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Wyszukujesz frazę "RCS" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
The analysis of the different modeling in CST for predicting designs of a monostatic and bistatic RCS
Autorzy:
Bekimetov, Alisher Farxodovich
Yangibaeva, Madina
Powiązania:
https://bibliotekanauki.pl/articles/2863352.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:
antenna
monostatic RCS
bistatic RCS
reflection
decrease RCS
CST
antena
RCS
odbicie
spadek
Opis:
In this, research paper, we analyzed different radar cross-sections and models in Computer Simulation Technology (CST) software and tell in advance the RCS of the layer. In this variation exploration and representation of antenna layout in CST, we make a decision on various polarized plane wave angles. The research results may influence aircraft and any vehicle building, connecting with the incorporation of magnetic and electrical part power going return, therefore the polarization of plane waves, the use of different materials, aircraft, and any vehicle size. For this article, a microstrip antenna design with a reduced monostatic (RCS) with changing angle is described. Radar recognizes a reflected signal from this target due to microwave sensors' capacity to adequately light it with energy. The research used several both basic and sophisticated targets at an unaccompanied median rate of occurrence. Two categories of target forms, basic and complicated, made of iron material, give an appearance for assessing RCS in two distinct systems, Monostatic and Bistatic, with a range of angles.
Źródło:
Diagnostyka; 2023, 24, 3; art. no. 2023308
1641-6414
2449-5220
Pojawia się w:
Diagnostyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simplified model for calculation of clutters caused by wind turbines
Autorzy:
Dziewit, Z.
Bucki, B.
Powiązania:
https://bibliotekanauki.pl/articles/108443.pdf
Data publikacji:
2017
Wydawca:
Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
Tematy:
clutter model
weather radar
wind turbine
RCS
radar reflectivity
wind farm
planning
Opis:
metallic parts. Based on the assumption that only moving, metallic parts of a turbine cause echoes indelible by standard filtering used in radar signal preprocessing, a method of preliminary evaluation of such maximum potential clutters was developed. The method takes into account how great a part of a turbine is really illuminated by a radar beam and for this part calculates a RCS (Radar Cross Section) and its equivalent radar reflectivity. A very detailed description of the model is given in this article in order for it to be easy to implement in any calculation system. Discussion of the influence of the main simplifications assumed in this model, as well as a comparison of the theoretical results with example data in operational mode of radar work, are included in this article.
Źródło:
Meteorology Hydrology and Water Management. Research and Operational Applications; 2017, 5, 2; 3-12
2299-3835
2353-5652
Pojawia się w:
Meteorology Hydrology and Water Management. Research and Operational Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Introduction to coastal HF maritime surveillance radars
Autorzy:
Ilcev, Dimov Stojce
Powiązania:
https://bibliotekanauki.pl/articles/259808.pdf
Data publikacji:
2019
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
HFSWR
OTHR
JORN
WERA
ISR
AIS
LES
LPA
LRA
DOA
DDC
PCI
RCS
Opis:
This paper presents the main technical characteristics and working performances of coastal maritime surveillance radars, such as low-power High-Frequency Surface Wave Radars (HFSWR) and Over the Horizon Radars (OTHR). These radars have demonstrated to be a cost-effective long-range early-warning sensor for ship detection and tracking in coastal waters, sea channels and passages. In this work, multi-target tracking and data fusion techniques are applied to live-recorded data from a network of oceanographic HFSWR stations installed in Jindalee Operational Radar Network (JORN), Wellen Radar (WERA) in Ligurian Sea (Mediterranean Sea), CODAR Ocean Sebsorsin and in the German Bight (North Sea). The coastal Imaging Sciences Research (ISR) HFSWR system, Multi-static ISR HF Radar, Ship Classification using Multi-Frequency HF Radar, Coastal HF radar surveillance of pirate boats and Different projects of coastal HF radars for vessels detecting are described. Ship reports from the Automatic Identification System (AIS), recorded from both coastal and satellite Land Earth Stations (LES) are exploited as ground truth information and a methodology is applied to classify the fused tracks and to estimate system performances. Experimental results for all above solutions are presented and discussed, together with an outline for future integration and infrastructures.
Źródło:
Polish Maritime Research; 2019, 3; 153-162
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antenna for marine radar with supperdirectivity properties
Autorzy:
Koshevyy, V. M.
Shevchenko, A. A.
Powiązania:
https://bibliotekanauki.pl/articles/116049.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
marine radars
supperdirectivity properties
radar antenna
antenna
antenna directivity
radar cross section (RCS)
radar
reception antenna diagram
Opis:
The reception antenna diagram side lobe’s level suppression algorithm for marine radar by means of antenna array with only a few tuning elements of antenna array is considered. The others no tuning elements of array are choosing for obtain a given value of average side lobe level suppression and with given value of antenna directivity without using of numerical optimization procedures. Special algorithm of interaction of these no tuning elements for realizing Supperdirectivity properties is used. The structural diagram of array is presented. The efficiency of suggested design has been investigated.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 317-324
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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