Ochiq optik aloqani o‘rnatish imkoniyatlari: ob-havo, chastota va relyef omillari
Kalit so'zlar:
ochiq optik aloqa, ob-havo omillari, optik chastota, relyef, lazer nuri, optik kanal, atmosfera sochilishi, aloqa masofasi, telekommunikatsiya tizimlariAnnotatsiya
Maqolada ochiq optik aloqa tizimining o‘rnatilishi va ishlashiga ta’sir etuvchi asosiy omillar tahlil qilinadi. FSO texnologiyasi yuqori tezlikda ma’lumot uzatish, radiochastotalardan mustaqil ishlash va qisqa vaqt ichida o‘rnatish imkoniyatiga ega bo‘lgani uchun favqulodda vaziyatlarda hamda infratuzilmasi cheklangan hududlarda muhim ahamiyat kasb etadi. Biroq uning samaradorligi ob-havo sharoitlari, optik chastotalarning atmosferadagi tarqalish xususiyatlari va hudud relyefiga bevosita bog‘liq. Tuman, yomg‘ir va chang kabi omillar optik nurning sochilishiga va yutilishiga sabab bo‘lib, aloqa masofasini kamaytiradi. Eng shaffof diapazonlarda ishlovchi chastotalar tizimning barqarorligini oshiradi. Hududning tekis yoki tog‘li bo‘lishi ko‘rish chizig‘ining mavjudligini belgilaydi va o‘rnatish jarayonida muhim omil sifatida qaraladi. Umumiy xulosa sifatida, FSO texnologiyasi O‘zbekiston sharoitida samarali va istiqbolli aloqa yechimlaridan biri hisoblanadi
Библиографические ссылки
1. H. Henniger and O. Wilfert, “An introduction to free-space optical communications,” Radioengineering, vol. 19, no. 2, pp. 203–212, 2010.
2. H. E. Nistazakis, T. A. Tsiftsis, and G. S. Tombras, “Performance analysis of free-space optical communication systems over atmospheric turbulence channels,” IET Commun. , vol. 3, no. 8, pp. 1402–1409, 2009.
3. L. Dordova and O. Wilfert, “Optimal laser diode operating mode with unstable operating temperature in turbulent atmosphere,” Semicond. Lasers Laser Dyn. III, vol. 6997, p. 69971G, 2008.
4. H. Weichel, “Laser beam propagation in the atmosphere,” vol. 3, no. SPIE press, 1990.
5. L. S. Jabeena, T. Jayabarathi, R. Aggarwal, “Review on Optimization of Wireless Optical Communication System,” Trends Opto-Electro Opt. Commun. , vol. 4, pp. 9–19, 2014.
6. R. K. Gupta, P. Anand, R. Khajuria, S. Bhagat, “A survey of free space optical communication network channel over optical fiber cable communication,” Int. J. Comput. Appl. , vol. 105, 2014.
7. S. A. Al-Gailani, A. B. Mohammad, and R. Q. Shaddad, “Enhancement of free space optical link in heavy rain attenuation using multiple beam concept,” Optik (Stuttg). , vol. 124, no. 21, pp. 4798–4801, 2013.
8. S. A. Al-Gailani, A. B. Mohammad, R. Q. Shaddad, U. U. Sheikh, and M. A. Elmagzoub, “Hybrid WDM/multibeam free-space optics for multigigabit access network,” Photonic Netw. Commun. , vol. 29, no. 2, pp. 138–145, 2015.
9. J. A. DeCarvalho, H. Veiga, P. A. J. Gomes, C. F. Pacheco, and A. D. Reis, “Experimental performance study of a very high speed free space optics link at the university of Beira Interior campus: A case study,” Proc. 8th IEEE Int. Symp. Signal Process. Inf. Technol. ISSPIT 2008, pp. 154–157, 2008.
