Autor: Koshevyy, V. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Synthesis of Binary Group-Complementary Sequences
Autorzy:: Koshevyy, V.M.
Powiązania:: https://bibliotekanauki.pl/articles/116221.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: ultra wideband (UWB)
binary sequences
binary group-complementary sequences
complementary sequences
reduction of the number sequences
set of sequences
synthetized sequences
radar signals
Opis:: Algorithm of binary {-1, 1} group-complementary sequences direct construction for any sequences length N is suggested. On the base of these sequences the signals with very wide frequency bandwidth may be constructed (up to the ultra wideband (UWB) signals). Synthesized sequences may found their application in radar and communication.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 545-548
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The Development of Iteration Method for Optimization of Pair "Signal-filter"
Autorzy:: Koshevyy, V.M.
Gorishna, I.
Powiązania:: https://bibliotekanauki.pl/articles/116953.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: iteration method for optimization
iteration method
method for optimization
Matlab
radar signals
signal-to-noise ratio
signal processing
pair signal-filter
Opis:: 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.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 3; 541-544
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Sets of waveform and mismatched filter pairs for clutter suppression in marine radar application
Autorzy:: Koshevyy, I.V.
Popova, V.
Powiązania:: https://bibliotekanauki.pl/articles/117576.pdf
Data publikacji:: 2017
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: marine radar
marine radar application
clutter suppression
filter optimization
Doppler shift of signal
electronic scanning antenna
radar signals
waveform
Opis:: Sets of waveform and mismatched filter pairs are used. On the contrary with Golays matched waveform filter pair the mismatched waveform filter pair does exist for all N (number pulses in waveform). Using corresponding shapes of filter good Doppler tolerance may be provided. This property together with a good range side-lobs level suppression makes it?s attractable for use in marine radar.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 505-510
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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