Results 131 to 140 of about 5,020,295 (161)

Amplitude-Phase Decoupling for RIS-Enabled Backscatter Systems

Global Communications Conference
This paper proposes an amplitude-phase decoupling scheme for reconfigurable intelligent surface (RIS)-enabled backscatter systems, which aims to achieve the standard quadrature amplitude modulation (QAM) constellation on the harmonics by considering the ...
Zhen Wen, Hai-Yang Ding, Wan-Kai Tang, M. Elkashlan, Chau Yuen, J. M. Moualeu, Zhongwei Liu, Chenglin Feng, Wei Fan   +8 more
semanticscholar   +1 more source

Ultra-Wideband Transmissive Metasurface With Independent Amplitude–Phase-Polarization Control for Co-Polarized Waves Empowered by Duplexing Meta-Particle

IEEE transactions on microwave theory and techniques
Artificially elaborated metasurfaces with unparalleled manipulation of electromagnetic (EM) waves have sparked revolutionary upsurge in the microwave, terahertz, and even optics fields. Whether as the basic dimensions of EM waves, or modulated degrees of
Zuntian Chu, Xin-Qi Cai, Tiefu Li, Ruichao Zhu, Hui-Ting Sun, Yuxiang Jia, Ya-Juan Han, Jiafu Wang   +7 more
semanticscholar   +1 more source

Optical spatial modulation with DHT-based OFDM in visible light communication systems

International Conference on Wireless Communications and Signal Processing, 2017
Yali Cao, Xiaotian Zhou, Jian Sun, Wensheng Zhang, Cheng-Xiang Wang   +4 more
semanticscholar   +1 more source

Relations of Carrier and Side-Bands in Radio Transmission

Proceedings of the Institute of Radio Engineers, 1923
R. V. L. Hartley
semanticscholar   +1 more source

Performance Analysis of DHT-Based Optical OFDM Using Large-Size Constellations in AWGN

IEEE Communications Letters, 2011
M. S. Moreolo
semanticscholar   +1 more source

Amplitude‐Phase Independently Encoding Space‐Division Multiplexed Wireless Communication Using Beamforming Reconfigurable Metasurfaces

Advanced Optical Materials
Wireless communications utilizing reconfigurable metasurfaces have garnered significant attention due to their capability to transmit information without traditional radio‐frequency chains.
Qi Xiong, Zuojun Zhang, Cheng Huang, Ming-Bo Pu, Jun Luo, Ying-Hui Guo, Jia Ye, W. Pan, Xiaoliang Ma, Lian-Shan Yan, Xian-Gang Luo   +10 more
semanticscholar   +1 more source

Ultrasonic detection of photothermal interaction of lasers with tissue using a pulsed Doppler system

Photonics West, 1995
Hao Ying, A. Azeemi, C. Hartley, M. Motamedi, B. Bell, S. Rastegar, L. C. Sheppard   +6 more
semanticscholar   +1 more source

Methods for Increasing the Efficiency of Amplitude-Phase Modulated Signals Power Amplifiers

2024 Systems of Signals Generating and Processing in the Field of on Board Communications
Despite the widespread development of satellite mobile communications, radio communications in the high frequency range (3 - 30 MHz) retains its position when it is necessary to ensure over-the-horizon data transmission with low delays.
Quoc Fung Ngo, O. Varlamov
semanticscholar   +1 more source

Analog Signal Generation and Processing

, 1990
M. Goodge
semanticscholar   +1 more source

Single Sideband Hartley Amplitude Modulation

Radioelectronics and Communications Systems, 2021
Kokhanov Aleksandr
exaly