Results 21 to 30 of about 70,610 (256)

Multi-Target Robust Waveform Design Based on Harmonic Variance and Mutual Information

Advances in Mathematical Physics, 2020
Cognitive radar is an intelligent radar system, and adaptive waveform design is one of the core problems in cognitive radar research. In the previous studies, it is assumed that the prior information of the target is known, and the definition of target ...
Bin Wang, Shuangqi Yu
doaj   +1 more source

A Survey of Collocated MIMO Radar

Leida xuebao, 2022
As a novel radar system, the Multiple-Input Multiple-Output (MIMO) radar with waveform diversity has demonstrated excellent performance in several aspects, including target detection, parameter estimation, radio frequency stealth, and anti-jamming ...
Zishu HE, Ziyang CHENG, Jun LI, Wei ZHANG, Jingxi SHI, Yang SU, Minglong DENG   +6 more
doaj   +1 more source

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

IEEE 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, Xavier Leturc, Christophe J. Le Martret, Mohamad Assaad   +3 more
doaj   +1 more source

Integrated Radar and Communication Waveform Design for Distributed MIMO Systems

Remote 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, Yongjun Liu, Guisheng Liao, Xuchen Liu, Heming Wang, Xiaoyang Dong   +5 more
doaj   +1 more source

A New Shaped Waveform Design Scheme for Radar Embedded Communication

MATEC 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

Power 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

Tongxin 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, Zhiyong FENG, Yiheng LI, Hao MA, Jinzhu JIA   +4 more
doaj   +2 more sources

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

IEEE 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, Baiyang Cai, Meng Xia, Lichao Yang   +3 more
doaj   +1 more source

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

Advanced 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, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Extended Target Recognition in Cognitive Radar Networks

Sensors, 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, Yimin Liu, Huadong Meng, Yimin Wei   +3 more
doaj   +1 more source