A5101701532- Advanced Photonic Communication Systems
- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Advanced Optical Network Technologies
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Millimeter-Wave Propagation and Modeling
- Advanced Fiber Optic Sensors
- Advanced Computational Techniques and Applications
- Robotic Path Planning Algorithms
- Power Systems and Technologies
- Microwave Engineering and Waveguides
- Particle accelerators and beam dynamics
- Wireless Communication Networks Research
- Network Traffic and Congestion Control
- Particle Accelerators and Free-Electron Lasers
- Optical Wireless Communication Technologies
- graph theory and CDMA systems
- Peer-to-Peer Network Technologies
- PAPR reduction in OFDM
- Software-Defined Networks and 5G
- Magnetic confinement fusion research
- Mobile Agent-Based Network Management
- Telecommunications and Broadcasting Technologies
- Control and Dynamics of Mobile Robots
Guangdong Medical College
2025
Chinese Academy of Sciences
2024
University of Chinese Academy of Sciences
2024
Institute of Automation
2024
Shanghai University
2008-2018
National Synchrotron Radiation Research Center
2006
University of Kang Ning
2005
To optimize flapping foil performance, in the current study we apply deep reinforcement learning (DRL) to plan non-parametric motion, as traditional control techniques and simplified motions cannot fully model nonlinear, unsteady high-dimensional foil–vortex interactions. Therefore, a DRL training framework is proposed based on proximal policy optimization algorithm transformer architecture, where initialized from sinusoidal expert display. We first demonstrate effectiveness of DRL-training...
The performance of the optical frequency comb generation based on re-circulating shifter has been analyzed and demonstrated in this paper. We have theoretically condition for flatness relative intensity noise influence. And resulting analysis confirmed by a successfully generated 16 lines, which are stable flat with spacing 12.5 GHz.
A project to replace two existing room-temperature radio frequency (RF) cavities by one CESR-III 500 MHz superconducting (SRF) module was initiated for the Taiwan Light Source (TLS) synchrotron ring in 1999. The goals are double photon flux of light doubling electron beam current and increase stability taking advantage ultra-weak high-order modes (HOM) SRF cavity. has been routinely operated since February 2005. NSRRC users have benefited from a very high (Δ I <inf...
This paper is dealing with the non-linear distortion of different optical modulators including directly modulated laser diode (LD), Mach-Zehnder modulator (MZM) and reflective semi-conductor amplifier (RSOA), which are candidates device used to make colorless ONUs. To analyze performance a unified mathematic model developed in OFDM signal output from an expressed as power series 1<sup>-st</sup> order higher terms. Based on this statistical model, computed compared. The effect third...
This paper is concerned with the effect of nonlinearity an MZM (Mach-Zehnder modulator) on optical OFDM signal distortion. The output from expressed as a Taylor series including third-order and fifth-order nonlinear distortion terms, by which we can easily establish mathematical model signals in different formats rates. According to model, get EVM at optimized point. Moreover, proposed theoretical proved good agreement experiment results RoF (Radio over Fiber) system.
A novel 40 GHz-RoF bidirectional transmission system with pilot technique is presented and proved by experiment. Optical frequency multiplying technology employed in downlink to generate GHz millimeter-wave signal modulated 100 Mb/s data a tone inserted at center station provide reference for downconversion uplink of base station.
This paper presents a novel and low cost optical QPSK scheme for mmRoF system to produce the 58.5GHz mm-wave signal by using two dual-electrode MZMs both continuous phase modulation.
In this paper, the crossing statistics of phase processes in Rice fading channels are studied. Closed expressions derived for rate process. Since Rayleigh channel is a special case where line-of-sight component disappeared, expression can be verified by comparison with results channel. addition, analytical excellently fitted those obtained from computer simulations. The presented useful, example, studying phase-locked-loop tracking technology when considering transmission over channels.
This paper introduces a new bidirectional mmRoF system based on optical frequency multiplication (OFM) scheme using dual drive Mach-Zehnder Modulator (DD-MZM) and OFDM modulation. The emphasis is put the optimization of modulation index to MZ intensity modulator for signal with high PAR which imposes limitation bit error rate (BER) performance due nonlinearity modulator. theoretic analysis carrier composite triple beat ratio performed. extension BER QAM format presented experimental proof...
A novel bi-directional mmRoF system based on OFM is introduced by using DD-MZM as high-order optical side-modes generator and intensity modulator to carry OFDM signals the carrier. Those beat in PD producing 40 GHz pure local signal 37.6 OFDM-modulated signal.
The effects of triple beat interference, ASE, electric circuit and shot noise are entirely analyzed to research receiver sensitivity in MP2P uplink OFDM-PON draw SNR curves guide PHY layer design OFDM-PON.
A 100/40 Gb/s OFDM-PON with bi-directional low cost/complexity self-coherent homodyne detection is experimental demonstrated by using centralized optical comb 0.1 nm wavelength interval to provides both the signal-carrier and local oscillation light waves.
An effective pilot-aided and BPS combined algorithm for phase estimation in coherent OFDM systems is proposed. Complexity reduction with a factor of 3 band-width utilization incensement 2 experiment verified.
This paper introduces in detail a novel 40-GHz radio over fiber (RoF) system based on optical frequency multiplication with up to 1.4Gbps 16QAM-OFDM wireless signal employing Mach-Zehnder modulator no filtering. And also what is discovered as expected during the experiment --- optimal driving power of intensity (IM) relieve high peak-to-average ratio (PAPR) OFDM an acceptable SNR.
This paper is concerned with the effect of nonlinearity an MZM (Mach-Zehnder modulator) on optical OFDM signal distortion. The output from expressed as a Taylor series including third-order and fifth-order nonlinear distortion terms, by which we can easily establish mathematical model signals in different formats rates. According to model, get EVM at optimized point. Moreover, proposed theoretical proved good agreement experiment results RoF (Radio over Fiber) system.
This paper discusses an intelligent decision support system (IDSS) applied to the investment of real estate. The IDSS and corresponding software package can not only account development cost estate, but also analyze market's condition evaluate project through economical risk analyses. A simulation experiment shows that assist estate investors make quick, reasonable scientific in process investment.
This paper introduces two schemes to generate millimeter-wave (mm-wave) BPSK and M-ASK signals in Base Station Radio over Fiber (RoF) system based on cascaded Dual-Drive Mach-Zehnder modulators (DD-MZM). A BPSKmodulated mm-wave RoF is proposed by controlling the amplitudes of baseband digital signal. Another scheme M-ASK-modulated BS commanding power Intermediated Frequency (IF) Both can make remote local reference signal available BS, which makes costefficient. The are verified theoretical...
Effect of laser linewidth on millimeter-wave radio-over-fiber system employing optical frequency multiplying technology is presented. By quantitative analysis, it revealed that Mach-Zehnder interferometer as periodic filter has more ability than Fabry-Perot against the effect linewidth.