Results 81 to 90 of about 13,266 (201)

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

Adaptive channel selection for DOA estimation in MIMO radar

, 2017
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 one-step ahead
Brüggenwirth, Stefan, González-Huici, María A., Mateos-Núñez, David, Simoni, Renato   +3 more
core   +1 more source

Gut Microbiome Dysbiosis is Associated With Human T‐Lymphotropic Virus Type 1 (HTLV‐1) Infection and Disease Progression to HTLV‐1‐Associated Myelopathy/Tropical Spastic Paraparesis: A Cross‐Sectional Study

Smart Medicine, Volume 5, Issue 1, February 2026.
We provide the first comprehensive analysis of changes in the gut bacteriome at different clinical stages of HTLV‐1 infection. HTLV‐1 infection is associated with a dysbiosis that includes reduced bacterial diversity and an inverted Firmicutes/Bacteroidetes ratio.
Lorena Abreu Fernandes, Ana Olivia de Souza, Youko Nukui, Rosa Maria Marcusso, Augusto César Penalva de Oliveira, Jorge Casseb, Patricia Bianca Clissa, Silas G. Villas‐Boas, Sabri Saeed Sanabani   +8 more
wiley   +1 more source

Direction-of-Arrival Estimation of Virtual Array Signals Based on Doppler Effect

International Journal of Distributed Sensor Networks, 2015
The estimation accuracy of direction-of-departure (DOD) and direction-of-arrival (DOA) is reduced because of Doppler shifts caused by the high-speed moving sources.
Feng Zhao, Xia Hao, Hongbin Chen
doaj   +1 more source

Off-grid Direction of Arrival Estimation Using Sparse Bayesian Inference

, 2012
Direction of arrival (DOA) estimation is a classical problem in signal processing with many practical applications. Its research has recently been advanced owing to the development of methods based on sparse signal reconstruction.
Xie, Lihua, Yang, Zai, Zhang, Cishen
core   +1 more source

A Comprehensive Review of Direction of Arrival (DoA) Estimation Techniques and Algorithms

Journal of Electronics and Electrical Engineering
Direction of Arrival (DOA) estimation is a pivotal aspect of Array Signal Processing (ASP) with significant implications for the performance of modern communication systems. This paper provides a comprehensive review of DOA estimation techniques, encompassing both classical and advanced algorithms.
Saanvi Kulkarni, Avani Thakur, Samraddhi Soni, Anil Hiwale, Madhavi H. Belsare, A. A. Bazil Raj   +5 more
openaire   +1 more source

Research on 2-D Direction of Arrival (DOA) Estimation for an L-Shaped Array

Remote Sensing
Lately, there has been a significant increase in interest in coprime array configurations, as they offer the advantage of generating more extensive array apertures and enhanced degrees of freedom when contrasted with standard linear arrays. This document introduces an innovative two-dimensional direction-of-arrival (2-D DOA) estimation technique ...
Kun Ye, Lang Zhou, Shaohua Hong, Xuebo Zhang, Haixin Sun   +4 more
openaire   +2 more sources

AVCLNet: Multimodal Multispeaker Tracking Network Using Audio‐Visual Contrastive Learning

CAAI Transactions on Intelligence Technology, Volume 11, Issue 1, Page 238-255, February 2026.
ABSTRACT Audio‐visual speaker tracking aims to determine the locations of multiple speakers in the scene by leveraging signals captured from multisensor platforms. Multimodal fusion methods can improve both the accuracy and robustness of speaker tracking.
Yihan Li, Yidi Li, Zhenhuan Xu, Hao Guo, Mengyuan Liu, Weiwei Wan   +5 more
wiley   +1 more source

Polynomial Manifold Interpolation for Direction Finding in the Presence of Mutual Coupling

IEEE Access, 2019
Direction-of-arrival (DOA) estimation in the presence of mutual coupling among the antennas is an important problem in direction finding systems. To address the mutual coupling issue, a polynomial manifold interpolation approach is proposed in this paper.
Hongtao Duan, Yinsheng Liu, Si Li, Li You, Wenjin Wang   +4 more
doaj   +1 more source

Multiple and single snapshot compressive beamforming

, 2015
For a sound field observed on a sensor array, compressive sensing (CS) reconstructs the direction-of-arrival (DOA) of multiple sources using a sparsity constraint.
Gerstoft, Peter, Mecklenbräuker, Christoph F., Xenaki, Angeliki   +2 more
core   +2 more sources