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The accuracy of indoor wireless localization systems can be substantially enhanced by map-awareness, i.e., by the knowledge of the map of the environment in which localization signals are acquired. In fact, this knowledge can be exploited…

Information Theory · Computer Science 2014-02-18 Francesco Montorsi , Fabrizio Pancaldi , Giorgio M. Vitetta

Short Range wireless devices are becoming more and more popular for ubiquitous sensor and actuator connectivity in industrial communication scenarios. Apart from communication-only scenarios, there are also mission-critical use cases where…

Signal Processing · Electrical Eng. & Systems 2018-11-30 Raja Sattiraju , Jacob Kochems , Hans D. Schotten

Relative localization is a crucial functional block of any robotic swarm. We address it in a fleet of nano-drones characterized by a 10 cm-scale form factor, which makes them highly versatile but also strictly limited in their onboard power…

In this paper a novel NLOS (Non-Line-of-Sight) identification technique is proposed. In comparison to other methods described in the literature, it discerns a situation when the delayed direct path component is available from when it's…

Signal Processing · Electrical Eng. & Systems 2024-04-25 Marcin Kolakowski , Jozef Modelski

We present a human state estimation framework that allows us to estimate the location, and even the activities, of people in an indoor environment without the requirement that they carry a specific devices with them. To achieve this "device…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Saria Al Laham , Bobak H. Baghi , Pierre-Yves Lajoie , Amal Feriani , Sachini Herath , Steve Liu , Gregory Dudek

Relative localization in the near-field scenario is critically important for unmanned vehicle (UxV) applications. Although related works addressing 2D relative localization problem have been widely studied for unmanned ground vehicles…

Systems and Control · Electrical Eng. & Systems 2025-06-25 Qiangsheng Gao , Ka Ho Cheng , Li Qiu , Zijun Gong

Determining assets position with high accuracy and scalability is one of the most investigated technology on the market. The accuracy provided by satellites-based positioning systems (i.e., GLONASS or Galileo) is not always sufficient when…

Signal Processing · Electrical Eng. & Systems 2022-02-16 Luca Santoro , Matteo Nardello , Davide Brunelli , Daniele Fontanelli

The positioning accuracy of the mobile laser scanning (MLS) system can reach the level of centimeter under the conditions where GPS works normally. However, in GPS-denied environments this accuracy can be reduced to the decimeter or even…

Signal Processing · Electrical Eng. & Systems 2019-11-04 WI. Liu , Zhixiong Li , Shuaishuai Sun , Reza Malekian , Zhenjun Ma , Weihua Li

The integration of Non-Terrestrial Networks (NTNs) into 6G networks is one of the most promising ways to achieve significant improvements in capacity, reliability, and global coverage. The design of NTN heavily relies on using channel…

Systems and Control · Electrical Eng. & Systems 2023-04-03 Abdul Saboor , Evgenii Vinogradov , Zhuangzhuang Cui , Sofie Pollin

Precise indoor localization of moving targets is a challenging activity which cannot be easily accomplished without combining different sources of information. In this sense, the combination of different data sources with an appropriate…

Networking and Internet Architecture · Computer Science 2013-05-09 Alberto Savioli , Emanuele Goldoni , Pietro Savazzi , Paolo Gamba

Despite their high accuracy, UWB-based localization systems suffer inaccuracies when deployed in industrial locations with many obstacles due to multipath effects and non-line-of-sight (NLOS) conditions. In such environments, current error…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Dieter Coppens , Adnan Shahid , Eli De Poorter

There has been a growing interest in autonomous systems designed to operate in adverse conditions (e.g. smoke, dust), where the visible light spectrum fails. In this context, Ultra-wideband (UWB) radar is capable of penetrating through such…

Robotics · Computer Science 2025-07-22 Charith Premachandra , Achala Athukorala , U-Xuan Tan

This paper presents a novel robust online calibration framework for Ultra-Wideband (UWB) anchors in UWB-aided Visual-Inertial Navigation Systems (VINS). Accurate anchor positioning, a process known as calibration, is crucial for integrating…

Robotics · Computer Science 2025-08-18 Yizhi Zhou , Jie Xu , Jiawei Xia , Zechen Hu , Weizi Li , Xuan Wang

Global Navigation Satellite Systems (GNSS) are widely used to provide position, velocity, and timing (PVT) information for various applications, including transportation, location-based communication services, and intelligent agriculture.…

Machine Learning · Computer Science 2026-05-21 Pin-Hsun Lee , Harry Leib

Relative positioning between multiple mobile users is essential for many applications, such as search and rescue in disaster areas or human social interaction. Inertial-measurement unit (IMU) is promising to determine the change of position…

Networking and Internet Architecture · Computer Science 2017-04-06 Ran Liu , Chau Yuen , Tri-Nhut Do , Dewei Jiao , Xiang Liu , U-Xuan Tan

Nowadays, accurate localization plays an essential role in many fields, like target tracking and path planning. The challenges of indoor localization include inadequate localization accuracy, unreasonable anchor deployment in complex…

Systems and Control · Electrical Eng. & Systems 2021-12-10 Fengyun Zhang , Li Yang , Yuhuan Liu , Yulong Ding , Shuang-Hua Yang , Hao Li

The combination of ultrawideband (UWB) radios and inertial measurement units (IMU) can provide accurate positioning. To ensure reliable communication, the radios are generally mounted at the extremities of a mobile system whereas the IMUs…

Robotics · Computer Science 2021-08-02 Abhishek Goudar

Driven by applications like Micro Aerial Vehicles (MAVs), driver-less cars, etc, localization solution has become an active research topic in the past decade. In recent years, Ultra Wideband (UWB) emerged as a promising technology because…

Robotics · Computer Science 2018-07-31 Jiaxin Li , Yingcai Bi , Kun Li , Kangli Wang , Feng Lin , Ben M. Chen

In this paper, a sensing-assisted non-line-of-sight (NLoS) identification method for dynamic uncrewed aerial vehicle (UAV) positioning is proposed for the first time. For urban UAV-to-ground scenarios, a new multi-modal…

Signal Processing · Electrical Eng. & Systems 2026-05-14 Huijuan Qiao , Lu Bai , Mingran Sun , Mengyuan Lu , Jiajing Chen , Xiang Cheng

With the recent development of technology, wireless sensor networks (WSN) are becoming an important part of many applications. Knowing the exact location of each sensor in the network is very important issue. Therefore, the localization…

Networking and Internet Architecture · Computer Science 2016-06-27 Biljana Risteska Stojkoska , Vesna Kirandziska