搜索结果: 1-12 共查到“光信息技术 Monitoring”相关记录12条 . 查询时间(0.024 秒)
3D Case Studies of Monitoring Dynamic Structural Tests using Long Exposure Imagery
Vibration Engineering Monitoring Long Exposure Imagery Image Processing Close Range Photogrammetry
2014/6/30
Structural health monitoring uses non-destructive testing programmes to detect long-term degradation phenomena in civil engineering structures. Structural testing may also be carried out to assess a s...
Real Time Monitoring of Fluorescent Particles in Micro-Channels by High Resolution Dual Modality Probe Imaging
Microscopy Image Fiber Spectrophotometer Microchannel
2011/12/5
Imaging of micro particles in micro-fluidic channels is one of the recent thrust areas in research as it provides more flexibility in setup and analysis compared to conventional microscopy. However, a...
Characterization and Monitoring of Laser Linewidths in Coherent Optical OFDM Systems
Fiber optics communications Modulation
2011/5/26
We demonstrate monitoring of digitally-generated laser linewidths for 107-Gb/s coherent optical OFDM systems. Unique characteristics of time-domain phase-error variance are exploited to extract laser ...
A Novel Monitor Placement Algorithm for Accurate Performance Monitoring in Optical Network
Optical Network Accurate Performance Monitoring Placement Algorithm
2011/5/15
We propose a novel monitor placement algorithm that reduces significantly the number of monitors required to accurately assess the QoT of all lightpaths established in an optical network, compared to ...
Phasor Monitoring of DxPSK Signals Using Software-Based Synchronization Technique
Fiber optics communications Phase modulation
2010/6/8
We develop a novel technique to obtain the constellation diagram from asynchronously sampled data measured by using the delay-detection technique, and demonstrate the constellation monitoring of 10.7-...
Wide Dynamic Range OSNR Monitoring for RZ-DQPSK Systems using Delay-Tap Sampling Technique
Fiber optics communications Fiber optics links subsystems
2010/6/5
We propose half-symbol delay-tap sampling for OSNR monitoring and extend the monitoring range to 5−45 dB. The proposed method also enables calibration-free monitoring with range of 16−43 d...
Two-Stage Constant Modulus Algorithm Equalizer for Singularity Free Operation and Optical Performance Monitoring in Optical Coherent Receiver
Fiber optics communications Coherent communications Polarization
2010/6/5
A two-stage constant-modulus-algorithm (CMA) equalizer for polarization-demultiplexing in a polarization-division-multiplexed coherent receiver is demonstrated. The equalizer eliminates the singularit...
Optically Powered Low-Energy Demarcation Device for Monitoring FTTx Networks
Fiber optics optical communications Remote sensing sensors
2010/6/5
We demonstrate an energy-autarkic FTTx monitor. A special protocol and sophisti-cated hardware reduce the electrical operating power to 0.7μW, which can be delivered by an optical supply signal of onl...
XPM Tolerant Adaptive Carrier Phase Recovery for Coherent Receiver Based on Phase Noise Statistics Monitoring
XPM Tolerant Adaptive Carrier Phase Recovery Coherent Receiver Phase Noise Statistics
2009/7/17
According to the monitored phase noise statistics, the averaging weights in carrier phase recovery is adaptively optimized. Comparing with existing optimization techniques, 1dB Q value improvement can...
Dissemination of Monitoring Information in Transparent Optical Networks
Dissemination Monitoring Information Transparent Optical Networks
2009/7/14
The PCE architecture is designed to be a cost-effective solution for computing optimal paths in next-generation core networks. In this paper we propose a method for disseminating optical monitoring in...
Experimental Investigation of Adaptive Electrical Dispersion Compensation Using Eye Monitoring LSI in 43 Gbit/s RZ-DPSK signal
Adaptive Electrical Dispersion Compensation Eye Monitoring RZ-DPSK signal
2008/8/4
We propose an adaptive electrical dispersion compensation using newly developed high-speed eye monitoring LSI, and demonstrated experimentally the effective enlargement of PMD tolerance in 43 Gbit/s R...
High-speed and Simple Estimation Algorithm of Waveform Distortions using a 43-Gb/s SiGe-based Eye-Monitoring LSI
Estimation Algorithm Waveform Distortions Eye-Monitoring LSI
2008/7/31
We propose a high-speed and simple estimation algorithm of waveform distortions using a 43-Gb/s SiGe-based eye-monitoring LSI, and experimentally demonstrate precise estimations of PMD and chromatic d...