020-09-09 Sanjay Seshan

Millimeter wave (mmWave) communication, utilizing beamforming techniques to address the inherent path loss limitation, is considered as one of the key technologies to support ever increasing high throughput and low latency demands of…

Networking and Internet Architecture · Computer Science 2026-02-17 Muhammad Baqer Mollah , Honggang Wang , Mohammad Ataul Karim , Hua Fang

In this paper, sensing-assisted secure communication in a multi-user multi-eavesdropper integrated sensing and communication (ISAC) system is investigated. Confidential communication signals and dedicated sensing signals are jointly…

Signal Processing · Electrical Eng. & Systems 2025-10-07 Fanghao Xia , Zesong Fei , Xinyi Wang , Nanchi Su , Zhaolin Wang , Yuanwei Liu , Jie Xu

Optical interferometers increasingly use single-mode fibers as spatial filters to convert varying wavefront distortion into intensity fluctuations which can be monitored for accurate calibration of fringe amplitudes. Here I propose using an…

Astrophysics · Physics 2009-11-06 J. D. Monnier

Urban Air Mobility is a new concept of regional aviation that has been growing in popularity as a solution to the issue of ever-increasing ground traffic. Electric vehicles with vertical take-off and landing capabilities are being developed…

Human-Computer Interaction · Computer Science 2023-12-01 Isha Panchal , Sophie F. Armanini , Isabel C. Metz

Obstacle avoidance for small unmanned aircraft is vital for the safety of future urban air mobility (UAM) and Unmanned Aircraft System (UAS) Traffic Management (UTM). There are many techniques for real-time robust drone guidance, but many…

Robotics · Computer Science 2021-11-16 Jueming Hu , Xuxi Yang , Weichang Wang , Peng Wei , Lei Ying , Yongming Liu