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We investigate the problem of time-of-arrival (TOA) based localization under possible non-line-of-sight (NLOS) propagation conditions. To robustify the squared-range-based location estimator, we follow the maximum correntropy criterion,…

Signal Processing · Electrical Eng. & Systems 2021-09-13 Wenxin Xiong , Christian Schindelhauer , Hing Cheung So , Zhi Wang

We propose a linear time-difference-of-arrival (TDOA) measurement model to improve \textit{distributed} estimation performance for localized target tracking. We design distributed filters over sparse (possibly large-scale) communication…

Systems and Control · Electrical Eng. & Systems 2022-04-27 Mohammadreza Doostmohammadian , Themistoklis Charalambous

In this paper, a single Unmanned-Aerial-Vehicle (UAV)-aided localization algorithm which uses both Doppler and Time of Arrival (ToA) measurements is presented. In contrast to Doppler-based localization algorithms which are based on…

Signal Processing · Electrical Eng. & Systems 2025-10-03 Samaneh Motie , Hadi Zayyani , Mohammad Salman , Hasan Abu Hilal

Passive source localization is often performed using time difference of arrival (TDOA) measurements, frequency difference of arrival (FDOA) measurements, direction of arrival (DOA) measurements, or a combination of all of these. For a…

Signal Processing · Electrical Eng. & Systems 2018-08-15 Karleigh J. Cameron , Samuel J. Pine

Underwater vehicles have emerged as a critical technology for exploring and monitoring aquatic environments. The deployment of multi-vehicle systems has gained substantial interest due to their capability to perform collaborative tasks with…

Robotics · Computer Science 2025-06-02 Mingyang Yang , Zeyu Sha , Feitian Zhang

We consider the problem of joint three-dimensional localization and synchronization for a single-input single-output (SISO) system in the presence of a reconfigurable intelligent surface (RIS), equipped with a uniform planar array. First,…

Signal Processing · Electrical Eng. & Systems 2021-02-18 Kamran Keykhosravi , Musa Furkan Keskin , Gonzalo Seco-Granados , Henk Wymeersch

Underwater target localization uses real-time sensory measurements to estimate the position of underwater objects of interest, providing critical feedback information for underwater robots. While acoustic sensing is the most acknowledged…

Robotics · Computer Science 2024-09-10 Mingyang Yang , Zeyu Sha , Feitian Zhang

We study the problem of signal source localization using angle of arrival (AOA) measurements. We begin by presenting verifiable geometric conditions for sensor deployment that ensure the model's asymptotic localizability. Then we establish…

Signal Processing · Electrical Eng. & Systems 2025-11-21 Shenghua Hu , Guangyang Zeng , Wenchao Xue , Haitao Fang , Biqiang Mu

The localization problem in a wireless sensor network is to determine the coordination of sensor nodes using the known positions of some nodes (called anchors) and corresponding noisy distance measurements. There is a variety of different…

Optimization and Control · Mathematics 2014-09-19 Pouya Mollaebrahim Ghari , Reza Shahbazian , Seyed Ali Ghorashi

The direction of arrival (DOA) estimation algorithms are crucial in localizing acoustic sources. Traditional localization methods rely on block-level processing to extract the directional information from multiple measurements processed…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-15 Ruchi Pandey , Santosh Nannuru

Localization of radio frequency sources over multipath channels is a difficult problem arising in applications such as outdoor or indoor gelocation. Common approaches that combine ad-hoc methods for multipath mitigation with indirect…

Information Theory · Computer Science 2015-05-14 Nil Garcia , Alexander M. Haimovich , Martial Coulon , Jason A. Dabin

As the cost and technical difficulty of jamming devices continue to decrease, jamming has become one of the major threats to positioning service. Unfortunately, most conventional technologies are vulnerable to jamming attacks due to their…

Signal Processing · Electrical Eng. & Systems 2020-11-06 Zijie Wang , Rongke Liu , Qirui Liu , Lincong Han

When dedicated positioning systems, such as GPS, are unavailable, a mobile device has no choice but to fall back on its cellular network for localization. Due to random variations in the channel conditions to its surrounding base stations…

Information Theory · Computer Science 2015-10-27 Javier Schloemann , Harpreet S. Dhillon , R. Michael Buehrer

We investigate localization of a source based on angle of arrival (AoA) measurements made at a geographically dispersed network of cooperating receivers. The goal is to efficiently compute accurate estimates despite outliers in the AoA…

Networking and Internet Architecture · Computer Science 2012-06-19 Bharath Ananthasubramaniam , Upamanyu Madhow

Received signal strength (RSS)-based wireless localization is easy to implement at low cost. In practice,exact positions of anchors may not be available. This paper focuses on determining the location of a source in the presence of…

Signal Processing · Electrical Eng. & Systems 2021-12-28 Yang Liu , Guojun Han , Yonghua Wang , Zheng Xue , Jing Chen

This paper presents a trustworthy framework for achieving accurate cooperative localization in multiple unmanned aerial vehicle (UAV) systems. The The Cramer-Rao Lower Bound (CRLB) for the three-dimensional (3D) cooperative localization…

Signal Processing · Electrical Eng. & Systems 2025-03-27 Zexin Fang , Bin Han , Hans D. Schotten

The localization of multiple signal sources using sensor arrays has been a long-standing research challenge. While numerous solutions have been developed, signal space methods like MUSIC and ESPRIT have gained widespread popularity. As…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Mehdi Haghshenas , Aamir Mahmood , Mikael Gidlund

3D object detection is crucial for applications like autonomous driving and robotics. However, in real-world environments, variations in sensor data distribution due to sensor upgrades, weather changes, and geographic differences can…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Yecheol Kim , Junho Lee , Changsoo Park , Hyoung won Kim , Inho Lim , Christopher Chang , Jun Won Choi

This paper considers target tracking based on a beacon signal's time-difference-of-arrival (TDOA) to a group of cooperating sensors. The sensors receive a reflected signal from the target where the time-of-arrival (TOA) renders the distance…

Systems and Control · Electrical Eng. & Systems 2024-12-24 Mohammadreza Doostmohammadian , Themistoklis Charalambous

Localization is a fundamental task in robotics for autonomous navigation. Existing localization methods rely on a single input data modality or train several computational models to process different modalities. This leads to stringent…

Robotics · Computer Science 2023-07-04 Muhammad Ibrahim , Naveed Akhtar , Saeed Anwar , Ajmal Mian
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