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ISSN 1028-821X (Print)

Constructing technology of a meteor-burst communication system with code division multiplexing

heading: 
APPLIED RADIOPHYSICS
Holovan, OV, Kharchenko, VM
Organization: 

 

O. Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine
12, Proskura st., Kharkov, 61085, Ukraine
E-mail: holovan.helen@gmail.com 

State enterprise «Scientific research institute of radio electronic techniques»
3a, Dynamivska str., Kharkiv, 61023, Ukraine
https://doi.org/10.15407/rej2020.02.074
Language: russian
Abstract: 

 

Subject and Purpose. The paper presents a technology of constructing a promising meteor-burst communication system (MBCS) with code division multiplexing. It increases the bandwidth and improves the noise immunity and covert operation of the system.

Methods and Methodology. The proposed technology is based on software-defined radio (SDR) and provides MBCS adaptation to the environment conditions by means of software parameter control of the signals and their transfer protocols. It includes a technique of forming a large ensemble of signals with a direct sequence spread spectrum and improved auto- and cross-correlation properties, involves the optimal reception and matched digital filtering of large-base signals. In order to improve the noise immunity, the narrow-band interference rejection in the signal spectrum is proposed and is jointly software installed with the matched filtering. The detection and synchronization techniques effectively working in the non-Gaussian and non-stationary interference conditions gained consideration.

Results. A method of forming a large ensemble of direct sequence spread spectrum signals with improved auto- and cross-correlation properties has been software implemented using a pseudorandom permutation of codeword elements of a maximum-length register code. Designed with the use of fast Fourier transforms, algorithms of digital matched filtering and interference rejection as applied to large-base signals have been implemented via field-programmable gate arrays (FPGA). A method of detection and synchronization of large-base signals has been proposed and software implemented on the FPGA basis.

Conclusion. The proposed algorithms and their implementation methods make it possible to increase the bandwidth, improve noise immunity and enhance covert operation of the meteor-burst communication system with code division multiplexing.
Keywords: adaptation to speed and data transfer protocols, code division multiplexing, digital signal processing, direct sequence spread spectrum signals, meteor-burst communication, rejection of narrow-band interference, SDR-technology, synchronization

Manuscript submitted 02.10.2019
Radiofiz. elektron. 2020, 25(2): 74-81 
Full text (PDF)

References: 
  1. 1. McKinley, D., 1964. Methods of meteor radio astronomy. Translated from English and ed. by L.A. Katasev. Moscow: Mir Publ. (in Russian)
     
    2. Antipov, I.E., Koval', Y.A., Obelchenko, V.V., 2006. Development of the theory and radio meteor systems of communication and synchronization improvement. Kharkov: Collegium Publ. (in Russian).
     
    3. Kashcheev, B.L., Bondar', B.G., 1989. Meteor communication. Textbook. Kiev: UMK Publ. (in Russian).
     
    4. Freeman, R., 2007. Meteor Burst Communication. In: Radio System Design for Telecommunication. 3rd ed. Wiley-IEEE Press. Ch. 13, pp. 657-689.
     
    5. Kharchenko, V., Kharchenko, O., 2012. Cognitive special purpose radio systems. In: VI Sci. and Technic. Conf. VITI "Priority Directions for the Development of Telecommunication Systems and Special Purpose Networks". Kyiv, Ukraine, 25-26 Oct. Кyiv: VITI NTUU "KPI", pp. 40-44 (in Ukrainian).
     
    6. Sklar, B., 2016. Digital Communications: Fundamentals and Applications. Translated from English and ed. by A.V. Nazarenko. Moscow: Williams Publ. (in Russian).
     
    7. Kuznetsov, O.O., Kovalenko, A.M., Kharchenko, O.V. and Nosyk, O.M., 2007. Large ensembles of discrete signals with the improved correlation properties forming. Systems of Arms and Military Equipment, 1(9), pp. 94-98 (in Ukrainian).
     
    8. Kuznetsov, O.O., Kharchenko, V.M., Nosyk, O.M., Kolomiitsev, O.V., Nosyk, A.M., Kharchenko, O.V., 2012. The method of noise signals formation. Ukraine. Pat. 75328 (in Ukrainian).
     
    9. Stasev, Y.V., Kuznetsov, A.A., Nosik, A.M., Kachur L.N., 2008. Forming of large bands of discrete signals with the use of surplus codes. Scientific Works of Kharkiv National Air Force University, 2(17), pp. 102-110 (in Russian).
     
    10. Tuzov, G.I. ed., Sivov, V.A., Prytkov, V.I., Uryadnikov, Yu.F., Dergachev, Yu.A., Sulimanov, A.A., 1985. Interference immunity of radio systems with complex signals. Moscow: Radio i svyaz' Publ. (in Russian).
     
    11. Kharchenko, H.V., 2013. The model of meteor radio channel based on the solution of the diffraction problem of scattering on ionized trail: PhD thesis ed., Kharkiv: O.Ya. Usikov Institute for Radiophysics and Electronics of NASU (in Russian).
     
    12. ITU-R Recommendations P.843-1: Communication by meteor-burst propagation [pdf]. Available at: https://www.itu.int/dms_pubrec/itu-r/rec/p/R-REC-P.843-1-199708-I!!PDF-E...
     
    13. Kharchenko, V.N., 1988. Synthesis of an optimal receiver during fading and scattering of signals by delay. Radioengineering, 6, pp. 13-16 (in Russian).
     
    14. Lyons, R., 2006. Digital Signal Processing. 2nd ed. Translated from English and ed. by A.A. Britov. Moscow: LLC Binom-Press (in Russian).
     
    15. Harris, F.J., 1978. On the use of Windows for harmonic analysis with the discrete Fourier transform. Proc. IEEE, 66(1), pp. 51-83. DOI: https://doi.org/10.1109/PROC.1978.10837.
     
    16. Garmonov, A.B., Filatov, A.G., Savinkov, A.Yu., 2000. A method of searching for a broadband signal and device for its implementation. Russian Federation. Pat. 2159508 (in Russian).
     
    17. Kharchenko, V.N., Lavrut, A.A., Lavrut, T.V., 2006. A method of constructing a synchronization system for complex composite signals. Radioelectronic and computer systems, 5(17), pp. 193-197 (in Russian).
     
    18. Kharchenko, H.V., Tkalich, I.O., Vdovychenko, Y.I., 2009. Two-Criterial DSSS Synchronization Method Efficiency Research. In: Proc. 7th IEEE East-West Design and Test Symposium (EWDTS'09). Moscow, Russia, 18-21 Sept. 2009. Moscow: IEEE EWDTS.
     
    19. Golovan', O.V., Vdovichenko, Ye.І., Konoval'chik, O.S., Hachaturov, V.R., Harchenko, V.M., 2014. The method of finding a broadband signal. Ukraine. Pat. 91862 (in Ukrainian).
     
    20. Melville, S.W., Larsen, J.D., Letschert, R.Y., Goddard, W.O., 1989. The classification of meteor trail reflections by a rule-based system. Trans. SAIEE, 80(1), pp. 104-116.