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Source localization is the process of estimating the location of signal sources based on the signals received at different antennas of an antenna array. It has diverse applications, ranging from radar systems and underwater acoustics to…

信号处理 · 电气工程与系统科学 2024-02-13 Parisa Ramezani , Özlem Tuğfe Demir , Emil Björnson

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

A simple scheme for joint direction of arrival (DOA) and array manifold estimation for a MIMO array system is proposed, where only two transmit antennas are calibrated initially. It first obtains a set of initial DOA results by employing a…

信息论 · 计算机科学 2013-10-14 Wei Zhang , Wei Liu , Siliang Wu , Ju Wang

Direction-of-arrival (DOA) estimation is an important task in microphone array processing and many downstream applications. The steered response power with phase transform (SRP-PHAT) method has been widely adopted for DOA estimation in…

音频与语音处理 · 电气工程与系统科学 2026-04-29 Ming Huang , Shuting Xu , Leying Yang , Huanzhang Hu , Yujie Zhang , Jiang Wang , Yu Liu , Hao Zhao , He Kong

In this paper, we address the problem of direction of arrival (DOA) estimation for multiple targets in the presence of sensor failures in a sparse array. Generally, sparse arrays are known with very high-resolution capabilities, where N…

机器学习 · 计算机科学 2023-06-22 Aya Mostafa Ahmed , Udaya S. K. P. Miriya Thanthrige , Aydin Sezgin , Fulvio Gini

This work deals with directional of arrival (DOA) estimation with a large antenna array. We first develop a novel signal model with a sparse system transfer matrix using an inverse discrete Fourier transform (DFT) operation, which leads to…

信号处理 · 电气工程与系统科学 2023-09-04 Yiwen Mao , Dawei Gao , Qinghua Guo , Ming Jin

New generation of radio interferometers are envisaged to produce high quality, high dynamic range Stokes images of the observed sky from the corresponding under-sampled Fourier domain measurements. In practice, these measurements are…

天体物理仪器与方法 · 物理学 2020-01-08 Jasleen Birdi , Audrey Repetti , Yves Wiaux

The design of sparse spatially stretched tripole arrays is an important but also challenging task and this paper proposes for the very first time efficient solutions to this problem. Unlike for the design of traditional sparse antenna…

信息论 · 计算机科学 2017-02-02 Matthew Hawes , Lyudmila Mihaylova , Wei Liu

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

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 letter, we consider the problem of direction-of-arrival (DOA) estimation with one-bit quantized array measurements. With analysis, it is shown that, under mild conditions the one-bit covariance matrix can be approximated by the sum…

信号处理 · 电气工程与系统科学 2019-04-30 Xiaodong Huang , Bin Liao

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

Our previous work has demonstrated that Rayleigh model, which is widely used in polarized skylight navigation to describe skylight polarization patterns, does not contain three-dimensional (3D) attitude information [1]. However, it is still…

图像与视频处理 · 电气工程与系统科学 2020-12-17 Huaju Liang , Hongyang Bai , Tong Zhou

We demonstrate that the problem of amplitude estimation, a core subroutine used in many quantum algorithms, can be mapped directly to a problem in signal processing called direction of arrival (DOA) estimation. The DOA task is to determine…

量子物理 · 物理学 2025-05-12 Farrokh Labib , B. David Clader , Nikitas Stamatopoulos , William J. Zeng

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

In this paper, we study the problem of estimating the direction of arrival (DOA) using a sparsely sampled uniform linear array (ULA). Based on an initial incomplete ULA measurement, our strategy is to choose a sparse subset of array…

信号处理 · 电气工程与系统科学 2022-02-22 Mohammad Bokaei , Saeed Razavikia , Arash Amini , Stefano Rini

Sensor selection is a useful method to help reduce data throughput, as well as computational, power, and hardware requirements, while still maintaining acceptable performance. Although minimizing the Cram\'er-Rao bound has been adopted…

信号处理 · 电气工程与系统科学 2023-08-01 Costas A. Kokke , Mario Coutiño , Laura Anitori , Richard Heusdens , Geert Leus

Linear polarization measurements provide access to two quantities, the degree (DOP) and the angle of polarization (AOP). The aim of this work is to give a complete and concise overview of how to analyze polarimetric measurements. We review…

天体物理仪器与方法 · 物理学 2016-03-09 Daniel Maier , Chris Tenzer , Andrea Santangelo

In this paper, we explore the problems of detecting the number of narrow-band, far-field targets and estimating their corresponding directions of arrivals (DoAs) from single snapshot measurements. We use the principles of sparse signal…

应用统计 · 统计学 2017-09-12 Rakshith Jagannath

In this paper, we present a joint Doppler frequency shift compensation and data detection method using 2-D unitary ESPRIT algorithm for SIMO-OFDM railway communication systems over fast time-varying sparse multipath channels. By creating…

信息论 · 计算机科学 2012-10-30 Huiyue Yi