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Tomasz Neumann
 

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The Development of Iteration Method for Optimization of Pair "Signal-filter"
1 National University “Odessa Maritime Academy”, Odessa, Ukraine
ABSTRACT: This paper is devoted to the improvement of the working methods of the "signal-filter" pair using an iterative procedure to maximize the signal-to-noise ratio, namely, to highlight the useful signals to provide information about the environment during the adaptive radar sensing in the conditions of obstacles. An algorithm for determining the optimal filter for suppressing undesired side lobes is proposed, which allows improving the process of detection and identification the target objects. Qualitative characteristics and the stages of space-time signal processing in the radar were justified under correlation conditions (ССF) between the received and expected signals. The using of probing radar signals, shortened in their duration were proposed in order to reduce the power of reflections from the underlying surface and increase the contrast of the radar image. A simulation test of the developed methodology was carried out in order to confirm the reliability of the proposed algebraic expressions using a mathematical model implemented in the Matlab programming environment, and a conclusion is drawn about the practical quality of the technical solutions developed on the basis of the iteration method.
REFERENCES
Sloka V. Questions of processing radar signals. Moscow: Soviet Radio, 1970.
Varakin L. E. Shaping and processing of complex signals in radar and radio communication systems. Moscow: VZEIS. 1967.
Cook C. E. and Bernfeld M. Radar signals. Iintroduction to theory and application. New York: Academic Press. 1967.
Varakin L. E. Systems of communication with noise-like signals. Moscow: Radio and Communications. 1985.
V.M. Koshevyy, M.B. Sverdlik. Joint Optimization of Signal and Filter in the Problems of Extraction of Signals from Interfering Reflections. Radio Engineering and Electronic Physics. Vol.20. N 10 pp.48-55.
V.M. Koshevyy, M.B Sverdlik. Synthesis of Signal – Filter pair under additional constraints. Radio Engineering and Electronics. vol 21. no.6. pp. 1227-1234. June 1976.
V.M, Koshevyy, D.O. Dolzhenko. The synthesis of periodic sequences with given correlation properties – Proc. of IEEE East-West Design & Test Symposium (EWDTS’11), 2011 - pp. 341-344.
Citation note:
Koshevyy V.M., Gorishna I.: The Development of Iteration Method for Optimization of Pair "Signal-filter". TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, Vol. 12, No. 3, doi:10.12716/1001.12.03.13, pp. 541-544, 2018
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Iryna Gorishna:

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