Results 131 to 140 of about 3,201 (178)

Multiclass Segmentation by Iterated ROF Thresholding

2013
Variational models as the Mumford-Shah model and the active contour model have many applications in image segmentation. In this paper, we propose a new multiclass segmentation model by combining the Rudin-Osher-Fatemi model with an iterative thresholding procedure.
Xiaohao Cai, Gabriele Steidl
openaire   +3 more sources

ROF-RVC based mobile CATV system

14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003., 2004
This paper reports about fundamental transmission performance for ROF-RVC based mobile CATV system. We have proposed the concept of multiple services transmission for RVC system, where several services signals are integrated on the same radio frequency band by exploiting the broadband transmission capability of ROF system, and thereby achieves simple ...
Fumihide Kojima, Masayuki Fujise, Hirokazu Okita, Yasuo Sekikawa   +3 more
openaire   +1 more source

Optically reconfigurable fractal antennas for RoF systems

2012 35th International Conference on Telecommunications and Signal Processing (TSP), 2012
This study presents the operating frequency reconfigurability for the Sierpinski gasket fractal antenna. This design may be a good candidate for RF over fiber (RoF) systems in which the built-in optical systems have already been included. Doped silicon with a suitable laser light is considered as a switching component.
Ayhan Yazgan, Oguzhan Çakir, Haydar Kaya, I. Hakki Çavdar   +3 more
openaire   +2 more sources

ROF Technology in Intelligent Residential Community

2012 Symposium on Photonics and Optoelectronics, 2012
This paper analyzes the system architecture and technical characteristics of Radio over Fiber (ROF), and it proposed the communication network structure and the detailed technical solutions of the intelligent residential community which based on ROF technology. Finally, the paper discussed the technical problems during the implementation process.
Yuan Cheng, Chengjie Qiu
openaire   +1 more source

ROF Puriton, Bridgwater, Somerset

2012
Grey literature client ...
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ROF Featherstone, Featherstone, Wolverhampton, Staffordshire

2021
The evaluation fieldwork comprised the excavation of 25 trenches. 17 trenches measured 50m x 1.8m, a further 7 trenches measured 25m v 1.8m and 1 trench measured 45m x 1.8m. The trenches targeted areas of the site that were likely to be impacted by development groundworks and where the results of the preceding geophysical survey (GSB 2004) indicated a ...
openaire   +1 more source

Multistandard RoF bus for in-building networks

2011 International Topical Meeting on Microwave Photonics jointly held with the 2011 Asia-Pacific Microwave Photonics Conference, 2011
This paper presents an optical bus architecture for multistandard communications which is competitive in cost and performance as regards typical star architecture. A point-to-point optical link is characterized by means of noise figure measurements before providing link budget calculations for the bus architecture.
Zine Bouhamri, Vincent Dobremez, Yannis Le Guennec, Jean-Marc Duchamp, Ghislaine Maury, Beatrice Cabon   +5 more
openaire   +1 more source

Optical device models for RoF systems

2017 International Multi-Conference on Engineering, Computer and Information Sciences (SIBIRCON), 2017
This paper studies engineering design and modeling of an optical device intended for Radio-over-Fiber (RoF) antenna array radio emitting management. Design and assembled models of the device are based on either profiled multiple-wave interferometer or long-haul ring topology FOCL.
Irina L. Vinogradova, Anna V. Voronkova, Ivan K. Meshkov, Albert Kh. Sultanov, Guzel I. Abdrakhmanova, Elizaveta P. Grakhova, Arsen A. Ishmiyarov, Liliya Z. Yantilina, Gulnaz R. Kutlieva, Ruslan V. Kutluyarov, Vyacheslav V. Antonov   +10 more
openaire   +1 more source

Rof Carballo, Juan

2006
Juan Rof Carballo è una delle più significative figure di medico-filosofo della prima metà del XX secolo in Spagna -
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RoF system standardization at ITU-T

2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2017
Trends of standardization related on radio-over-fiber (RoF) technologies and systems at International Telecommunication Union Telecommunication Standardization Sector (ITU-T) are introduced.
openaire   +1 more source