Amplification and Manipulation of Nonlinear Electromagnetic Waves and Enhanced Nonreciprocity using Transmissive Space‐Time‐Coding Metasurface
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202105960
Abstract: A novel amplifier‐based transmissive space‐time‐coding metasurface is presented to realize strongly nonlinear controls of electromagnetic (EM) waves in both space and frequency domains, which can manipulate the propagation directions and adjust enhancements of nonlinear harmonic… read more here.
Keywords: space; power; time coding; space time ... See more keywords
Intelligent autoencoder for space-time-coding digital metasurfaces
Sign Up to like & getrecommendations! Published in 2023 at "Applied Physics Letters"
DOI: 10.1063/5.0132635
Abstract: Space-time-coding (STC) digital metasurfaces provide a powerful platform for simultaneous spatiotemporal modulations of electromagnetic waves. Therefore, the fast and accurate generation of STC matrices based on desired harmonic scattering patterns can help STC metasurfaces enhance… read more here.
Keywords: autoencoder; physics; digital metasurfaces; intelligent autoencoder ... See more keywords
Real Time Coding and Estimation of Linear Discrete Time System Over Networks
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3033620
Abstract: This study deals with the real time coding and estimation of linear discrete time scalar system over communication networks. With the mean-squared error (MSE) distortion criterion, the information rate distortion function describing the performance limit… read more here.
Keywords: system; time; time coding; real time ... See more keywords
Differential Space-Time Coding Dispensing With Channel Estimation Approaches the Performance of Its Coherent Counterpart in the Open-Loop Massive MIMO-OFDM Downlink
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2018.2867528
Abstract: In this paper, we propose a simple yet powerful mapping scheme that converts any conventional square-matrix-based differential space-time coding (DSTC) into a nonsquare-matrix-based DSTC. This allows DSTC schemes to be used practically in open-loop large-scale… read more here.
Keywords: differential space; space; space time; time coding ... See more keywords
Efficient Implementation of Multiple Time Coding Lines-Based TDC in an FPGA Device
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2020.2984929
Abstract: This article presents two principles that make multiple time coding lines (TCLs)-based time-to-digital converter (TDC) implementation in field-programmable gate array (FPGA) device more efficient. A pseudo-segmented delay line allows for saving many logical resources by… read more here.
Keywords: implementation; time; time coding; multiple time ... See more keywords
Time-coding spread-spectrum reconfigurable intelligent surface for secure wireless communication: theory and experiment.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.437938
Abstract: We present a time-coding reconfigurable intelligent surface (RIS) enabled spread-spectrum secure wireless communication system. The time-coding spread-spectrum RIS is realized by altering the RIS between the two states of a perfect electrical conductor (PEC) and… read more here.
Keywords: secure wireless; time; time coding; wireless communication ... See more keywords