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A PROPOSAL FOR AN IMPROVED TRANSPORTATION MODEL IN CITYGML
3D city modelling CityGML road modelling transporation levels of detail needs analysis
2018/11/9
CityGML, an OGC standard, is an open data model for virtual 3D city models and includes buildings, roads, terrain, water bodies, etc. While many modules are well-developed (eg buildings, bridges, tunn...
An Improved Driving Scheme in an Electrophoretic Display
Electrophoretic displays (EPD) driving scheme waveform reference gray scale DC balance
2016/12/2
Driving scheme in an electrophoretic display often consists of a series of driving waveforms for various image transitions. A driving waveform for a specific image transition is important as it determ...
Multidirectional Asymmetrical Microlens Array Light Control Film for Improved Image in Reflective Color Liquid Crystal Displays
reflective LCDs multidirectional microlens light control film brightness dispersion moire parallax
2011/12/13
A multidirectional asymmetrical microlens array light control film (MAMA-LCF) which can direct light incident from multiple directions collectively for viewing is demonstrated in achieving much enhanc...
Two improved methods of achieving direct overwrite without a pulsed magnetic field to write or erase dingle-layer magneto-optical media with a compensation point of 125-130 and a Curie temperature of ...
Multidirectional Asymmetrical Microlens Array Light Control Film for Improved Image in Reflective Color Liquid Crystal Displays
reflective LCDs multidirectional microlens light control film brightness dispersion moire parallax
2011/11/28
A multidirectional asymmetrical microlens array light control film (MAMA-LCF) which can direct light incident from multiple directions collectively for viewing is demonstrated in achieving much enhanc...
This letter proposes and experimentally demonstrates a cost-effective phase-modulation duobinary modulation scheme for improving self-phase modulation tolerance using a single modulator. Successful tr...
Constant Envelope Optical OFDM for Improved Nonlinear and Phase Noise Tolerance
Fiber optics communication Phase Modulation
2015/5/25
We introduce a new concept of OFDM transmission with constant envelope and coherent detection to reduce the sensitivity of OFDM signals to nonlinear effects and phase noise.
New and Improved Strategies for Optical Protection in Mixed-Line-Rate WDM Networks
Networks combinatorial network design wavelength routing
2015/6/10
Employing Mixed Line Rates (MLR) in optical WDM networks enables new paradigms for protection at lightpath level. We design transparent MLR networks with dedicated protection and achieve significant c...
Link Performance Improved 16QAM-OFDM 60-GHz Radio-over-Fiber System Employing Convolutional Codes
Fiber optical communications Fiber optics links subsystems
2015/6/8
We demonstrated the first transmission of 750-Mb/s 16QAM-OFDM signal over 1-km SMF-28 and 6-m air-link with 60-GHz ROF technology. The system improvement and low-power efficiency of RF transmitter are...
Optical Carrier Suppression and Balanced Coherent Heterodyne Detection for Improved Performance in Wide-band Microwave Photonic Links
Optical Carrier Suppression Balanced Coherent Heterodyne Detection Improved Performance Wide-band Microwave Photonic Links
2015/6/8
We demonstrate a wide-band microwave photonic link with high gain and dynamic range, low noise figure, and dispersion-free propagation using double sideband suppressed carrier modulation, optical ampl...
Improved Aggregated Impairment Information for Bi-directional Lightpath Establishments
Fibre optics an optical communication All-optical networks
2015/6/8
We propose a set of physical parameters for GMPLS signaling to establish bi-directional paths.This reduces the amount of flooded information and speeds-up the path establishment while keeping its risk...
Exploiting Excess Capacity for Improved Robustness in Optical WDM Backbone Mesh Networks
Networks network optimization Networks network survivability
2015/6/4
Any operational network has some excess capacity to accommodate new traffic demands and avoid early exhaustion of bandwidth resources. Exploiting this unused capacity to improve robustness of an optic...
Improved pores detection in fingerprints by applying ring led’s
biometrics fingerprint patterns for identification and verification sensor design applied telecentric optics modulation transfer function (MTF) of an optical system optical properties of the human skin pores (Level 3) matching system performance by statistical analysis
2011/5/9
The requirement to determine the identity of a person is becoming more and more important in
the present information society. There are a number of biometric based identification and
verification sy...
Improved Supercontinuum Generation by Dispersion Tuning and Dual Wavelength Pumping
Dispersion Dual Wavelength Pumping
2015/7/16
Supercontinuum generation in ultra-long Raman fibre laser cavities is compared for a range of fibre dispersions in the anomalous and normal regimes. For normal dispersion improved performance and effi...
A 60° photonic crystal waveguide bend with improved transmission characteristics
photonic crystal waveguide bend bandwidth
2011/5/6
In this paper, a 60° waveguide bend is designed in a two-dimensional (2D) photonic crystal (PC) slab to provide high transmission over a large bandwidth. We apply geometrical modification in the bend ...