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Localizing moving targets in unknown harsh environments has always been a severe challenge. This letter investigates a novel localization system based on multi-agent networks, where multiple agents serve as mobile anchors broadcasting their…

Signal Processing · Electrical Eng. & Systems 2021-09-27 Qin Shi , Xiaowei Cui , Sihao Zhao , Mingquan Lu

This paper addresses source localization problem in a random shallow water channel. We present an extension of the generalized MUSIC method to the case, %in which when the signal correlation matrix is imprecisely known. The algorithm is…

Atmospheric and Oceanic Physics · Physics 2014-10-29 Alexander Sazontov , Ivan Smirnov , Alexander Matveyev

Propagation delays are intensively used for Structural Health Monitoring or Sensor Network Localization. In this paper, we study the performances of acoustic propagation delay estimation between two sensors, using sources of opportunity…

Classical Physics · Physics 2015-02-23 Rémy Vincent , Mikael Carmona , Olivier Michel , Jean-Louis Lacoume

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

Millimeter-wave (mmWave) communication is a promising solution for achieving high data rate and low latency in 5G wireless cellular networks. Since directional beamforming and antenna arrays are exploited in the mmWave networks, accurate…

Information Theory · Computer Science 2020-11-26 Jiajun He , Young Jin Chun

We propose a direction-of-arrival (DOA) estimation method for Sound Event Localization and Detection (SELD). Direct estimation of DOA using a deep neural network (DNN), i.e. completely-datadriven approach, achieves high accuracy. However,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-18 Masahiro Yasuda , Yuma Koizumi , Shoichiro Saito , Hisashi Uematsu , Keisuke Imoto

In this paper we focus on the problem of estimating the directions of arrival (DOA) of a set of incident plane waves. Unlike many previous works, which assume that the received observations are only affected by additive noise, we consider…

Information Theory · Computer Science 2017-01-10 Angélique Drémeau , Cédric Herzet

Localization is an important required task for enabling vehicle autonomy for underwater vehicles. Localization entails the determination of position of the center of mass and orientation of a vehicle from the available measurements. In this…

Optimization and Control · Mathematics 2019-07-03 Sai Krishna Kanth Hari , Kaarthik Sundar , Jose Braga , Joao Teixeira , Joao Sousa , Swaroop Darbha

The problem of direction-of-arrival (DOA) estimation in the presence of nonuniform sensor noise is considered and a novel algorithm is developed. The algorithm consists of three phases. First, the diagonal nonuniform sensor noise covariance…

Signal Processing · Electrical Eng. & Systems 2021-10-01 Majdoddin Esfandiari , Sergiy A. Vorobyov

We present novel lower bounds on the localization error using a network of satellites randomly deployed on a sphere around Earth. Our new analysis approach characterizes the localization performance by its asymptotic behavior as the number…

Signal Processing · Electrical Eng. & Systems 2022-06-08 Hodaya Halevi , Itsik Bergel , Yair Noam

Underwater acoustic (UWA) communications generally rely on cognitive radio (CR)-based ad-hoc networks due to challenges such as long propagation delay, limited channel resources, and high attenuation. To address the constraints of limited…

Signal Processing · Electrical Eng. & Systems 2025-06-17 Minwoo Kim , Youngchol Choi , Yeongjun Kim , Eojin Seo , Hyun Jong Yang

The paper aims to reveal the relationship between the performance of moving object tracking algorithms and the tracking anchors (station) deployment. The Dilution of Precision (DoP) for Time difference of arrival (TDoA) technique with…

Signal Processing · Electrical Eng. & Systems 2021-12-13 Fengyun Zhang , Hao Li , Yulong Ding , Shuang-Hua Yang , Li Yang

We compared the results from the JSOC pipeline for horizontal flow components and the perturbations of the speed of sound at set of depths with equivalent results from an independently implemented pipeline using a different time-distance…

Solar and Stellar Astrophysics · Physics 2019-09-04 David Korda , Michal Švanda , Junwei Zhao

Precise localization is one key element of the Internet of Things (IoT). Especially concepts for position estimation when Global Navigation Satellite Systems (GNSS) are unavailable have moved into the focus. One crucial component for…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-06-09 Thomas Maul , Sebastian Klob , Joerg Robert

In this paper, a new multi-source wideband direction of arrival (MSW-DOA) estimation method is proposed for the signal with non-uniform distribution using the sub-array of uniform linear array. Different from conventional methods, based on…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-12 Jing Zhou , Changchun Bao

The localization of directional RF emitters presents significant challenges for electronic warfare applications. Traditional localization methods, designed for omnidirectional emitters, experience degraded performance when applied to…

Signal Processing · Electrical Eng. & Systems 2025-10-30 Fraser Williams , Akila Pemasiri , Dhammika Jayalath , Terry Martin , Clinton Fookes

We study time difference of arrival (TDoA)-based algorithms for drone controller localization and analyze TDoA estimation in multipath channels. Building on TDoA estimation, we propose two algorithms to enhance localization accuracy in…

Information Theory · Computer Science 2025-10-06 Yuhong Wang , Yonghong Zeng , Peng Hui Tan , Sumei Sun , Yugang Ma

In this letter, we apply previous array receiver architecture which employs time-domain sub-Nyquist sampling techniques to jointly estimate frequency and direction-of-arrival(DOA) of narrowband far-field signals. Herein, a more general…

Information Theory · Computer Science 2018-08-15 Liang Liu , Ping Wei

In a visible light positioning (VLP) system, a receiver can estimate its location based on signals transmitted by light emitting diodes (LEDs). In this manuscript, we investigate a quasi-synchronous VLP system, in which the LED transmitters…

Information Theory · Computer Science 2018-12-17 Ertan Kazikli , Sinan Gezici

Intentional and unintentional interferences are an increasing threat for the satellite communications industry. In this paper, we aim to localize an interference with unknown location using frequency of arrival (FoA) technique by only…

Information Theory · Computer Science 2016-08-02 Ashkan Kalantari , Sina Maleki , Symeon Chatzinotas , Björn Ottersten
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