搜索结果: 1-15 共查到“光信息技术 performance”相关记录31条 . 查询时间(0.14 秒)
PERFORMANCE ASSESSMENT OF FULLY AUTOMATIC THREE-DIMENSIONAL CITY MODEL RECONSTRUCTION METHODS
Building Modelling City DSM/DTM
2014/4/28
Three-dimensional urban region representations can be used for detailed urban monitoring, change and damage detection purposes. In order to obtain three-dimensional representation, one of the easiest ...
Comparative Assessment on the Performance of Open-Loop and Closed-Loop IFOGs
Feedback Erbium-Doped Fiber Amplifier FOG (FE-FOG) Erbium-Doped Fiber Amplifier (EFDA) Digital Signal Processing PSCAD FIR Digital Filters Interferometric Fiber Optic Gyro (IFOG) Sagnac Shift
2013/1/30
In this paper, we evaluated comprehensively the structure and operation of open-loop interferometric optical fiber gyroscopes (IFOG). To complete the previous works, a digital approach to derive the r...
Performance of Optical Fast-OFDM in MMF-Based Links
Fiber optics communications Modulation
2015/5/26
19.375Gb/s optical Fast-OFDM signals can be transmitted over 500m worst-case MMF DML-based links having 3-dB effective bandwidths of 150MHz.km. This performance is similar to that corresponding to a c...
Performance Improvement by Fibre Nonlinearity Compensation in 112 Gb/s PM M-ary QAM
Coherent communications Nonlinear optics fibers
2015/5/26
We demonstrate that digital back-propagation offers up to six-fold enhancement in transmission reach when nonlinear fibre impairments are compensated in coherently-detected 112 Gb/s PM m-ary QAM, with...
Fast Barrier Synchronization with AWGR-based Optical Switch in High-performance and Parallel Computing
Networks Optical communications
2015/5/25
We demonstrate speedup of barrier synchronization for parallel computing via wavelength parallelism of the optical switch using a k-ary tree to collect updates without incurring contention, and optica...
A Bidirectional 2×2 Photonic Network Building-Block for High-Performance Data Centers
Networks Optical interconnects
2015/5/22
The design of a unique bidirectional 2×2 SOA-based optical switch is detailed and experimentally validated. Error-free operation and routing correctness is verified for 4×10Gb/s pseudorandom messages.
Complexity versus Performance Tradeoff for Fiber Nonlinearity Compensation Using Frequency-Shaped, Multi-Subband Backpropagation
optics, fibers Nonlinear optical signal processing Wave propagation
2015/5/21
We investigate the use of an enhanced backpropagation algorithm where subbanding and frequency-shaping by pre- and post-filters are used in the calculation of nonlinearity to enable larger step sizes ...
Bit-error Rate Performance of Nyquist Wavelength-Division Multiplexed Quadrature Phase-Shift Keying Optical Signals
Coherent communications Multiplexing Optical communications
2015/5/20
We measure bit-error rates of polarization-multiplexed Nyquist-WDM QPSK signals,which have rectangular spectral shapes and channel spacing equal to the symbol rate. The spectral efficiency of 4 bit/s/...
“Real World” FTTH Optical-to-Radio Interface Performance for Bi-directional Multi-Format OFDM Wireless Signal Transmission
Real World FTTH Optical Radio Interface Performance Bi-directional OFDM Wireless Signal Transmission
2015/5/18
The optical-to-radio and radio-to-optical interfaces in fiber-to-the-home access networks were evaluated for LTE, WiMAX and UWB simultaneous distribution. Successful bi-directional transmission was ac...
Performance Assessment of an Optimized Optical Supercomputer Interconnect Architecture
Optimized Optical Performance upercomputer Assessment
2015/5/18
We investigate the performance of an optimized optical supercomputer interconnect architecture using a minimum number of on-off gates. A 64×64 optical interconnection is demonstrated using 10 Gb/s IM/...
A Novel Monitor Placement Algorithm for Accurate Performance Monitoring in Optical Network
Optical Network Accurate Performance Monitoring Placement Algorithm
2015/5/15
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 ...
Experimental Demonstration of Adaptive Bit and/or Power Loading for Maximising Real-Time End-to-End Optical OFDM Transmission Performance
Adaptive Bit Real-Time End-to-End Optical OFDM Transmission Performance
2015/5/15
For the first time adaptive bit and/or power loading of real-time, end-to-end optical OFDM transceivers are experimentally demonstrated and compared. Low-complexity power loading only results in a pen...
Study on the Performance of Decision-Aided Maximum Likelihood Phase Estimation with a Forgetting Factor
Forgetting Factor Decision-Aided Maximum Likelihood Phase
2015/5/15
A structure of non-adaptive decision-aided maximum likelihood is demonstrated by introducing a forgetting factor via both analysis and experiments, which achieves the same performance as the adaptive ...
Blocking Performance in Dynamic Optical Networks based on Colorless,Non-directional ROADMs
Dynamic Optical Network Blocking Performance Non-directional ROADM
2015/5/15
We show that blocking in dynamic networks of colorless, non-directional ROADMs is tolerant to intra-node contention when contention-aware routing/wavelength assignment (RWA) algorithms are used. An op...
Performance Comparison of 112 Gb/s PM-QPSK Transmission with NZ-DSF Dispersion Compensation Configurations for Lower Bit Rates
Dispersion Compensation Lower Bit Rates Performance Comparison
2015/5/14
We investigate transmission performance for 112 Gb/s PM-QPSK DWDM systems over NZ-DSF with configurations enabled by NZ-DSF dispersion characteristics. We find flexibility in dispersion compensation f...