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12 results on '"Lekić A"'

1. A solution for the over-the-horizon-radar simulator

Author

Bojan R. Džolić, Mladen Đ. Veinović, Vladimir D. Orlić, Nikola L. Lekić, and Nemanja R. Grbić

Subjects
020301 aerospace & aeronautics, Radar cross-section, Computer science, 020206 networking & telecommunications, 02 engineering and technology, Engineering (General). Civil engineering (General), radar cross-section, Military Science, Over-the-horizon radar, 0203 mechanical engineering, over-the-horizon-radar, 0202 electrical engineering, electronic engineering, information engineering, radar simulator, TA1-2040, exclusive economic zone, Physics::Atmospheric and Oceanic Physics, Remote sensing
Abstract

Introduction/purpose: The OTHR simulator presented in this paper is developed and used in practice, with the aim of emulating radar signal environment, but also optimizing the radar parameters in real applications such as: radiated power, antenna array gain, path loss, radar cross section, external interference, and noises. Methods: In this paper, the methodology of mathematical modeling is used as well as simulations . Results: Based on the performed analysis, the output data from the OTHR simulator is presented and discussed. Conclusion: The usage of the presented OTHR simulator makes assessing the reliability of a potential radar at predetermined locations automated, controllable and efficient, with results closely matching radar behavior in real operation.

Published
2020
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3. Analizator radarske površine rotirajućeg cilja

Author

Nikola Lekić

Subjects
Military Science, Engineering (General). Civil engineering (General), TA1-2040
Abstract

U radu je opisana metoda analize radarske površine rotirajućeg cilja po azimutu i realizovan merni sistem. Na osnovu izmerenog dijagrama raspršenja obradom se dobija distribucija 'bleštećih tačaka' radarske površine.

Published
1993
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5. Izazovi nove hrane/Challenges of new food

Author

Slavoljub S. Lekić

Subjects
green revolution, Military Science, zelena revolucija, GMO, nauka, biotehnologija, poljoprivreda, TA1-2040, Engineering (General). Civil engineering (General), science, agriculture, biotechnology
Abstract

U radu se ukazuje na vezu između razvoja nauke i tehnologije u 19. i 20. stoleću, pre svega biologije i hemije, i nastanka zelene revolucije sredinom 20. stoleća i genske revolucije s kraja 20. stoleća. Genska i zelena revolucija dovele su do dubokih promena proizvodnje hrane i poljoprivredu integrisale u ekonomiju zasnovanu na visokim tehnologijama. / The article draws attention to the development of science and technology in 19th and 20th century, biology and chemistry in particular, and its relation with the green revolution of the middle of 20th century and the gene revolution of the end of 20th century. These two revolutions have resulted in significant changes in food production and integrated agriculture into high technology-based economy.

Published
2014

6. Challenges of new food

Author

Lekić, Slavoljub, Lekić, Slavoljub, Lekić, Slavoljub, and Lekić, Slavoljub

Abstract

The article draws attention to the development of science and technology in 19th and 20th century, biology and chemistry in particular, and its relation with the green revolution of the middle of 20th century and the gene revolution of the end of 20th century. These two revolutions have resulted in significant changes in food production and integrated agriculture into high technology-based economy., U radu se ukazuje na vezu između razvoja nauke i tehnologije u 19. i 20. stoleću, pre svega biologije i hemije, i nastanka zelene revolucije sredinom 20. stoleća i genske revolucije s kraja 20. stoleća. Genska i zelena revolucija dovele su do dubokih promena proizvodnje hrane i poljoprivredu integrisale u ekonomiju zasnovanu na visokim tehnologijama.

Published
2014

7. Merna metoda za analizu radarske površine rotirajućeg objekta / Radar cross section analysis of rotating objects

Author

Nikola Lekić

Subjects
Military Science, merenje radarske površine, visokorezoluciona radarska slika, TA1-2040, Engineering (General). Civil engineering (General), radar cross section measurements, high resolution radar imaging
Abstract

U radu je opisana merna metoda za analizu radarske površine rotirajućeg objekta. Predstavljeni su merni sistem i postupak obrade izmerenih rezultata. Dobijeni rezultat je radarska slika rotirajućeg objekta. / In the paper the radar cross section of rotating objects is analyzed. The measurement systems and data processing are described. The result is a cross range imaging of rotating objects.

Published
2003

8. Radar cross section analysis of rotating objects

Author

Nikola Lekić

Subjects
Physics, Radar cross-section, Data processing, Optics, business.industry, System of measurement, Range (statistics), business, Remote sensing
Abstract

In the paper the radar cross section of rotating objects is analyzed. The measurement systems and data processing are described. The result is a cross range imaging of rotating objects.

Published
2003
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10. Merna metoda za analizu radarske površine rotirajućeg objekta

Author

Lekić Nikola

Subjects
merenje radarske površine, visokorezoluciona radarska slika
Abstract

U radu je opisana merna metoda za analizu radarske površine rotirajućeg objekta. Predstavljeni su merni sistem i postupak obrade izmerenih rezultata. Dobijeni rezultat je radarska slika rotirajućeg objekta., In the paper the radar cross section of rotating objects is analyzed. The measurement systems and data processing are described. The result is a cross range imaging of rotating objects.

Published
2003

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