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FAST AND ACCURATE CLOSE RANGE 3D MODELLING BY LASER SCANNING SYSTEM
laser scanning, TIN surfaces
2015/3/6
We applied the laser scanner Callidus Precision System to digitise the shape of the three-dimensional small temple inside the Mole
Vanvitelliana in Ancona to build a 3D model. It is a complicated ta...
Accurate Distance Estimation for VANET Using Nanointegrated Devices
Vehicular Ad-Hoc Networks Positioning Systems Wireless Networks Nanotechnology devices CNT Sensors
2013/1/30
Vehicular Ad-Hoc Networks (VANET) is a research venue that promises for many useful applications. Most of these applications require a precise real-time positioning system for each vehicle. However, p...
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 ...
Electronic Pre-Distortion Operating at 1 Sample/symbol with Accurate Bias Control for CD Compensation
Coherent communications Fiber optics links subsystems
2015/6/9
Electronic pre-distortion operating at 1 Sa/sym with anti-aliasing filter and accurate bias control is proposed. This approach guarantees Q penalty within 0.7 dB for 112 Gb/s DP-QPSK coherent system w...
A Novel MoM Approach for Obtaining Accurate and Efficient Solutions in Optical Rib Waveguide
Method of moments optical rib waveguide integrated optics rectangular waveguide
2009/7/28
The optical rib waveguide (ORW) plays an important role in the design of several integrated optical devices. Various methods have been proposed for obtaining the modal field solutions in ORW. However,...
Accurate Digital Frequency Offset Estimator for Coherent PolMux QAM Transmission Systems
Accurate Digital Frequency Offset Estimator PolMux QAM Transmission Systems
2015/7/17
An accurate blind frequency offset estimator adapted to QAM modulated signal is proposed. For coherent 100Gbit/s QAM PolMux transmission, frequency offset can be recovered with an accuracy of a few kH...
Fast and Accurate Automatic Frequency Control for Coherent Receivers
Fast Accurate Automatic Frequency Control Coherent Receivers
2015/7/16
We demonstrate an algorithm for non-data aided spectrum-based automatic frequency control in coher-ent receivers. The proposed algorithm is independent of modulation formats, robust against channel di...
Accurate Optical Frequency Standards in the Optical Fiber Communication Band
Optical frequency standard Optical fiber communications WDM Acetylene
2009/6/12
We have developed accurate optical frequency standards based on acetylene absorption lines in the 1.5 μm optical fiber communication band. We realized acetylene-stabilized diode lasers with a frequenc...
Revisiting Binary Sequence Length Requirements for the Accurate Emulation of Highly Dispersive Transmission Systems
Sequence Length Accurate Emulation Highly Dispersive Transmission Systems
2015/7/31
For accurate emulation, pseudo-random sequence lengths need not exceed requirements of Monte-Carlo theory, scaling like the inverse of the expected bit error rate, even with strong inter-symbol correl...
Accurate measurement of fourth order dispersion coefficient in short highly nonlinear fibers
Accurate measurement fourth order dispersion coefficient short highly nonlinear fibers
2015/7/30
An improved four-wave-mixing method capable of measuring ultra-low values of the fourth-order dispersion coefficient in short highly nonlinear fibers is introduced and validated experimentally.