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Aerial robots play a vital role in various applications where the situational awareness of the robots concerning the environment is a fundamental demand. As one such use case, drones in GPS-denied environments require equipping with…

Robotics · Computer Science 2024-06-24 Ahmed Radwan , Ali Tourani , Hriday Bavle , Holger Voos , Jose Luis Sanchez-Lopez

Absolute Visual Localization (AVL) enables an Unmanned Aerial Vehicle (UAV) to determine its position in GNSS-denied environments by establishing geometric relationships between UAV images and geo-tagged reference maps. While many previous…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yibin Ye , Xichao Teng , Shuo Chen , Leqi Liu , Kun Wang , Xiaokai Song , Zhang Li

Radio maps find numerous applications in wireless communications and mobile robotics tasks, including resource allocation, interference coordination, and mission planning. Although numerous techniques have been proposed to construct radio…

Signal Processing · Electrical Eng. & Systems 2022-01-14 Raju Shrestha , Daniel Romero , Sundeep Prabhakar Chepuri

This study investigates unmanned aerial vehicle (UAV) trajectory planning strategies for localizing a target mobile device in emergency situations. The global navigation satellite system (GNSS)-based accurate position information of a…

Signal Processing · Electrical Eng. & Systems 2023-02-24 Halim Lee , Jiwon Seo

Collapsing of structural buildings has been sighted commonly and the presence of potential faults has proved to be damaging to the buildings, resulting in accidents. It is essential to continuously monitor any building for faults where…

Ultra-wideband technology has emerged in recent years as a robust solution for localization in GNSS denied environments. In particular, its high accuracy when compared to other wireless localization solutions is enabling a wider range of…

Signal Processing · Electrical Eng. & Systems 2022-04-12 Wang Shule , Carmen Martínez Almansa , Jorge Peña Queralta , Zhuo Zou , Tomi Westerlund

To address the ever-growing connectivity demands of wireless communications, the adoption of ingenious solutions, such as Unmanned Aerial Vehicles (UAVs) as mobile Base Stations (BSs), is imperative. In general, the location of a UAV Base…

Networking and Internet Architecture · Computer Science 2022-04-12 Ali Murat Demirtas , Mehmet Saygin Seyfioglu , Irem Bor-Yaliniz , Bulent Tavli , Halim Yanikomeroglu

Global localisation from visual data is a challenging problem applicable to many robotics domains. Prior works have shown that neural networks can be trained to map images of an environment to absolute camera pose within that environment,…

Robotics · Computer Science 2024-01-03 Christopher J. Holder , Muhammad Shafique

This paper considers the challenge of localizing ground users with the help of a radio-equipped unmanned aerial vehicle (UAV) that collects measurements from users. We utilize time-of-arrival (ToA) measurements estimated from the radio…

Information Theory · Computer Science 2025-03-26 Omid Esrafilian , Rakesh Mundlamuri , Florian Kaltenberger , Raymond Knopp , David Gesbert

Reliable backup localization for unmanned aerial vehicles (UAVs) operating in GNSS-denied nighttime conditions remains an open challenge due to the severe modality gap between daytime RGB maps and nighttime thermal imagery. This work…

Robotics · Computer Science 2026-04-30 Ryan Allen , Melissa Greeff

It is expected that unmanned aerial vehicles (UAVs) will play a vital role in future communication systems. Optimum positioning of UAVs, serving as base stations, can be done through extensive field measurements or ray tracing simulations…

Machine Learning · Computer Science 2021-12-30 Ibrahim Shoer , Bahadir K. Gunturk , Hasan F. Ates , Tuncer Baykas

Radio maps are emerging as a popular means to endow next-generation wireless communications with situational awareness. In particular, radio maps are expected to play a central role in unmanned aerial vehicle (UAV) communications since they…

Signal Processing · Electrical Eng. & Systems 2020-05-07 Daniel Romero , Raju Shrestha , Yves Teganya , Sundeep Prabhakar Chepuri

UAVs have been widely used in visual inspections of buildings, bridges and other structures. In either outdoor autonomous or semi-autonomous flights missions strong GPS signal is vital for UAV to locate its own positions. However, strong…

Robotics · Computer Science 2019-04-11 Zhexiong Shang , Zhigang Shen

The use of unmanned aerial vehicles (UAV) as flying radio access network (RAN) nodes offers a promising complement to traditional fixed terrestrial deployments. More recently yet still in the context of wireless networks, drones have also…

Information Theory · Computer Science 2022-05-09 David Gesbert , Omid Esrafilian , Junting Chen , Rajeev Gangula , Urbashi Mitra

Localization can be achieved by different sensors and techniques such as a global positioning system (GPS), wifi, ultrasonic sensors, and cameras. In this paper, we focus on the laser-based localization method for unmanned aerial vehicle…

Unmanned aerial vehicle (UAV)-based base stations offer a promising solution in emergencies where the rapid deployment of cutting-edge networks is crucial for maximizing life-saving potential. Optimizing the strategic positioning of these…

Artificial Intelligence · Computer Science 2025-04-08 Mario Rico Ibanez , Azim Akhtarshenas , David Lopez-Perez , Giovanni Geraci

In wireless sensors networks, integrating localization and communications techniques is crucial for efficient spectrum and hardware utilization. In this paper, we present a novel framework of unmanned aerial vehicle (UAV)-aided localization…

Signal Processing · Electrical Eng. & Systems 2024-06-04 Tianhao. Liang , Tingting. Zhang , Sheng. Zhou , Wentao. Liu , Dong. Li , Qinyu. Zhang

Navigation and localization of UAVs present a challenge when global navigation satellite systems (GNSS) are disrupted and unreliable. Traditional techniques, such as simultaneous localization and mapping (SLAM) and visual odometry (VO),…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Haoling Li , Jiuniu Wang , Zhiwei Wei , Wenjia Xu

Absolute localization, aiming to determine an agent's location with respect to a global reference, is crucial for unmanned aerial vehicles (UAVs) in various applications, but it becomes challenging when global navigation satellite system…

Computer Vision and Pattern Recognition · Computer Science 2025-06-12 Xiangkai Zhang , Xiang Zhou , Mao Chen , Yuchen Lu , Xu Yang , Zhiyong Liu

In this paper, we study the trajectory optimization of a cellular-connected unmanned aerial vehicle (UAV) which aims to sense the location of a target while maintaining satisfactory communication quality with the ground base stations…

Information Theory · Computer Science 2024-04-17 Xiangming Du , Shuowen Zhang , Liang Liu