Oroshchuk I., Suchkov A.

IGOR M. OROSHCHUK, Doctor of Technical Sciences, Professor, Department of Electronics and Communication, School of Engineering, Far Eastern Federal University, Vladivostok. 8 Sukhanova St., Vladivostok, Russia, 690950, e-mail: Oroshchuk@yandex.ru 
ANDREW N. SUCHKOV, Candidate of Technical Sciences, Associate Professor, Department of Radioelectronic Equipment, The Pacific Higher Naval College Named after S.O. Makarov, Vladivostok, 6, Kamsky St., Vladivostok, Russia, 690062, e-mail: Suchkov-Andrey-1981@yandex.ru 

The possible application of nonlinear digital antenna arrays in decametre range

The paper deals with the spatially-correlation dependences of radio signals and radio interferences in decametre range that the authors obtained in the course of real experiments. Basing on the statistical processing of the experiments, the authors have obtained a generalised approximating correlation formula reflecting the general nature of changes in the spatial correlation properties of the decametre radio range and they developed a stochastic simulation model reflecting the general nature of changes in spatially-correlation properties of radio interferences in decametre range. The results of the authors’ experiments and the simulation modelling of nonlinear signal processing in digital arrays based on the approximation formulas of radio signals and the radio interferences stochastic model make it possible to evaluate the potential of the new processing method to be used in radio communication equipment of decametre range.

Key words: antenna array, nonlinear processing, spatial correlation, radio signals, radio noise, pilot study.

REFERENCES

1. Bykovskij L.M., Egorov V.I., Oleneva T.S.  Systems and means-horizon radar. Abstract J. on materials of Domestic and Foreign Press, 1955–1991. 1991(19):1-87. (in Russ.). [Bykovskij L.M., Egorov V.I., Oleneva T.S. Sistemy i sredstva zagorizontnoj radiolokacii // Referativnyj zhurnal po materialam otechestvennoj i zarubezhnoj pechati za 1955-1991. 1991.Vyp. 19. S. 1-87].

2. Grigor'ev L.N. Digital beamforming in phased antenna arrays. M., Radiotehnika 2010, 144 p. (in Russ.). [Grigor'ev L.N.  Cifrovoe formirovanie  diagrammy  napravlennosti v fazirovannyh antennyh reshetkah. M.: Radiotehnika, 2010. 144 S.

3. Dolgih V.N., Oroshсhuk I.M., Borodin A.E. Search research of principles of construction of discrete antenna systems with randomly distributed elements for advanced radio equipment shortwave: research report “Shalanda” (concluded.). Vladivostok, IAPU DVO RAN; TOVMI, 2007. 114 pp. (in Russ.). [Dolgih V.N., Oroshсhuk I.M., Borodin A.E. Poiskovye issledovanija principov postroenija diskretnyh antennyh sistem so sluchajno raspolozhennymi jelementami dlja perspektivnyh radiotehnicheskih sredstv korotkovolnovogo diapazona: otchet o NIR «Shalanda» (zakljuch.). Vladivostok: IAPU DVO RAN; TOVMI, 2007. 114 S.].

4. Dolgikh V.N., Oroshchuk I.M., Prishchepa M.N. Probabilistic Characteristics of Signal Detection by a Spatial Correlation Filter. Acoustic magazine. 2007;2:226-232. [Dolgih V.N., Oroshhuk I.M., Prishhepa M.V. Verojatnostnye harakteristiki obnaruzhenija signalov korreljacionnym prostranstvennym fil'trom // Akusticheskij zhurnal. M. 2007. № 2. S. 226-232] (in Russ.). = Dolgikh V.N., Oroshchuk I.M., Prishchepa M.N. Probabilistic Characteristics of Signal Detection by a Spatial Correlation Filter. Acoustical Physics. 2007(53);2:190-196. New York (in Engl.). 

5. Dolgih V.N., Oroshсhuk I.M., Suchkov A.N. Spatial-correlation properties of the signals and interference decameter range, ed. V.S. Kolmogorova. Vladivostok, Filial VUNC VMF “VMA im. N.G. Kuznecova”, 2013, 112 р. (in Russ.). [Dolgih V.N., Oroshhuk I.M., Suchkov A.N. Prostranstvenno-korreljacionnye svojstva signalov i pomeh dekametrovogo diapazona / V.N. Dolgih, I.M. Oroshсhuk, A.N. Suchkov; pod red. V.S. Kolmogorova. Vladivostok: Filial VUNC VMF “VMA im. N.G. Kuznecova”, 2013. 112 S.

6. Zjuko A.G. Immunity and efficiency of communication systems. M., Svjaz', 1972, 360 p. (in Russ.). [Zjuko A.G. Pomehoustojchivost' i jeffektivnost' sistem svjazi. M.: Svjaz', 1972. 360 S.

