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Deep subwavelength RF imaging with atomic Rydberg sensors has overcome fundamental limitations of traditional antennas and enabled ultra-wideband detection of omni-directional time varying fields all in a compact form factor. However, in…

Angle of Arrival (AoA) estimation has found its way to a wide range of applications. Much attention have been paid to study different techniques for AoA estimation and its applications for jamming suppression, however, security…

信息论 · 计算机科学 2016-07-05 Amr Abdelaziz , C. Emre Koksal , Hesham El Gamal

On the of the applications in the realm of the Internet-of-Things (IoT) is real-time localization of assets in specific application environments where satellite based global positioning is unviable. Numerous approaches for localization…

信号处理 · 电气工程与系统科学 2022-10-24 Nuno Paulino , Luís M. Pessoa , André Branquinho , Edgar Gonçalves

Channel estimation is of critical importance in millimeter-wave (mmWave) multiple-input multiple-output (MIMO) systems. Due to the use of large antenna arrays, low-complexity mmWave specific channel estimation algorithms are required. In…

信息论 · 计算机科学 2016-12-26 Dalin Zhu , Junil Choi , Robert W. Heath

Direction-of-arrival (DOA) estimation refers to the process of retrieving the direction information of several electromagnetic waves/sources from the outputs of a number of receiving antennas that form a sensor array. DOA estimation is a…

信息论 · 计算机科学 2017-01-10 Zai Yang , Jian Li , Petre Stoica , Lihua Xie

Angle of arrival (AOA) is widely used to locate a wireless signal emitter in unmanned aerial vehicle (UAV) localization. Compared with received signal strength (RSS) and time of arrival (TOA), it has higher accuracy and is not sensitive to…

信号处理 · 电气工程与系统科学 2023-05-17 Baihua Shi , Yifan Li , Guilu Wu , Shihao Yan , Feng Shu

This paper proposes design techniques for partially-calibrated sparse linear subarrays and algorithms to perform direction-of-arrival (DOA) estimation. First, we introduce array architectures that incorporate two distinct array categories,…

信号处理 · 电气工程与系统科学 2024-09-04 W. Leite , R. C. de Lamare , Y. Zakharov , W. Liu , M. Haardt

Accurately localizing multiple sources is a critical task with various applications in wireless communications, such as emergency services, including natural post-disaster search and rescue operations. However, scenarios where the receiver…

信号处理 · 电气工程与系统科学 2025-04-10 Amir Mansourian , Alireza Fadakar , Saeed Akhavan , Behrouz Maham

The continuously increasing bandwidth and antenna aperture available in wireless networks laid the foundation for developing competitive positioning solutions relying on communications standards and hardware. However, poor propagation…

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…

信号处理 · 电气工程与系统科学 2021-10-01 Majdoddin Esfandiari , Sergiy A. Vorobyov

Conventional direction of arrival (DOA) estimators are based on array processing using either time differences or beamforming. The proposed approach is based on the received power at each microphone, which enables simple hardware, low…

信号处理 · 电气工程与系统科学 2025-09-16 Gustav Zetterqvist , Fredrik Gustafsson , Gustaf Hendeby

The angle of Arrival (AoA) estimation is of great interest in modern communication systems. Traditional maximum likelihood-based iterative algorithms are sensitive to initialization and cannot be used online. We propose a Bayesian method to…

信号处理 · 电气工程与系统科学 2021-10-18 Akshay Sharma , Nancy Nayak , Sheetal Kalyani

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…

信息论 · 计算机科学 2017-01-10 Angélique Drémeau , Cédric Herzet

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…

网络与互联网体系结构 · 计算机科学 2012-06-19 Bharath Ananthasubramaniam , Upamanyu Madhow

Estimating the direction of arrival (DOA) of sources is an important problem in aerospace and vehicular communication, localization and radar. In this paper, we consider a challenging multi-source DOA estimation task, where the receiving…

信号处理 · 电气工程与系统科学 2022-02-17 Tom Tirer , Oded Bialer

Sensing emerges as a critical challenge in 6G networks, which require simultaneous communication and target sensing capabilities. State-of-the-art super-resolution techniques for the direction of arrival (DoA) estimation encounter…

信号处理 · 电气工程与系统科学 2025-06-17 Murat Babek Salman , Emil Björnson

An approach to the estimation of the Direction of Arrival (DOA) of wide-band signals with a planar microphone array is presented. Our algorithm estimates an unambiguous DOA using a single planar array in which the microphones are placed…

声音 · 计算机科学 2018-11-19 Rudolf Byker , Thomas Niesler

We propose modeling an angle-of-arrival (AOA) positioning measurement as a von Mises-Fisher (VMF) distributed unit vector instead of the conventional normally distributed azimuth and elevation measurements. Describing the 2-dimensional AOA…

系统与控制 · 计算机科学 2017-09-11 Henri Nurminen , Laura Suomalainen , Simo Ali-Löytty , Robert Piché

Due to the narrow beamwidths of laser Gaussian beams, accurate tracking of laser beam's angle-of-arrival is an important problem in mobile free-space optical communications. In most optical receivers today, fine tracking of angle-of-arrival…

信号处理 · 电气工程与系统科学 2023-08-01 Ming-Cheng Tsai , Muhammad Salman Bashir , Mohamed-Slim Alouini

Automotive Multiple-Input Multiple-Output (MIMO) radars have gained significant traction in Advanced Driver Assistance Systems (ADAS) and Autonomous Vehicles (AV) due to their cost-effectiveness, resilience to challenging operating…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Zhaoxuan Zhu , Chulong Chen , Bo Yang