Results 81 to 90 of about 82,705 (221)
A unified convolutional beamformer for simultaneous denoising and dereverberation
, 2019 This paper proposes a method for estimating a convolutional beamformer that can perform denoising and dereverberation simultaneously in an optimal way.
Kinoshita, Keisuke, Nakatani, Tomohiro
core +1 more source
Diagnostic Performance of Ultrasound in Adult Appendicitis. A Retrospective Review of 331 Cases
Journal of Medical Radiation Sciences, EarlyView.The sensitivity of ultrasound in the detection of appendicitis had a prevalence of 16% in our predominantly young female cohort, with alternative gynaecological and abdominal diagnoses identified approximately 2:1. The sensitivity for ultrasound to detect appendicitis was 60%, with specificity of 98% and negative predictive value (NPV) of 93%.
Alistair Lock, Martin Necas
wiley +1 more source
A 5G NR FR2 Beamforming System with Integrated Transceiver Module
SensorsThis paper presents a 5G new radio (NR) FR2 beamforming system with an integrated transceiver module. A real-time operating module providing enhanced flexibility and capability has been proposed.
Ayush Bhatta +3 more
doaj +1 more source
Optimal Signaling of MISO Full-Duplex Two-Way Wireless Channel
, 2015 We model the self-interference in a multiple input single output (MISO) full-duplex two-way channel and evaluate the achievable rate region. We formulate the boundary of the achievable rate region termed as the Pareto boundary by a family of coupled, non-
Aazhang, Behnaam, Jia, Shuqiao
core +1 more source
Non‐Uniform Programmable Photonic Waveguide Meshes
Laser &Photonics Reviews, EarlyView.Integrating defect cells into uniform hexagonal waveguide meshes overcomes the fundamental spectral and temporal limitations of programmable photonics. By leveraging the Vernier effect through non‐uniform coupled cavities, this architecture achieves a tenfold increase in free spectral range and ultra‐fast sampling times, paving the way for next ...
Cristina Catalá‐Lahoz, José Capmany
wiley +1 more source
Journal of Electrical and Computer EngineeringThis research paper proposes three joint transmit and receive (TX/RX) beamforming schemes for minimizing the bit error rates of next-generation wireless sensor networks. Based on minimizing the optimization problem of the total mean squared error between
Mohamed S. Abouzeid +3 more
doaj +1 more source
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley +1 more source
Low Complexity and Robust Codebook-Based Analog Beamforming for Millimeter Wave MIMO Systems
IEEE Access, 2017 Millimeter-wave (mm-Wave) MIMO systems have been proposed to achieve higher spectral efficiency via the hybrid beamforming structure, which consists of analog beamforming and digital beamforming.
Yong Niu +5 more
doaj +1 more source
Comparison of robust Capon beamforming based on weighted sparse constraints
上海师范大学学报. 自然科学版, 2020 The performance of several Capon adaptive beamforming algorithms which used the weighted sparse constraints were analyzed and compared.These algorithms using the sparse distribution characteristics of the antenna array gain would suppress side lobes ...
LIN Zhen, LI Li, WEI Shuang, LIANG Yan
doaj +1 more source
Secure Satellite Communication Systems Design with Individual Secrecy Rate Constraints
, 2011 In this paper, we study multibeam satellite secure communication through physical (PHY) layer security techniques, i.e., joint power control and beamforming.
Han, Zhu +3 more
core +1 more source