7. Oroshchuk I.M., Dolgikh V.N., Suchkov A.N. Spatial correlation method probabilistic characteristics of signal acquisition in decameter range. Journal of Radio Electronics. 2013;12. URL: http://jre. cplire.ru/jre/dec13/5/text.html (date of access: 21.05.15). (in Russ.). [Oroshсhuk I.M., Dolgih V.N., Suchkov A.N. Verojatnostnye harakteristiki prostranstvenno-korreljacionnogo metoda obnaruzhenija signalov v dekametrovom diapazone // Zhurnal radiojelektroniki: jelektronnyj zhurnal. 2013.  № 12. Rezhim dostupa: http://jre. cplire.ru/jre/dec13/5/ text.html (date of access: 21.05.15)].

8. Oroshchuk I.M., Dolgikh V.N., Suchkov A.N. The measuring device for estimating spatially and frequency-correlation properties of signals and disturbances in decameter range. Proceedings of Volgograd State Technical Univ. 2013(8);23:95-99. (in Russ.). [Oroshhuk I.M., Dolgih V.N., Suchkov A.N. Izmeritel'noe ustrojstvo dlja otcenki  prostranstvenno- i chastotno-korreljacionnyh svojstv signalov i pomeh dekametrovogo diapazona // Izvestija Volgogradskogo gosudarstvennogo tehnicheskogo universiteta. 2013. Vyp. 8. № 23 (126). S. 95-99].

9. Oroshсhuk I.M., Marus D.N. Evaluation of spatial-correlation properties of signals in the decameter range: research report “Ionosfera”. Vladivostok, VUNC VMF “VMA” (filial, Vladivostok), 2011. 97 p. (in Russ.). [Oroshсhuk I.M., Marus D.N. Ocenka prostranstvenno-korreljacionnyh svojstv signalov v dekametrovom diapazone: otchet o NIR “Ionosfera”. Vladivostok: VUNC VMF “VMA” (filial, g. Vladivostok), 2011. 
97 S.

10. Oroshсhuk I.M., Suchkov A.N., Vasilenko A.M. Monitoring of sea surface correlation spatial filter decameter range. Mining Informational and Analytical Bulletin (scientific and technical journal). Individual articles (special edition). 2014;12:77-89 (in Russ.). [Oroshсhuk I.M., Suchkov A.N., Vasilenko A.M. Monitoring sostojanija morskoj poverhnosti korreljacionnym prostranstvennym fil'trom dekametrovogo diapazona // Gornyj informacionno-analiticheskij bjulleten' (nauchno-tehnicheskij zhurnal). Otdel'nye stat'i (spetsial'nyj vypusk). 2014. № 12. S. 77-89.].

11. Oroshchuk I.M., Suchkov A.N., Vasilenko A.M. Opportunities netvigilance digital antenna arrays with spatial-correlation method of signal processing. The 17th International Conference “Digital signal processing” Section 4 “Signal processing in radio engineering system”. March 25–27, 2015, Moscow, Russia, p. 385-389. (in Russ.) [Oroshchuk I.M., Suchkov A.N., Vasilenko A.M. Vozmozhnosti nejekvidistantnyh cifrovyh antennyh reshetok s prostranstvenno-korreljacionnym metodom obrabotki signalov // 17-ja Mezhdunarodnaja konferencija “Cifrovaja obrabotka signalov i ee primenenie”. Sekcija 4 “Obrabotka signalov v radiotehnicheskih sistemah”. 25–27 marta 2015. Moskva, Rossijskoe NTORJeS im. A.S. Popova, 2015. Str. 385 – 389.].

12. Oroshchuk I.M., Suchkov A.N. Spatial correlation method of signal processing in decameter range. The 16th International Conference “Digital signal processing”. Section 4 “Signal processing in radio engineering system, March 26–28, 2014, Moscow, Russia. p. 302-305. (in Russ.). [Oroshchuk I.M., Suchkov A.N. Prostranstvenno-korreljacionnyj metod obrabotki signalov dekametrovogo diapazona // 16-ja Mezhdunarodnaja konferencija «Cifrovaja obrabotka signalov i ee primenenie». Sekcija 4 «Obrabotka signalov v radiotehnicheskih sistemah». 26–28 marta 2014. M.: Rossijskoe NTORJeS im. A.S. Popova, 2014. S. 302-305.].

13. Problems of antenna technology, ed. L.D. Bahrah, D.I. Voskresenskiy. М., Radio and communications, 1989. 368 p. (in Russ.). [Problemy antennoj tehniki / pod red. L.D. Bahraha, D.I. Voskresenskogo. M.: Radio i svjaz', 1989. 368 S.

14. Sljusar V.I. Digital beamforming in communication systems: The future is born today. Electronics: science, technology, business. 2001;1:6-12. (in Russ.). [Sljusar V.I. Cifrovoe formirovanie lucha v sistemah svjazi: Budushhee rozhdaetsja segodnja // Elektronika: nauka, tehnologija, biznes. 2001. 
№ 1. S. 6–12].

15. Weib M. Digital Antennas. Multistatic Surveillance and Reconnaissance: Sensor, Signals and Data Fusion Educational Notes RTO-EN-SET-133. 2009, Paper 5, p. 5-29. Neuilly-sur-Seine, France: RTO. Available from: www.rto.nato.int.abstracts.aps (date of access: 21.05.15)