Temat: antenna signals - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The use of numerical methods for the analysis of phase phenomena in multi-element antennas
Autorzy:: Lis, W.
Moszyński, M.
Powiązania:: https://bibliotekanauki.pl/articles/331910.pdf
Data publikacji:: 2003
Wydawca:: Polskie Towarzystwo Akustyczne
Tematy:: numerical methods
antenna signals
acoustics
Opis:: The article describes an analysis of the effects of mutual impedance on the phase of multi-element antenna signals. The calculations were made using a substitute model of a Mason ultrasonic transducer. The effects of self and mutual impedance on the phase of multielement antenna signals were considered.
Źródło:: Hydroacoustics; 2003, 6; 215-220
1642-1817
Pojawia się w:: Hydroacoustics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Antenna Arrays Focused on Broadband Signals
Autorzy:: Vedenkin, D. A.
Sedelnikov, Y. E.
Nasybullin, A. R.
Powiązania:: https://bibliotekanauki.pl/articles/958050.pdf
Data publikacji:: 2016
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: antenna array
broadband antenna
broadband signals
focusing on the broadband signals
Opis:: Broadband and ultra-wideband signals are increasingly used in modern radio systems. Traditional performance of evaluation antennas operating with narrowband signals are not always adequately reflect the characteristics of broadband antennas, at least in view of the frequency dependence of the antenna pattern. Accounting for broadband signals the antennas becomes important in the low-frequency range of the spectrum. Systems using these types of signals may include control of the atmosphere and measuring its frequency-selective properties in the range meter and decameter wavelengths. Possibility of spatial selection based on focusing of broadband signals in this case promises to implement a number of additional features. Therefore, it is important to evaluate the properties of antennas based on the spectral content of the signal, as well as taking into account the ways of its processing in the receiving equipment. Consideration features of functioning the antenna array, focused on broadband signal is devoted to this article.
Źródło:: Journal of Telecommunications and Information Technology; 2016, 2; 95-102
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
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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