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Reconfigurable intelligent surface (RIS) or intelligent reflecting surface (IRS) has been an attractive technology for future wireless communication and sensing systems. However, in the practical RIS, the mutual coupling effect among RIS…

信号处理 · 电气工程与系统科学 2023-09-26 Zhimin Chen , Peng Chen , Le Zheng , Yudong Zhang

We present adaptive strategies for antenna selection for Direction of Arrival (DoA) estimation of a far-field source using TDM MIMO radar with linear arrays. Our treatment is formulated within a general adaptive sensing framework that uses…

系统与控制 · 计算机科学 2017-04-12 David Mateos-Núñez , María A. González-Huici , Renato Simoni , Stefan Brüggenwirth

Accurate indoor localization has long been a challenging problem due to the presence of multipath. Joint direction-of-arrival (DOA) and time delay (TD) estimation is a promising technique for accurate indoor Localization in next generation…

信息论 · 计算机科学 2021-11-16 Fei Wen , Peilin Liu , Haichao Wei , Yi Zhang

This paper presents the performance analysis of directions of arrival estimation techniques, Subspace and the Non-Subspace methods. In this paper, exploring the analysis category of high resolution and super resolution algorithms,…

其他计算机科学 · 计算机科学 2012-11-20 Sai Suhas Balabadrapatruni

In this paper, a fast algorithm for the Direction Of Arrival (DOA) estimation of radiating sources, based on partial covariance matrix and without eigende- composition of incoming signals is extended to two dimensional problem of joint…

信息论 · 计算机科学 2015-03-18 Y. Khmou , S. Safi

This paper investigates parametric direction-of-arrival (DOA) estimation in a particular context: i) each sensor is characterized by an unknown complex gain and ii) the array consists of a collection of subarrays which are substantially…

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

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…

系统与控制 · 电气工程与系统科学 2024-12-24 Mohammadreza Doostmohammadian , Themistoklis Charalambous

In multi-speaker environments the direction of arrival (DOA) of a target speaker is key for improving speech clarity and extracting target speaker's voice. However, traditional DOA estimation methods often struggle in the presence of noise,…

声音 · 计算机科学 2024-12-30 Zixuan Li , Shulin He , Xueliang Zhang

Direction-of-Arrival (DOA) estimation in sensor arrays faces limitations under demanding conditions, including low signal-to-noise ratio, single-snapshot scenarios, coherent sources, and unknown source counts. Conventional beamforming…

信号处理 · 电气工程与系统科学 2025-10-14 Xuyao Deng , Yong Dou , Kele Xu

Sound source localization is crucial in acoustic sensing and monitoring-related applications. In this paper, we do a comprehensive analysis of improvement in sound source localization by combining the direction of arrivals (DOAs) with their…

音频与语音处理 · 电气工程与系统科学 2022-12-13 Ruchi Pandey , Shreyas Jaiswal , Huy Phan , Santosh Nannuru

We introduce an interpretable deep learning approach for direction of arrival (DOA) estimation with a single snapshot. Classical subspace-based methods like MUSIC and ESPRIT use spatial smoothing on uniform linear arrays for single snapshot…

信号处理 · 电气工程与系统科学 2023-12-01 Ruxin Zheng , Shunqiao Sun , Hongshan Liu , Honglei Chen , Jian Li

We address the challenging problem of estimating the directions-of-arrival (DOAs) of multiple off-grid signals using a single snapshot of one-bit quantized measurements. Conventional DOA estimation methods face difficulties in tackling this…

信号处理 · 电气工程与系统科学 2025-10-23 Yunqiao Hu , Shunqiao Sun , Yimin D. Zhang

Horizontal line arrays are often employed in underwater environments to estimate the direction of arrival (DOA) of a weak signal. Conventional beamforming (CB) is robust but has wide beamwidths and high-level sidelobes. High-resolution…

信号处理 · 电气工程与系统科学 2020-12-09 Qi Zhang , Jiang Zhu , Yuantao Gu , Zhiwei Xu

At hybrid analog-digital (HAD) transceiver, an improved HAD rotational invariance techniques (ESPRIT), called I-HAD-ESPRIT, is proposed to measure the direction of arrival (DOA) of desired user, where the phase ambiguity due to HAD…

信息论 · 计算机科学 2018-12-04 Feng Shu , Ling Xu , Jinyong Lin , Jingsong Hu , Lingqing Gui , Jun Li , Jiangzhou Wang

We propose a joint estimation method for the Direction-of-Arrival (DoA) and the Noise Covariance Matrix (NCM) tailored for beamforming applications. Building upon an existing NCM framework, our approach simplifies the estimation procedure…

音频与语音处理 · 电气工程与系统科学 2026-01-21 Vitor Gelsleichter Probst Curtarelli , Stephan Paul , Anderson Wedderhoff Spengler

Direction of Arrival (DOA) estimation of mixed uncorrelated and coherent sources is a long existing challenge in array signal processing. Application of compressive sensing to array signal processing has opened up an exciting class of…

信号处理 · 电气工程与系统科学 2018-09-10 Abhishek Aich , P. Palanisamy

In this paper, we introduce a novel algorithm that can dramatically reduce the number of antenna elements needed to accurately predict the direction of arrival (DOA) for multiple input multiple output (MIMO) radar. The new proposed…

信号处理 · 电气工程与系统科学 2020-09-16 Udaya Sampath K. P. Miriya Thanthrige , Aya Mostafa Ahmed , Aydin Sezgin

Direction of Arrival (DoA) estimation techniques face a critical trade-off, as classical methods often lack accuracy in challenging, low signal-to-noise ratio (SNR) conditions, while modern deep learning approaches are too energy-intensive…

信号处理 · 电气工程与系统科学 2026-01-28 Rajat Bhattacharjya , Woohyeok Park , Arnab Sarkar , Hyunwoo Oh , Mohsen Imani , Nikil Dutt

In this paper, we study the problem of joint wideband spectrum sensing and direction-of-arrival (DoA) estimation in a sub-Nyquist sampling framework. Specifically, considering a scenario where a few uncorrelated narrowband signals spread…

信号处理 · 电气工程与系统科学 2019-10-01 Feiyu Wang , Jun Fang , Huiping Duan , Hongbin Li