Zobrazeno 1 - 10
of 2 224
pro vyhledávání: '"main lobe"'
Publikováno v:
Dianxin kexue, Vol 40, Pp 51-62 (2024)
Aiming at the problem that traditional anti-jamming schemes cannot choose suitable anti-jamming strategies according to different types of jamming forms, an adaptive anti-jamming scheme based on meta-surface antenna was proposed. According to the inc
Externí odkaz:
https://doaj.org/article/f135f19661d242d3b9b9f2198946a01e
Autor:
Omar Aldayel
Publikováno v:
IEEE Access, Vol 12, Pp 65919-65927 (2024)
We tackle the issue of designing a transmit beampattern for multiple-input multiple-output (MIMO) radar while considering its coexistence with wireless communication systems. Our goal is to design a beampattern that can steer the mainlobe and regulat
Externí odkaz:
https://doaj.org/article/30a445fc23ef49c6896a46336e24d0f9
Publikováno v:
Leida xuebao, Vol 12, Iss 6, Pp 1290-1304 (2023)
In modern electronic warfare, the jamming environment of radar is more complex than ever. The airborne jammer adapts its jamming method based on diverse raid missions and stages. Recently, the reinforcement learning–based radar anti-jamming method
Externí odkaz:
https://doaj.org/article/e3c6c93bd5c441f19f3ac33d723a26bc
Publikováno v:
Remote Sensing, Vol 16, Iss 13, p 2402 (2024)
In the increasingly complex electromagnetic environment, main lobe jamming significantly degrades the performance of a wideband radar system. To mitigate this issue, this paper developed a wideband main lobe jamming suppression algorithm based on a d
Externí odkaz:
https://doaj.org/article/5984645245984b3b8242dbe61409de3b
Publikováno v:
Remote Sensing, Vol 16, Iss 12, p 2100 (2024)
For two-dimensional forward-looking sonar imaging, high sidelobes significantly degrade the quality of sonar images. The cosine window function weighting method is often applied to suppress the sidelobe levels in the angular and range dimensions, at
Externí odkaz:
https://doaj.org/article/4d85f84c76b34aa485287cb95661bc45
Autor:
V. I. Mordachev, D. A. Tsyanenka
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 20, Iss 7, Pp 56-64 (2022)
Radio frequency electromagnetic radiation from base stations is the main source of electromagnetic background generated by mobile (cellular) communication systems in residential areas; its intensity makes a significant contribution to the level of el
Externí odkaz:
https://doaj.org/article/823433920e5d490b8ab6705c7696eb08
Publikováno v:
Journal of ICT Research and Applications, Vol 17, Iss 1 (2023)
Window methods that are frequently used in the design of finite impulse response filters are also applicable to antenna array designs. This paper explores the application of a Kaiser function in a power-weighted antenna array design, focusing on the
Externí odkaz:
https://doaj.org/article/a1fca5dd118146ceb2c7cedb7553f2d4
Publikováno v:
Remote Sensing, Vol 16, Iss 2, p 254 (2024)
High frequency surface wave radar (HFSWR) has been successfully developed for early warning, especially for vessel target detection. However, the system’s performance is consistently constrained by external environmental noise, particularly directi
Externí odkaz:
https://doaj.org/article/783b6a9c3b8949b99228788e2469e1be
Akademický článek
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Publikováno v:
Leida xuebao, Vol 11, Iss 3, Pp 399-407 (2022)
To solve the problem of the simultaneous suppression of main-lobe and side-lobe interferences, this study applies polarization information as input to the airborne bistatic radar and constructs an airborne bistatic polarization-sensitive array. The m
Externí odkaz:
https://doaj.org/article/be6180247af0421897f63aab384ad05d