Results 21 to 30 of about 1,684 (212)

Enhanced Hybrid TIM-TDMA to Maximize the Total Throughput With Fairness Constraints

open access: yesIEEE Open Journal of the Communications Society
This paper addresses the problem of topological interference management (TIM) in ad hoc networks operating under a frequency-flat Rayleigh fading channel in single-input single-output (SISO). Assuming that the nodes have access to the statistical channel
David Jia   +3 more
doaj   +1 more source

Integrated Radar and Communication Waveform Design for Distributed MIMO Systems

open access: yesRemote Sensing
In the distributed multiple input multiple output (MIMO) system with the integrated radar and communication (IRAC) waveform transmitted, the synthesized transmit beampattern usually suffers from high sidelobes.
Hao Tang   +5 more
doaj   +1 more source

A New Shaped Waveform Design Scheme for Radar Embedded Communication

open access: yesMATEC Web of Conferences, 2018
In order to improve the covertness of radar embedded communication based on the eigenvalue decomposition radar embedded communication waveform design scheme, a new waveform design scheme that combines the idea of shaped design is constructed.
He Shan, Li Baoguo, Lei Jing, Yan Hua
doaj   +1 more source

Switching waveform design with gate charge control for power MOSFETs

open access: yesPower Electronic Devices and Components, 2022
The switching waveform design, especially controlling and optimizing the slew rate, is an efficient technique to mitigate the trade-off between decreasing the loss and increasing the noise of the switching power device.
Hirotaka Oomori, Ichiro Omura
doaj   +1 more source

Terahertz joint communication and sensing waveform:status and prospect

open access: yesTongxin xuebao, 2022
To meet the requirements of machine communication and immersive service in the 6G era for high precision perception and high speed communication, communication perception integration technology emerges at the right moment.Based on this, the scenarios ...
Zhiqing WEI   +4 more
doaj   +2 more sources

Research on Optimization Design Method of MIMO Radar Waveform Based on Frequency-Orthogonal LFM

open access: yesIEEE Access
In the field of Multiple Input Multiple Output(MIMO) radar waveform design, how to design an orthogonal waveform with high performance is one of the current hot topics. The Orthogonal Frequency Division Multiplexing - Linear Frequency Modulation(OFDM-LFM)
Xinrong Mao   +3 more
doaj   +1 more source

Dual-Pulse Repeated Frequency Waveform Design of Time-Division Integrated Sensing and Communication Based on a 5G New Radio Communication System

open access: yesSensors, 2023
With the development of 5G communication systems, it is a hot topic to embed integrated sensing and communication (ISAC) based on the existing 5G base station by sharing the hardware and the same frequency spectrum. In this paper, we propose a dual pulse
Ping Chu, Zhaocheng Yang, Jian Zheng
doaj   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

Extended Target Recognition in Cognitive Radar Networks

open access: yesSensors, 2010
We address the problem of adaptive waveform design for extended target recognition in cognitive radar networks. A closed-loop active target recognition radar system is extended to the case of a centralized cognitive radar network, in which a generalized ...
Xiqin Wang   +3 more
doaj   +1 more source

Phase retrieval for radar waveform design

open access: yesInformation and Inference: A Journal of the IMA
Abstract The ability of a radar to discriminate in both range and Doppler velocity is completely characterized by the ambiguity function (AF) of its transmit waveform. Mathematically, it is obtained by correlating the waveform with its Doppler-shifted and delayed replicas.
Samuel Pinilla   +3 more
openaire   +3 more sources

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