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Global navigation satellite systems (GNSS) are one of the utterly popular sources for providing globally referenced positioning for autonomous systems. However, the performance of the GNSS positioning is significantly challenged in urban…

Robotics · Computer Science 2021-11-24 Weisong Wen , Li-Ta Hsu

In regions where global navigation satellite systems (GNSS) signals are unavailable, such as underground areas and tunnels, GNSS simulators can be deployed for transmitting simulated GNSS signals. Then, a GNSS receiver in the simulator…

Signal Processing · Electrical Eng. & Systems 2023-06-08 Woohyun Kim , Jiwon Seo

Context Progresses in GNSS-based solution introduction in rail applications GNSS (Global Navigation Satellite System) is now used in most of our travels and each of our smartphone apps. Most of the usages are not safety-critical. But Europe…

Artificial Intelligence · Computer Science 2024-10-25 Juliette Marais , Quentin Mayolle , Martin Fasquelle , Vincent Tardif , Emilie Chéneau-Grehalle

The increasing complexity of wireless environments, characterized by user mobility and dynamic obstructions, poses challenges for the maintenance of Line-of-Sight (LoS) connectivity. Mobile base stations (gNBs) stand as a promising solution…

Networking and Internet Architecture · Computer Science 2025-08-06 Pedro Duarte , André Coelho , Manuel Ricardo

The volume of mobile data traffic has been driven to an unprecedented high level due to the proliferation of smartphones/mobile devices that support a wide range of broadband applications and services, requiring a next generation mobile…

Information Theory · Computer Science 2018-07-20 Yinan Qi , Mythri Hunukumbure , Hyungju Nam , Hyunil Yoo , Saidhiraj Amuru

GNSS are indispensable for various applications, but they are vulnerable to spoofing attacks. The original receiver autonomous integrity monitoring (RAIM) was not designed for securing GNSS. In this context, RAIM was extended with wireless…

Cryptography and Security · Computer Science 2024-02-07 Wenjie Liu , Panos Papadimitratos

A distributed spatio-temporal information based cooperative positioning (STICP) algorithm is proposed for wireless networks that require three-dimensional (3D) coordinates and operate in the global navigation satellite system (GNSS) denied…

Signal Processing · Electrical Eng. & Systems 2023-05-25 Yue Cao , Shaoshi Yang , Zhiyong Feng , Lihua Wang , Lajos Hanzo

Global Navigation Satellite System (GNSS) provides Positioning, Navigation, and Timing (PNT) services for autonomous vehicles (AVs) using satellites and radio communications. Due to the lack of encryption, open-access of the coarse…

Robotics · Computer Science 2022-03-10 Sagar Dasgupta , Mizanur Rahman , Mhafuzul Islam , Mashrur Chowdhury

In urban areas, global navigation satellite system (GNSS) signals are often reflected or blocked by buildings, thus resulting in large positioning errors. In this study, we proposed a machine learning approach for global positioning system…

Networking and Internet Architecture · Computer Science 2022-08-10 Sanghyun Kim , Jungyun Byun , Kwansik Park

The transition toward cognitive global navigation satellite system (GNSS) receivers requires accurate interference classification to trigger adaptive mitigation strategies. However, conventional methods relying on Time-Frequency Analysis…

Signal Processing · Electrical Eng. & Systems 2026-02-03 Zhihan Zeng , Hongyuan Shu , Kaihe Wang , Lu Chen , Amir Hussian , Yanjun Huang , Junchu Zhao , Yue Xiu , Zhongpei Zhang

This paper proposes a machine learning-assisted channel estimation approach for massive MIMO systems, leveraging DNNs to outperform traditional LS and MMSE methods. In 5G and beyond, accurate channel estimation mitigates pilot contamination…

Signal Processing · Electrical Eng. & Systems 2025-10-16 Haoran He

The accuracy and reliability of vehicle localization on roads are crucial for applications such as self-driving cars, toll systems, and digital tachographs. To achieve accurate positioning, vehicles typically use global navigation satellite…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Lucas Heublein , Nisha L. Raichur , Tobias Feigl , Tobias Brieger , Fin Heuer , Lennart Asbach , Alexander Rügamer , Felix Ott

Detecting Resident Space Objects (RSOs) and preventing collisions with other satellites is crucial. Recently, deep convolutional neural networks (DCNNs) have shown superior performance in object detection when large-scale datasets are…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Zhe Chen , Yang Yang , Anne Bettens , Youngho Eun , Xiaofeng Wu

Autonomous shipping has recently gained much interest in the research community. However, little research focuses on inland - and port navigation, even though this is identified by countries such as Belgium and the Netherlands as an…

Millimeter-wave (mmWave) 5G New Radio (NR) communication systems, with their high-resolution antenna arrays and extensive bandwidth, offer a transformative opportunity for high-throughput data transmission and advanced environmental…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Tao Du , Jie Yang , Fan Liu , Jiaxiang Guo , Shuqiang Xia , Chao-Kai Wen , Shi Jin

The global navigation satellite systems (GNSS) play a vital role in transport systems for accurate and consistent vehicle localization. However, GNSS observations can be distorted due to multipath effects and non-line-of-sight (NLOS)…

Robotics · Computer Science 2024-02-20 Haoming Zhang , Zhanxin Wang , Heike Vallery

Many multi-sensor navigation systems urgently demand accurate positioning initialization from global navigation satellite systems (GNSSs) in challenging static scenarios. However, ground blockages against line-of-sight (LOS) signal…

Signal Processing · Electrical Eng. & Systems 2023-01-03 Yiran Luo , Li-Ta Hsu , Yang Jiang , Baoyu Liu , Zhetao Zhang , Yan Xiang , Naser El-Sheimy

To help future mobile agents plan their movement in harsh environments,a predictive model has been designed to determine what areas would be favorable for Global Navigation Satellite System (GNSS) positioning. The model is able to predict…

This paper provides an overview of operational applications of GNSS-R, and describes Oceanpal, an inexpensive, all-weather, passive instrument for remote sensing of the ocean and other water surfaces. This instrument is based on the use of…

Atmospheric and Oceanic Physics · Physics 2007-05-23 G. Ruffini , O. Germain , F. Soulat , M. Taani , M. Caparrini

Most prior methods for learning navigation policies require access to simulation environments, as they need online policy interaction and rely on ground-truth maps for rewards. However, building simulators is expensive (requires manual…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Meera Hahn , Devendra Chaplot , Shubham Tulsiani , Mustafa Mukadam , James M. Rehg , Abhinav Gupta