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The problem of off-grid direction-of-arrival (DOA) estimation is investigated. We develop a grid-based method to jointly estimate the closest spatial frequency (the sine of DOA) grids, and the gaps between the estimated grids and the…

信号处理 · 电气工程与系统科学 2022-03-01 Huiping Huang , Hing Cheung So , Abdelhak M. Zoubir

A novel approach combining agile beam switching with deep learning to enhance the speed and accuracy of Direction of Arrival (DOA) estimation for millimeter-wave (mmWave) phased array systems with low-complexity hardware implementations is…

信号处理 · 电气工程与系统科学 2025-08-19 Arav Sharma , Lei Chi , Ari Gebhardt , Alon S. Levin , Timothy R. Hoerning , Sam Keene

The uniform white noise assumption is one of the basic assumptions in most of the existing directional-of-arrival (DOA) estimation methods. In many applications, however, the non-uniform white noise model is more adequate. Then the noise…

信息论 · 计算机科学 2021-09-21 M. Esfandiari , S. A. Vorobyov , S. Aliban , M. Karimi

This paper presents a tool for the analysis, and simulation of direction-of-arrival (DOA) estimation in wireless mobile communication systems over the fading channel. It reviews two methods of Direction of arrival (DOA) estimation…

网络与互联网体系结构 · 计算机科学 2011-12-12 A. V. Meenakshi , V. Punitham , R. Kayalvizhi , S. Asha

In this paper, we show that a multi-mode antenna (MMA) is an interesting alternative to a conventional phased antenna array for direction-of-arrival (DoA) estimation. By MMA we mean a single physical radiator with multiple ports, which…

信号处理 · 电气工程与系统科学 2019-02-14 Robert Pöhlmann , Sami Alkubti Almasri , Siwei Zhang , Thomas Jost , Armin Dammann , Peter A. Hoeher

Localization using time-difference of arrival (TDOA) has myriad applications, e.g., in passive surveillance systems and marine mammal research. In this paper, we present a Bayesian estimation method that can localize an unknown number of…

信号处理 · 电气工程与系统科学 2024-09-02 Wenyu Zhang , Mohammad Javad Khojasteh , Florian Meyer

The report focuses on three areas in particular: the first is the Received Signal Strength indicator technique, Direction of Arrival technique, and the integration of two algorithms, RSS and DOA, in order to build a hybrid, more robust…

信号处理 · 电气工程与系统科学 2018-06-18 Mohamed AlHajri , Abdulrahman Goian , Muna Darweesh , Rashid AlMemari , Raed Shubair , Luis Weruaga , Ahmed AlTunaiji

High data rate communication with Unmanned Aerial Vehicles (UAV) is of growing demand among industrial and commercial applications since the last decade. In this paper, we investigate enhancing beam forming performance based on signal…

信号处理 · 电气工程与系统科学 2020-09-08 Tianxiao Zhao , Chunbo Luo , Geyong Min , Jianming Zhou , Dechun Guo , Wang Miao , Yang Mi

Nanoscale wireless sensor networks (NWSNs) could be within reach soon using graphene-based antennas, which resonate in 0.1-10 terahertz band. To conserve the limited energy available at nanoscale, it is expected that NWSNs will communicate…

新兴技术 · 计算机科学 2018-07-13 Shree M. Prasad , Trilochan Panigrahi , Mahbub Hassan

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…

音频与语音处理 · 电气工程与系统科学 2022-04-12 Jing Zhou , Changchun Bao

We consider time-of-arrival (ToA) estimation of a first arrival-path for a device working in narrowband Internet-of-Things (NB-IoT) systems. Due to a limited 180 KHz bandwidth used in NB-IoT, the time-domain auto-correlation function (ACF)…

信息论 · 计算机科学 2017-11-13 Sha Hu , Xuhong Li , Fredrik Rusek

Wide-band Direction of Arrival (DOA) estimation with sensor arrays is an essential task in sonar, radar, acoustics, biomedical and multimedia applications. Many state of the art wide-band DOA estimators coherently process frequency binned…

应用统计 · 统计学 2018-03-02 Elio D. Di Claudio , Raffaele Parisi , Giovanni Jacovitti

The direction-of-arrival (DOA) of sound sources is an essential acoustic parameter used, e.g., for multi-channel speech enhancement or source tracking. Complex acoustic scenarios consisting of sources-of-interest, interfering sources,…

音频与语音处理 · 电气工程与系统科学 2022-02-17 Wolfgang Mack , Julian Wechsler , Emanuël A. P. Habets

Accurate and low-power indoor localization is becoming more and more of a necessity to empower novel consumer and industrial applications. In this field, the most promising technology is based on UWB modulation; however, current UWB…

信号处理 · 电气工程与系统科学 2023-12-22 Tobias Margiani , Silvano Cortesi , Milena Keller , Christian Vogt , Tommaso Polonelli , Michele Magno

Switches-based hybrid architecture has attracted much attention, especially in directional-of-arrival (DOA) sensing, due to its ability of significantly reducing the hardware cost by compressing massive multiple-input multiple-output (MIMO)…

信号处理 · 电气工程与系统科学 2025-01-14 Yifan Li , Kang Wei , Linqiong Jia , Jun Zou , Feng Shu , Yaoliang Song , Jiangzhou Wang

Underwater source localization problems are complicated and challenging: a) the sound propagation speed is often unknown and the unpredictable ocean current might lead to the uncertainties of sensor parameters (i.e. position and velocity);…

信号处理 · 电气工程与系统科学 2018-07-26 Bingbing Zhang , Yongchang Hu , Hongyi Wang , Zhaowen Zhuang

Indoor localization systems have become increasingly important in a wide range of applications, including industry, security, logistics, and emergency services. However, the growing demand for accurate localization has heightened concerns…

人工智能 · 计算机科学 2023-06-06 Mohamed Mohsen , Hamada Rizk , Moustafa Youssef

The direction of arrival (DOA) estimation problem is addressed in this letter. A reconfigurable intelligent surface (RIS) aided system for the DOA estimation is proposed. Unlike traditional DOA estimation systems, a low-cost system with…

信号处理 · 电气工程与系统科学 2022-03-22 Peng Chen , Zihan Yang , Zhimin Chen , Ziyu Guo

Standard Direction of Arrival (DOA) estimation methods are typically derived based on the Gaussian noise assumption, making them highly sensitive to outliers. Therefore, in the presence of impulsive noise, the performance of these methods…

机器学习 · 计算机科学 2024-05-28 Y. Li , W. Xiao , L. Zhao , Z. Huang , Q. Li , L. Li , R. C. de Lamare

Optical fibers have long been employed as sensors in a wide range of commercial systems. Distributed Acoustic Sensing (DAS) extends this concept by enabling the detection and localization of acoustic sources along the fiber, using…

信号处理 · 电气工程与系统科学 2025-09-25 Knut H. Grythe , Jan Erik Håkegård