Results 91 to 100 of about 2,628 (189)

Space‐Time‐Coding Metasurfaces Enabling Programmable Range‐Angle‐Dependent Energy Auto‐Scanning

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
This paper presents a novel energy auto‐scanning system based on a space‐time‐coding metasurface. By applying progressive time‐delayed, time‐varying phase modulation, the system generates non‐uniform, temporally evolving electromagnetic field distributions across both angle and range.
Yuzhen Chen, Xiaoyi Wang, Guo‐Min Yang, Ya‐Qiu Jin   +3 more
wiley   +1 more source

Fully Polarimetric Radar Cross‐Section and High‐Resolution Range Profile Co‐Modulation via Diversely Time‐Modulated Metasurface

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
A diversely time‐modulated metasurface enables broadband co‐modulation of fully polarimetric radar cross section and high‐resolution range profiles. By integrating anti‐parallel PIN diodes and programmable temporal coding, the platform dynamically redistributes scattering among HH/VV and HV/VH channels, generating tunable target weakening, false ...
Hantao Xu, Jinxing Guo, Xinyang Mao, Shijian Yu, Yihao Xu, Peng You, Bin Zheng, Dongfang Guan, Zhen Liu, Yongxiang Liu   +9 more
wiley   +1 more source

Noninvasive Intelligent Brain‐Metasurface System for Real‐Time Electromagnetic Wave Manipulation

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
A noninvasive intelligent brain–computer interface (BCI) is integrated with a reconfigurable metasurface to establish a direct neural‐to electromagnetic transduction pathway for real time, multimodal wave control. By combining convolutional‐neural‐network‐based decoding of motor‐imagery electroencephalography (EEG) signals with threshold‐based ...
Xiao Hai, Ruiyang Shen, Xiaoyi Wang, Guo‐Min Yang   +3 more
wiley   +1 more source

A Detection and Cover Integrated Waveform Design Method with Good Correlation Characteristics and Doppler Tolerance

Remote Sensing
With the increasing complexity of the electromagnetic environment, radar waveform design needs to break through the limitation of traditional single-function architectures, prompting the emergence of integrated radar waveforms.
Haoting Guo, Fulai Wang, Nanjun Li, Zezhou Wu, Chen Pang, Lei Zhang, Yongzhen Li   +6 more
doaj   +1 more source

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

Energy Sharing and Performance Bounds in MIMO DFRC Systems: A Trade-Off Analysis

IET Signal Processing
It is a fundamental problem to analyze the performance bound of multiple-input multiple-output dual-functional radar-communication systems. To this end, we derive a performance bound on the communication function under a constraint on radar performance ...
Ziheng Zheng, Xiang Liu, Tianyao Huang, Yimin Liu, Yonina C. Eldar   +4 more
doaj   +1 more source

Nonlinear Waveform Sensing for Cognitive Radar Based on Reinforcement Learning

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Cognitive radar automatically adjusts its waveform via ceaseless interaction with the environment and learning from the experience. Compared with the linear frequency modulation (LFM) that has been commonly adopted in cognitive radars, the nonlinear FM ...
Peikun Zhu, Xu Si, Jiachen Han, Jing Liang   +3 more
doaj   +1 more source

A Radar Waveform Design Method Based on Multicarrier Phase Coding for Suppressing Autocorrelation Sidelobes. [PDF]

Sensors (Basel)
Li J, Ye L, Wang W.
europepmc   +1 more source

Constrained Pulse Radar Waveform Design Based on Optimization Theory. [PDF]

Sensors (Basel)
Wu J, Zhang J, Chen Y.
europepmc   +1 more source

Non-Contact Blood Pressure Prediction Using Radar with a Lightweight Temporal Multi-Scale Feature Fusion Network. [PDF]

Sensors (Basel)
Liu Y, Zhang T, Luo Y, Zhou L, Ding L, Li Y.   +5 more
europepmc   +1 more source