A5053689984- Metamaterials and Metasurfaces Applications
- Advanced Wireless Communication Technologies
- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Advanced Wireless Communication Techniques
- PAPR reduction in OFDM
- Advanced MIMO Systems Optimization
- Optical Systems and Laser Technology
- Plasmonic and Surface Plasmon Research
- Advanced Biosensing Techniques and Applications
- Oil and Gas Production Techniques
- Blood properties and coagulation
- IoT Networks and Protocols
- Digital Imaging for Blood Diseases
- Microfluidic and Capillary Electrophoresis Applications
- Optical Network Technologies
- Power Line Inspection Robots
- Advanced Measurement and Detection Methods
- Biosensors and Analytical Detection
- Erythrocyte Function and Pathophysiology
- Wireless Communication Security Techniques
- Advanced Photonic Communication Systems
- Wireless Communication Networks Research
- Advanced Measurement and Metrology Techniques
- Hydraulic and Pneumatic Systems
Beijing University of Posts and Telecommunications
2017-2022
State Key Laboratory of Transducer Technology
2016
Chinese Academy of Sciences
2016
Institute of Electronics
2016
Changchun Institute of Optics, Fine Mechanics and Physics
2015
Two types of broadband and polarization independent graphene metamaterial absorbers are designed. One is a composite four-ring structure with azimuthally symmetry, the other nested multi-ring structure. The more compact has broader band absorption. bandwidth over 90% absorption 7.1 THz for increases to 8.7 11.9 dual-ring three-ring absorber, respectively. wide owe combination symmetric multi-resonators different sizes in unit cell. Physical mechanisms given by impedance matching theory as...
This paper proposes an efficiency-tunable terahertz focusing lens based on the graphene metasurface. The unit cell is composed of two symmetrical circular hollows and intermediate dielectric layer, wherein hollow middle connected by a rectangular sheet. structure can realize polarization conversion, for example, when incidence with left-hand emitted metasurface transmitted light right-hand polarization. According to principle geometric phase, rotating direction bar, wave will carry...
Two-user non-orthogonal multiple access systems with quadrature phase-shift keying modulation are studied. A time asynchronous scheme for successive interference cancellation receivers that maximally suppresses the inter-user compared to any other schemes is proposed. Exact bit error rate (BER) solutions two users operating in additive white Gaussian noise channel using proposed derived. simpler closed-form BER approximation weaker user also presented. Compared symbol-synchronous scheme,...
Analysis on the exact error rate of jointly optimal (JO) maximum likelihood (ML) multiuser detection is limited in existing literature owing to its high computational complexity. In this paper, JO ML two quadrature phase-shift keying (QPSK) signals with an arbitrary relative phase offset investigated. Exact, analytical symbol (SER) and bit (BER) formulas are derived for users no less than 3 dB power difference between them. Closed-form union bounds user SER BER ratio also given as a simpler...
We investigate multiuser detection under uplink asynchronous scenario, where the triangular successive interference cancellation (T-SIC) scheme is exploited. As existing analysis was conducted some ideal assumptions for simplicity, scenario analyzed rigorous in this paper so that important insights are revealed practical systems. Specifically, average symbol error rate (SER) formulas derived a two-user system with arbitrary <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML"...
This paper focuses on sparse Volterra filter in high power budget IMDD OFDM-PON. The simulation results show that the @ 50Gbps is up to 32dB with low complexity equalizer ONU receivers. experimental this scheme could achieve 20 Gbps transmission over 95-km SMF.
In order to load a missile with T-drawbar into the rack fixed in fighter plane automatically and quickly, relative position between must be measured. The principle of measuring method is introduced, parameters calculating equations are derived, precisions analyzed. system composed lens, planar array CCDs, lasers, cooperative objects. By analyses, can measure information including X, Y Z drawbar rack. length 7.8mm 1.2mm Z.
We have presented a three dimensional optical protein chip that fulfills the demanding for point-of-care diagnostics in terms of ease-of-use (one step assay), miniaturization (5 μl). The artful combination magnetic nanoparticles on and total internal reflection imaging (TIRI) technology permits sensitive rapid detection hs-CRP (high-sensitivity C-reactive protein). whole test was complete within 10 min using “all one step” assay with limit 0.1 ng/mL hs-CRP. measuring range could be extended...