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Direction-of-arrival (DOA) information is vital for multiple-input-multiple-output (MIMO) systems to complete localization and beamforming tasks. Switched antenna arrays have recently emerged as an effective solution to reduce the cost and…

信号处理 · 电气工程与系统科学 2022-05-24 Hui Chen , Tarig Ballal , Mohammed E. Eltayeb , Tareq Y. Al-Naffouri

Massive multiple input multiple output (MIMO) antenna arrays eventuate a huge amount of circuit costs and computational complexity. To satisfy the needs of high precision and low cost in future green wireless communication, the conventional…

信号处理 · 电气工程与系统科学 2024-05-29 Feng Shu , Baihua Shi , Yiwen Chen , Jiatong Bai , Yifan Li , Tingting Liu , Zhu Han , Xiaohu You

This paper investigates joint direction-of-arrival (DOA) and attitude sensing using tri-polarized continuous aperture arrays (CAPAs). By employing electromagnetic (EM) information theory, the spatially continuous received signals in…

信号处理 · 电气工程与系统科学 2025-10-03 Haonan Si , Zhaolin Wang , Xiansheng Guo , Jin Zhang , Yuanwei Liu

We consider the problem of direction of arrival (DOA) estimation using a newly proposed structure of non-uniform linear arrays, referred to as co-prime arrays, in this paper. By exploiting the second order statistical information of the…

信息论 · 计算机科学 2015-06-18 Zhao Tan , Yonina C. Eldar , Arye Nehorai

Spatial frequency estimation from a mixture of noisy sinusoids finds applications in various fields. While subspace-based methods offer cost-effective super-resolution parameter estimation, they demand precise array calibration, posing…

信号处理 · 电气工程与系统科学 2024-10-23 Tianyi Liu , Sai Pavan Deram , Khaled Ardah , Martin Haardt , Marc E. Pfetsch , Marius Pesavento

The feasibility conditions of interference alignment (IA) are analyzed for reverse TDD systems, i.e., one cell operates as downlink (DL) but the other cell operates as uplink (UL). Under general multiple-input and multiple-output (MIMO)…

信息论 · 计算机科学 2016-07-07 Kiyeon Kim , Sang-Woon Jeon , Janghoon Yang , Dong Ku Kim

In this paper, we introduce a direction of arrival (DoA) estimation method based on a technique named phase spectrometry (PS) that is mainly suitable for mm-Wave and Tera-hertz applications as an alternative for DoA estimation using antenna…

信号处理 · 电气工程与系统科学 2021-08-04 Farzam Hejazi , Nazanin Rahnavard

Direction-of-arrival estimation of multiple speakers in a room is an important task for a wide range of applications. In particular, challenging environments with moving speakers, reverberation and noise, lead to significant performance…

音频与语音处理 · 电气工程与系统科学 2024-09-24 Daniel A. Mitchell , Boaz Rafaely , Anurag Kumar , Vladimir Tourbabin

When data contains measurement errors, it is necessary to make assumptions relating the observed, erroneous data to the unobserved true phenomena of interest. These assumptions should be justifiable on substantive grounds, but are often…

机器学习 · 统计学 2020-12-24 Noam Finkelstein , Roy Adams , Suchi Saria , Ilya Shpitser

In this paper, we propose a novel data augmentation method for training neural networks for Direction of Arrival (DOA) estimation. This method focuses on expanding the representation of the DOA subspace of a dataset. Given some input data,…

音频与语音处理 · 电气工程与系统科学 2019-10-11 Luca Mazzon , Yuma Koizumi , Masahiro Yasuda , Noboru Harada

A robust and sparse Direction of Arrival (DOA) estimator is derived for array data that follows a Complex Elliptically Symmetric (CES) distribution with zero-mean and finite second-order moments. The derivation allows to choose the loss…

统计理论 · 数学 2023-07-31 Christoph F. Mecklenbräuker , Peter Gerstoft , Esa Ollila , Yongsung Park

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 passive radar, a network of distributed sensors exploit signals from so-called Illuminators-of-Opportunity to detect and localize targets. We consider the case where the IO signal is available at each receiver node through a reference…

信号处理 · 电气工程与系统科学 2026-05-19 Mats Viberg , Daniele Gerosa , Tomas McKelvey , Patrik Dammert , Thomas Eriksson

A variety of algorithms have been proposed to address the power system state estimation problem in the presence of uncertainties in the data. However, less emphasis has been given to handling perturbations in the model. In the context of…

系统与控制 · 电气工程与系统科学 2025-10-21 Ayan Das , Anushka Sharma , Anamitra Pal

The paper considers direction of arrival (DOA) estimation from long-term observations in a noisy environment. In such an environment the noise source might evolve, causing the stationary models to fail. Therefore a heteroscedastic Gaussian…

信号处理 · 电气工程与系统科学 2017-11-13 Peter Gerstoft , Santosh Nannuru , Christoph F. Mecklenbräuker , Geert Leus

The robustness of angle of arrival (AoA) as a physical layer authentication (PLA) feature under spoofing attacks is studied, assuming a digital uniform linear array verifier. The verifier estimates the AoA assuming a legitimate user's…

信号处理 · 电气工程与系统科学 2026-03-24 Sotiris Skaperas , Arsenia Chorti

Phase retrieval problems occur in a width range of applications in physics and engineering such as crystallography, astronomy, and laser optics. Common to all of them is the recovery of an unknown signal from the intensity of its Fourier…

数值分析 · 数学 2021-03-19 Robert Beinert

Recent studies suggest that uniform circular arrays (UCAs) can extend the angular coverage of the radiative near field region. This work investigates whether such enhanced angular coverage translates into improved spatial multiplexing…

信号处理 · 电气工程与系统科学 2026-04-28 Ahmed Hussain , Asmaa Abdallah , Abdulkadir Celik , Ahmed M. Eltawil

This paper studies the problem of state estimation for linear time-invariant descriptor systems in their most general form. The estimator is a system of ordinary differential equations (ODEs). We introduce the notion of partial causal…

最优化与控制 · 数学 2024-05-14 Juhi Jaiswal , Thomas Berger , Nutan K. Tomar

We consider the problem of direction-of-arrival (DOA) estimation in unknown partially correlated noise environments where the noise covariance matrix is sparse. A sparse noise covariance matrix is a common model for a sparse array of…