搜索结果: 1-15 共查到“工学 PMD”相关记录43条 . 查询时间(0.099 秒)
Calibration of a PMD-Camera Using a Planar Calibration Pattern Together with a Multi-Camera Setup
Close Range Photogrammetry 3D Sensors Computer Vision Calibration
2015/12/4
We discuss the joint calibration of novel 3D range cameras based on the time-of-flight principle with the Photonic Mixing Device (PMD) and standard 2D CCD cameras. Due to the small field-o...
Real-time Estimation of the Camera Path from a Sequence of Intrinsically Calibrated PMD Depth Images
Close Range Photogrammetry 3D sensors Computer Vision Adjustment
2015/12/4
In recent years real time active 3D range cameras based on time-of-flight technology using the Photonic-Mixer-Device (PMD) havebeen developed. Those cameras produce sequences of low-resolution d...
针对同时受到偏振模色散（PMD）和偏振相关损耗（PDL）作用的偏振复用系统，在系统接收端采用相干接收方式，利用基于负熵最大化的不动点复数ICA算法（T-CMN算法）对接收到的偏振复用信号进行解复用。仿真结果表明：ICA解复用后的偏振信号的传输质量明显改善，在系统中光信噪比大于20.86 dB时均能保持误码率小于10?9，符合通信系统的传输质量要求。
Interplay between PMD and Nonlinearity in 112 Gb/s DP-QPSK Transmission with Co-propagating 10.7 Gb/s NRZ Channels
Fiber optics communications Coherent communications
2015/5/26
We experimentally demonstrate interplay between PMD and nonlinearity in 112 Gb/s DP-QPSK signal transmission with 10.7 Gb/s NRZ neighbors can have both positive and negative impact depending on channe...
Second-Order PMD Monitoring from Adaptive FIR-Filter Tap Coefficients in a Digital Coherent Receiver
Fiber optic communication Coherent communications Homodyning
2015/5/26
We propose a straightforward algorithm to estimate second-order PMD from adaptive FIR-filter tap coefficients in a digital coherent optical receiver. The novel algorithm is verified with 100-Gbit/s du...
Reduced-Guard-Interval CO-OFDM with Overlapped Frequency-Domain CD and PMD Equalization
Reduced-Guard-Interval CO-OFDM Overlapped Frequency-Domain CD PMD Equalization
2015/5/25
We propose an algorithm for CO-OFDM receivers to perform overlapped frequency-domain CD and PMD equalization before OFDM symbol demodulation. This approach enables OFDM transmission with a small cycli...
PDL and PMD Emulation with Control of Amplitude and Spectral Dependence to a Sub-Channel Level across the C-Band
Optical instruments Optical communications
2015/5/25
We present results of a polarization diverse LCoS wavelength processor. Applications include impairment simulation of broadband, channelized and intra-band PMD and PDL for detailed experimental sensit...
A Novel Dispersion and PMD Tolerant Clock Phase Detector for Coherent Transmission Systems
Novel Dispersion PMD Tolerant Clock Phase Detector Coherent Transmission Systems
2015/5/20
A novel clock phase detector is presented and shown to be tolerant to chromatic dispersion and PMD. The phase detector can be used in a clock recovery circuit for demodulation of 100 Gb/s coherent tra...
Field Trial of In-Service PMD Measurement Using Idle DWDM Channels in Operational Long Haul Network
Long Haul Network DWDM Channels PMD Measurement
2015/5/18
In-service PMD measurement using idle channels in an operational DWDM long-haul network is realized with two novel measurement approaches during a field trial. Accurate PMD results are obtained withou...
Experimental Characterization of Nonlinearity Mitigation by Digital Back Propagation and Nonlinear Polarization Crosstalk Canceller under High PMD condition
High PMD condition Digital Back Propagation Nonlinear Polarization Crosstalk Canceller
2015/5/15
Impact of PMD is evaluated on nonlinear mitigation algorithm. While the backpropagation showed consistent improvement regardless of PMD, the best performance was found under different PMD conditions d...
New PMD-Induced Crosstalk in the Presence of PDL in a Polarization-Multiplexed Ultrahigh-Speed Transmission
PMD-Induced Polarization-Multiplexed Ultrahigh-Speed Transmission
2015/5/15
New impairments in polarization-multiplexed ultrahigh-speed transmission in the presence of PMD and PDL are identified analytically and experimentally. Crosstalk is inevitable even with PSP launching,...
PMD and PDL Behavior of Aerial Fiber with the Accelerated Jones-Matrix Eigenanalysis
Fibers characterization Fiber measurements
2015/6/10
Polarization characteristics of aerial SMF were examined with the accelerated Jones-Matrix Eigenanalysis, comparing to interferometric method. PMD shows strong correlation with environmental changes b...
Impact of PMD and Nonlinear Phase Noise on the Global Optimization of DPSK and DQPSK Systems
Optical communications Phase modulation Nonlinear optics fibers
2015/6/10
Usingaglobaloptimizationalgorithm,wemaximizethereachofDPSKandDQPSKsys-tems including PMD and nonlinear phase noise at data rates ranging from 5Gbit/s to 230Gbit/s.
Equalization of first and second order PMD in 100 GBit/s PolMux Transmission using Optical Butterfly FIR Filters
Fiber optics communications Polarization-selective devices
2015/6/8
PolMux increases PMD sensitivity compared to single polarization transmission. We investigate the equalization of first and second order PMD in the optical domain and determine the respective remainin...
All-Order Polarization Mode Dispersion (PMD) Compensation in 10Gbit/s×4 OTDM System via Hyperfine Resolution Optical Pulse Shaper
Fiber Optics Communications Polarization Fiber optics components Fiber optics sensors
2015/6/8
We experimentally demonstrate optical compensation of all-order polarization mode dispersion with >50ps mean differential group delay in a 10Gbit/s×4 OTDM system using an optical pulse shaper with 1.6...