Results 231 to 240 of about 35,734 (259)

Waveform-selective Huygens Metasurfaces for Antenna Applications

2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)
Huygens metasurfaces (HMS) are usually made of unit-cells composed of a cascaded configuration of impedance sheets returning a specific phase insertion for a fixed frequency. Here, we discuss the design of self-reconfigurable HMS exhibiting two different phase-gradients depending not only on the frequency of the impinging field but also on its temporal
Vellucci, S., Monti, A., Barbuto, M., Fathnan, A. A., Karamirad, M., Longhi, M., Ramaccia, D., Stefanini, L., Wakatsuchi, H., Toscano, A., Bilotti, F.   +10 more
openaire   +2 more sources

Research on Adaptive Waveform Selection Algorithm in Cognitive Radar

Journal of Communications, 2010
Cognitive radar is a new framework of radar system proposed by Simon Haykin recently. Adaptive waveform selection is an important problem of intelligent transmitter in cognit i ve radar. In this paper, the problem of adaptive waveform selection is modeled as stochastic dynamic programming model.
Bin Wang 0011, Jinkuan Wang, Xin Song 0002, Yinghua Han   +3 more
openaire   +1 more source

Selection of carrier waveforms for PWM inverter

Journal of Shanghai University (English Edition), 2003
In this paper the influence of different carrier waveforms upon the output characteristics of PWM inverter is described in detail. When a triangular carrier waveform is used in hard-switching PWM inverters, harmonics exist in the neighborhood of the output frequency of the inverter output voltage and current due to the dead time. The triangular carrier
Guo-Cheng Chen, Ke-Qing Qu, Chun-Yu Xu, Cheng-Bo Sun   +3 more
openaire   +1 more source

Radar Waveform Selection-A Simplified Approach

IEEE Transactions on Aerospace and Electronic Systems, 1971
Radar measurement and resolution performance, as well as target detection in clutter, depend largely on the transmitted waveform. This explains the sizable effort that has gone into studies of radar waveforms, including attempts at the synthesis of optimum waveforms.
openaire   +1 more source

Design of Waveform-Selective Mantle Cloaks for Antenna Applications

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, 2019
Here, we discuss the design of a cloaking metasurface (MTS) capable to engineer the scattering of an antenna depending on the waveform of the impinging signal. The MTS consists of vertical metallic strips loaded with lumped-element circuits exhibiting a peculiar time-domain response.
Vellucci S., Toscano A., Bilotti F., Monti A., Barbuto M.   +4 more
openaire   +1 more source

Design of a Frequency Selective Rasorber With a Waveform Selective Passband

IEEE Antennas and Wireless Propagation Letters, 2022
Yi Wang, Xiaofan Min, Minxin Zhao, Hang Yuan, Ronghao Li, Xuerong Hu, Qunsheng Cao   +6 more
openaire   +1 more source

Joint Transmit Resource Management and Waveform Selection Strategy for Target Tracking in Distributed Phased Array Radar Network

IEEE Transactions on Aerospace and Electronic Systems, 2022
Chenguang Shi, Yijie Wang, Sana Salous   +2 more
exaly  

On the Value of Online Learning for Cognitive Radar Waveform Selection.

2023
Doctor of ...
openaire   +1 more source

Universal Learning Waveform Selection Strategies for Adaptive Target Tracking

IEEE Transactions on Aerospace and Electronic Systems, 2022
Charles E Thornton, R Michael Buehrer, Harpreet S Dhillon   +2 more
exaly  

Phase-Modulated Waveform Evaluation and Selection Strategy in Compound-Gaussian Clutter

IEEE Transactions on Signal Processing, 2013
Tianxian Zhang, Guolong Cui, Lingjiang Kong   +2 more
exaly