##plugins.themes.bootstrap3.article.main##

The increasing evolution and development of telecommunications as well as the need for wider bandwidths to comply with the users’ needs, has led to the development of the so-called free space optical communications. The advantages of optical communications in comparison to radio frequency communications draw interest for certain military applications.

This paper describes the simulation, development and implementation of an optical communication system which integrates the various functional blocks of the optical emitter and the optical receiver and presents some theoretical considerations about the specific characteristics of the propagation of the optical signals in free space. The implementation of this system in military vehicles to allow wider bandwidth in military communications, as well as to function as an alternative system to the used systems, is one of the objectives of this dissertation.

For this purpose, two circuits (emitter and receiver) were projected and designed including the design of printed circuit boards (PCB) and performed some simulations of the optical part of the complete system and the electronic simulation of some parts of the electronic circuits.

References

  1. S. Tzu, The Art of War, USA: Harper Collins, 2011.
     Google Scholar
  2. K. Perusich, Information Warfare: Radar in World War II as an Historic Example, in International Symposium on Technology and Society, South Bend, USA, 1997.
     Google Scholar
  3. S. A. D. Kedan, Urban optical wireless communication networks: the main challenges and possible solutions, IEEE Communications (2004), S2-S7.
     Google Scholar
  4. G. Keiser, Optical Fiber Communications, McGraw-Hill International Editions - Second Edition.
     Google Scholar
  5. Hamamatsu, [Online]. Available: http://www.hamamatsu.com/eu/en/community/ automotive/interior/car_to_x.html. [Accessed 12 Outubro 2018].
     Google Scholar
  6. VICS, [Online]. Available: http://www.vics.or.jp/en/vics/. [Accessed 10 Outubro 2018].
     Google Scholar
  7. COOPERS, Co-operative Networks for Intelligent Road Safety - Final report on demonstration, COOPERS integrated project, 2010.
     Google Scholar
  8. N. Kumar, Visible Light Communication Based Traffic Information Broadcasting Systems, International Journal of Future Computer and Communication 3 (2014), 26-30.
     Google Scholar
  9. A. K. A. S. Abrar Soudgar, Li-fi: An Infallible Standard for Future Indoor Communication, in International Conference on Electronics, Communication and Aerospace Technology (ICECA), 2017.
     Google Scholar
  10. I. I. A. E. K. Kim, Availability of Free Space Optics (FSO) and Hybrid FSO/RF Systems, Optical Access, Incorporated, 2002.
     Google Scholar
  11. J. Oscarsson, Simulation of Optical Communication for Formation Flying Spacecraft, Suécia, 2008.
     Google Scholar
  12. M. J. Barroso, O sistema de informação e comunicações tático (SIC-T) do Exército Português - Implicações doutrinárias, IESM, Lisboa, 2008.
     Google Scholar
  13. EDA, European Defence Agency, [Online]. Available: https://www.eda.
     Google Scholar
  14. europa.eu/docs/documents/Extract_from_NEC_Vision_Report.pdf. [Accessed 12 Outubro 2018].
     Google Scholar
  15. E. Português, Exército Português, [Online]. Available: https://www.exercito.pt/pt. [Accessed 12 Outubro 2018].
     Google Scholar
  16. MAX3643. [Online]. Available: https://datasheets.maximintegrated.com/en/ds/ MAX3643.pdf. [Accessed 12 Outubro 2018].
     Google Scholar
  17. J. Trindade, Sistema de comunicação ótica inter-satélites para aplicações em Defesa - I, Instituto Superior Técnico, Lisboa, 2016.
     Google Scholar
  18. T. Electronics, Laser OPV310, OPV310, OPV310Y, OPV314, OPV314Y, [Online]. Available: http://www.ttelectronics.com/sites/default/files/downloadfiles/OPV300-310Y-314Y_4.pdf. [Accessed 12 Outubro 2018].
     Google Scholar
  19. MAXIM, Maxim Integrated, MAXIM, [Online]. Available: https://datasheets. maximintegrated.com/en/ds/MAX3654.pdf. [Accessed 12 Outubro 2018].
     Google Scholar
  20. M. &. C. M. Vítor, Simulador de Receptor Óptico Digital de Modulação de Intensidade e Detecção Directa, Instituto Superior Técnico, Lisboa, 2009.
     Google Scholar
  21. Marques, Pedro, et al. "Communication Antenas for UAVs." Journal of Engineering Science and Technology Review 11.1 (2018): 90-102.
     Google Scholar
  22. Carneiro, António Fernando Alves, et al. "Smart Antenna forApplication in UAVs." Information ,9.12 (2018): 328.
     Google Scholar
  23. Gomes, Rui David Furtado Ribeiro, et al. "Study of a nano optical antenna for intersatellite communications." Optical and Quantum Electronics 49.4 (2017): 135.
     Google Scholar
  24. Torres, João Paulo N., et al. "The effect of shading on photovoltaic solar panels." Energy Systems 9.1 (2018): 195-208.
     Google Scholar
  25. Fernandes, Carlos AF, et al. "Cell string layout in solar photovoltaic collectors." Energy Conversion and Management 149 (2017): 997-1009.
     Google Scholar
  26. Fernandes, Carlos AF, et al. "Aging of solar PV plants and mitigation of their consequences." 2016 IEEE International Power Electronics and Motion Control Conference (PEMC). IEEE, 2016.
     Google Scholar
  27. Nashih, Samuel K., et al. "Validation of a simulation model for analysis of shading effects on photovoltaic panels." Journal of Solar Energy Engineering 138.4 (2016).
     Google Scholar
  28. Torres, João Paulo N., et al. "Effect of reflector geometry in the annual received radiation of low concentration photovoltaic systems." Energies 11.7 (2018): 1878.
     Google Scholar
  29. Alves, Pedro, et al. "From Sweden to Portugal: The effect of very distinct climate zones on energy efficiency of a concentrating photovoltaic/thermal system (CPV/T)." Solar Energy 188 (2019): 96-110.
     Google Scholar
  30. Campos, Catarina Sofia, João Paulo N. Torres, and João FP Fernandes. "Effects of the heat transfer fluid selection on the efficiency of a hybrid concentrated photovoltaic and thermal collector." Energies 12.9 (2019): 1814.
     Google Scholar
  31. Marques, Luís, João Paulo N. Torres, and PJ Costa Branco. "Triangular shape geometry in a Solarus AB concentrating photovoltaic-thermal collector." International Journal on Interactive Design and Manufacturing (IJIDeM) 12.4 (2018): 1455-1468.
     Google Scholar
  32. Gomes, João, et al. "Analysis of different C-PVT reflector geometries." 2016 IEEE International Power Electronics and Motion Control Conference (PEMC). IEEE, 2016.
     Google Scholar
  33. Fernandes, Carlos AF, et al. "Stationary solar concentrating photovoltaic-thermal collector—cell string layout." 2016 IEEE International Power Electronics and Motion Control Conference (PEMC). IEEE, 2016.
     Google Scholar


Most read articles by the same author(s)