Autor: Serafin, A, - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Azimuth ambiguity suppression in SAR images using Doppler-sensitive signals
Autorzy:: Leśnik, Cz.
Serafin, P.
Kawalec, A.
Powiązania:: https://bibliotekanauki.pl/articles/200612.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Synthetic Aperture Radar (SAR)
SAR
azimuth ambiguity
Doppler-sensitive signals
dwuznaczność azymutu
sygnał Dopplera
Opis:: In the article the problem of the azimuth ambiguity in synthetic aperture radar (SAR) images and its genesis are presented. A method of suppressing the ambiguities by utilization of Doppler-sensitive signals is proposed, and the necessary modifications to the SAR synthesis algorithm are discussed. The SAR system parameters required for an optimal performance of the method are discussed and simulation results are presented.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 1; 221-227
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: An analysis of Chosen Image Formation Algorithms for Synthetic Aperture Radar with FMCW
Autorzy:: Okoń-Fąfara, M.
Serafin, P.
Kawalec, A.
Powiązania:: https://bibliotekanauki.pl/articles/227061.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: signal processing
synthetic aperture radar
time domain correlation
range-Doppler algorithm
range migration algorithm
Opis:: The modelling of FMCW SAR systems, due to long signal duration time, commonly used start-stop approximation for pulsed radars causes errors in the image. Continuous motion of the radar platform results in additional range-azimuth couplings and range walk term that should be considered in processing of signal from this type of radar. The paper presents an analysis of the following algorithms: Time Domain Correlation (TDC), Range Doppler Algorithm (RDA), and Range Migration Algorithm (RMA). The comparison of the algorithms is based on theoretical estimation of their computation complexity and the quality of images obtained on the basis of real signals of FMCW SAR systems.
Źródło:: International Journal of Electronics and Telecommunications; 2016, 62, 4; 323-328
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Synthetic Aperture Radar Using Emitters of Opportunity
Autorzy:: Serafin, P.
Kawalec, A.
Leśnik, C.
Pyć, M.
Pietrasiński, J.
Powiązania:: https://bibliotekanauki.pl/articles/226408.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Synthetic Aperture Radar (SAR)
passive SAR
Opis:: The capability of a radar imaging system to stay undetected while gathering data is one of the most desired for military reconnaissance systems. This is particularly difficult to achieve for synthetic aperture radar (SAR), that have to emit electromagnetic energy all the time during the operation and to move along a strictly defined route. Therefore the idea of a passive imaging system although encountering many constraints seems to be very interesting. The possibilities of a passive synthetic aperture radar system working with different types of emitters of opportunity are described in the paper. Impact of signal characteristics on image quality and geometry issues are discussed among others. Results of computer simulations of such a system implementing different imaging algorithms as well as the results of the experiment performed with passive SAR system model are presented.
Źródło:: International Journal of Electronics and Telecommunications; 2012, 58, 4; 357-362
2300-1933
Pojawia się w:: International Journal of Electronics and Telecommunications
Dostawca treści:: Biblioteka Nauki

Artykuł

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