Search Results - "Xu, Weikai"

Code-Shifted Differential Chaos Shift Keying With Code Index Modulation for High Data Rate Transmission by Xu, Weikai, Huang, Tingting, Wang, Lin

“…In the general code-shifted differential chaos shift keying (GCS-DCSK) system, multiple bit-streams are simultaneously carried by CS-DCSK signal using Walsh…”
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Tunable metagrating for flexural wave based on knob elastic metasurfaces by Hai, Hong, Chen, Chenfeng, Zhang, Benhua, Yang, Zhe, Xu, Weikai

“…In the study, a tunable metagrating of flexural waves by using knob elastic metasurface is presented. By precisely designing the angles of the rotary knobs,…”
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Thermal tuning of band gap properties in planar stretch-dominated lattices with tailorable coefficient of thermal expansion by Lv, Shuchen, Xu, Weikai, Bai, Liang, Qi, Wuchao, Wang, Wei

“…The development of the current technology has increased the requirement for the versatility of acoustic metamaterials. In this study, the band gap (BG) tuning…”
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Metasurfaces design for tuning of flexural wave and SH wave by Yang, Zhe, Liu, Hongliang, Zhang, Benhua, Wang, Wei, Xu, Weikai

“…In this paper, a square mass oscillator elastic metasurface (SMEM) is used to manipulate flexural wave and SH wave. Due to the symmetry of its oscillator in z…”
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Design and Optimization of Differential Chaos Shift Keying Scheme With Code Index Modulation by Weikai Xu, Yunsheng Tan, Lau, Francis C. M., Kolumban, Geza

“…Energy usage and data rate of differential chaos shift keying (DCSK) are both inefficient since half of the symbol duration is used to transmit reference. To…”
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Transient thermal camouflage and heat signature control by Yang, Tian-Zhi, Su, Yishu, Xu, Weikai, Yang, Xiao-Dong

“…Thermal metamaterials have been proposed to manipulate heat flux as a new way to cloak or camouflage objects in the infrared world. To date, however, thermal…”
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Multilevel cyclic shift index differential chaos shift keying system for high data rate transmission by Lin, Zixian, Xu, Weikai, Wang, Lin

“…This paper proposes a multilevel cyclic shift index modulation aided differential chaotic shift keying (MCSI‐DCSK) system to improve data rate and energy…”
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Research on multi-objective topology optimization of unmanned sightseeing vehicle frame based on Analytic Hierarchy Process by Tang, Pei, Xu, Weikai, Ding, Zhenyu, Jiang, Minnan, Lv, Mao

“…To optimize the frame of a sightseeing vehicle, this paper proposes a multi-objective topology optimization method combining Analytic Hierarchy Process (AHP)…”
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Gradient folding metasurfaces with simultaneous phase and amplitude modulation by Lin, Zibin, Xu, Weikai, Wang, Wei, Yuan, Shasha

“…An elastic metasurface with a gradient index of functional units, namely gradient folding metasurface (GFMS), is proposed to simultaneously manipulate the…”
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Design of elastic wave metasurfaces based on lattice truss material by Liu, Hongliang, Yang, Zhe, Wang, Wei, Xuan, Chengming, Xu, Weikai

“…Periodic truss materials can be regarded as a kind of phononic crystals, which have both excellent elastic wave band gap properties and good design ability. By…”
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Closed-Form Expressions of Upper Bound for Polarization-MDCSK System by Miao, Meiyuan, Wang, Lin, Xu, Weikai

“…The performance analysis of polarization M-ary differential chaos shift keying (P-MDCSK) has been expressed using a tight upper bound with the Q-function…”
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Multi-objective optimization of thermal expansion and adjustable band gap for a chiral triangular lattice metamaterial by Wang, Wei, Lv, Shuchen, Xu, Weikai, Bai, Liang

“…The development of current science and technology has increased the higher requirements for the versatility of materials. In this study, the band gap…”
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Design of Low-Density Parity-Check Code Pair for Joint Source-Channel Coding Systems Based on Graph Theory by Lv, Yijie, He, Jiguang, Xu, Weikai, Wang, Lin

“…In this article, a graph-theoretic method (taking advantage of constraints among sets associated with the corresponding parity-check matrices) is applied for…”
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Topology optimization of single-groove acoustic metasurfaces using genetic algorithms by Lin, Zibin, Wang, Wei, Xu, Weikai, Yang, Tianzhi

“…Acoustic and elastic waves can be manipulated by a novel artificial metasurface, usually composed of different microstructures. In this paper, the topology…”
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YOLO‐RSFM: An efficient road small object detection method by Tang, Pei, Ding, Zhenyu, Lv, Mao, Jiang, Minnan, Xu, Weikai

“…To tackle challenges in road multi‐object detection, such as object occlusion, small object detection, and multi‐scale object detection difficulties, a new…”
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Mitigation of 2D-ICI in Flash Memory Using Hierarchical Constrained Codes by Zhou, Qi, Xu, Weikai, Wang, Lin, Han, Guojun

“…Inter-cell interference (ICI) significantly affects the reliability of flash memory. Both horizontal and vertical ICI have been taken into account for the…”
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Performance Analysis of the CS-DCSK/BPSK Communication System by Xu, Weikai, Wang, Lin, Chen, Guanrong

“…As a spread spectrum communication system, code-shifted differential chaos shift keying (CS-DCSK) is required to provide reasonable bit error performance in a…”
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A New Continuous Strength Method for Prediction of Strain-Hardening Performance of High-Strength Aluminum Alloy Cylindrical Columns by Chen, Lihui, Xu, Weikai, Chen, Yusong, Sun, Weipeng

“…This paper aims to develop a new continuous strength method (CSM) to more accurately predict the strain-hardening characteristics of high-strength aluminum…”
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Preparation, magnetism and microwave absorption performance of ultra-thin Fe3O4/carbon nanotube sandwich buckypaper by Lu, Shaowei, Xu, Weikai, Xuhai, Xiong, Ma, Keming, Wang, Xiaoqiang

“…Fe3O4/multi-walled carbon nanotubes (MWCNTs) sandwich buckypapers were fabricated with monodispersion solutions of MWCNTs and Fe3O4 nanoparticles through layer…”
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Performance of DCSK Cooperative Communication Systems Over Multipath Fading Channels by Xu, Weikai, Wang, Lin, Chen, Guanrong

“…A differential chaos shift keying cooperative communication (DCSK-CC) system with two users is proposed in this paper, which has an orthogonal subchannel in…”
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