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相关论文: Semiparametric Stochastic CRB for DOA Estimation i…

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The proposed Circular statistics-based Inter-Microphone Phase difference estimation Localizer (CIMPL) method is tailored toward binaural hearing aid systems with microphone arrays in each unit. The method utilizes the circular statistics…

In this paper, we consider the Cramer-Rao lower bound (CRLB) for estimation of a lens-embedded antenna array with deterministic parameters. Unlike CRLB of uniform linear array (ULA), it is noted that CRLB for direction of arrival (DoA) of…

信息论 · 计算机科学 2016-12-14 Jae-Nam Shim , Hongseok Park , GeeYong Suk , Chan-Byoung Chae , Dong Ku Kim

Direction-of-Arrival (DoA) estimation assisted with an Intelligent Reflecting Surface (IRS) is crucial for various wireless applications, especially in challenging Non-Line-of-Sight (NLoS) environments. This paper presents a novel neural…

信号处理 · 电气工程与系统科学 2025-05-23 Yasin Azhdari , Mahmoud Farhang

We present a MUSIC-based Direction of Arrival (DOA) estimation strategy using small antenna arrays, via employing deep learning for reconstructing the signals of a virtual large antenna array. Not only does the proposed strategy deliver…

信号处理 · 电气工程与系统科学 2021-03-08 Aya Mostafa Ahmed , Udaya Sampath K. P. Miriya Thanthrige , Aly El Gamal , Aydin Sezgin

We investigate robust direction-of-arrival (DoA) estimation for sensor arrays operating in adverse weather conditions, where weather-induced distortions degrade estimation accuracy. Building on a physics-based $S$-matrix model established…

信号处理 · 电气工程与系统科学 2026-01-28 Chenyang Yan , Geert Leus , Mats Bengtsson

We focus on developing an effective Direction Of Arrival (DOA) estimation method for wideband sources based on the gridless sparse concept. Previous coherent methods have been designed by dividing wideband frequencies into a few subbands…

信号处理 · 电气工程与系统科学 2021-03-05 Milad Javadzadeh Jirhandeh , Mohammad Hossein Kahae

This paper investigates the asymptotic behavior of the deterministic and stochastic Cram\'er-Rao Bounds (CRB) for semi-blind channel estimation in massive multiple-input multiple-output (MIMO) systems. We derive and analyze mathematically…

信号处理 · 电气工程与系统科学 2025-07-15 Xue Zhang , Abla Kammoun , Mohamed-Slim Alouini

In this paper, we derive Hybrid, Bayesian and Marginalized Cram\'{e}r-Rao lower bounds (HCRB, BCRB and MCRB) for the single and multiple measurement vector Sparse Bayesian Learning (SBL) problem of estimating compressible vectors and their…

机器学习 · 计算机科学 2015-06-04 Ranjitha Prasad , Chandra R. Murthy

Distorted sensors could occur randomly and may lead to the breakdown of a sensor array system. We consider an array model within which a small number of sensors are distorted by unknown sensor gain and phase errors. With such an array…

信号处理 · 电气工程与系统科学 2024-10-28 Huiping Huang , Qi Liu , Hing Cheung So , Abdelhak M. Zoubir

Multiple wireless sensing tasks, e.g., radar detection for driver safety, involve estimating the "channel" or relationship between signal transmitted and received. In this work, we focus on a certain channel model known as the delay-doppler…

信息论 · 计算机科学 2020-11-24 Alisha Zachariah

Elliptically symmetric distributions are a classic example of a semiparametric model where the location vector and the scatter matrix (or a parameterization of them) are the two finite-dimensional parameters of interest, while the density…

统计理论 · 数学 2026-03-18 Stefano Fortunati , Jean-Pierre Delmas , Esa Ollila

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

This paper aims to analyze the stochastic performance of a multiple input multiple output (MIMO) integrated sensing and communication (ISAC) system in a downlink scenario, where a base station (BS) transmits a dual-functional…

信息论 · 计算机科学 2024-10-22 Marziyeh Soltani , Mahtab Mirmohseni , Rahim Tafazolli

The SPS-LASSO has recently been introduced as a solution to the problem of regularization parameter selection in the complex-valued LASSO problem. Still, the dependence on the grid size and the polynomial time of performing convex…

信息论 · 计算机科学 2012-07-31 Ashkan Panahi , Mats Viberg

Recently, several array radar structures combined with sub-Nyquist techniques and corresponding algorithms have been extensively studied. Carrier frequency and direction-of-arrival (DOA) estimations of multiple narrow-band signals received…

信号处理 · 电气工程与系统科学 2018-10-29 Zhan Zhang , Ping Wei , Lijuan Deng , Huaguo Zhang

In recent years, direction of arrival estimation utilizing non-circular signals has become a focal point for scholarly research. To enhance the degrees of freedom (DOF) in receiver arrays specifically for non-circular signal DOA estimation,…

网络与互联网体系结构 · 计算机科学 2026-05-06 Dongqi Chen , Kun Ye , Chuanxi Xing , Waqas Khalid , Huiping Huang

Electromagnetic (EM) vector sensor arrays can track both the polarisation and direction of arrival (DOA) of the impinging signals. For linear crossed-dipole arrays, as shown by our analysis, due to inherent limitation of the structure, it…

信号处理 · 电气工程与系统科学 2020-04-21 Xiang Lan , Wei Liu , Henry Y. T. Ngan

In this work, we consider the Direction-of-Arrival (DOA) estimation problem in a low-cost architecture where only one antenna as the receiver is aided by a reconfigurable intelligent surface (RIS). We introduce the one-bit RIS as a signal…

信号处理 · 电气工程与系统科学 2022-12-14 Zihan Yang , Peng Chen , Ziyu Guo , Dahai Ni

The estimation of the time- and frequency-dependent coherent-to-diffuse power ratio (CDR) from the measured spatial coherence between two omnidirectional microphones is investigated. Known CDR estimators are formulated in a common…

声音 · 计算机科学 2015-04-01 Andreas Schwarz , Walter Kellermann

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