Zobrazeno 1 - 10
of 180
pro vyhledávání: '"Side Lobe Level (SLL)"'
Publikováno v:
BioMedInformatics, Vol 3, Iss 4, Pp 1197-1215 (2023)
The advancement in technology and the availability of specialized digital signal processing chips have made digital filter design and implementation more feasible in a variety of fields, including biomedical engineering. This paper makes two key cont
Externí odkaz:
https://doaj.org/article/ce5e06eeebaf4020bc4fd284edaa2966
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 3, Pp 102582- (2024)
A non-uniform aperture distribution slotted waveguide antenna is presented. The slotted waveguide antenna array is chosen for its ease for aperture distribution control and the flexibility of gain adjustment. Multiple aperture distribution functions,
Externí odkaz:
https://doaj.org/article/ffc7de5bf3fb440a833aa84d96ede919
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 9, Pp 7233-7264 (2022)
In this paper, a new hybrid beamforming approach based on the 2D convolution and genetic algorithm (GA), denoted as C/GA, is proposed for side lobe level (SLL) reduction and size miniaturization of planar antenna arrays (PAA). The convolution algorit
Externí odkaz:
https://doaj.org/article/9497e993e2d84508a944b66e9c6ebdd7
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 8, Pp 5903-5917 (2022)
In this paper, a new optimized quadrant pyramid antenna array (O-QPAA) structure is proposed for back lobe minimization of planar antenna arrays (PAA). Based on the PAA size, it is thought to be formed of a number of concentric co-planar squared ante
Externí odkaz:
https://doaj.org/article/be7eff20118e467aa77fdf87aa24b469
Akademický článek
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Publikováno v:
Sensors, Vol 23, Iss 14, p 6557 (2023)
In this paper, two sector beam scanning approaches (BSAs) based on element position perturbations (EPPs) in the azimuth plane are introduced. In EPP-BSA, the elements’ excitations are kept constant and the elements’ positions in the direction nor
Externí odkaz:
https://doaj.org/article/25a232e921064e65864905598a3b3b58
Publikováno v:
IEEE Access, Vol 9, Pp 50949-50960 (2021)
In this paper, new virtual antenna array (VAA) based synthesis techniques are introduced for side lobe level (SLL) reduction, beam thinning, and number of elements minimization for elliptical cylindrical antenna arrays (ECAA) of radar systems. Thereb
Externí odkaz:
https://doaj.org/article/8698b5af63374b3fb85937b8b1f55396
Publikováno v:
IEEE Access, Vol 9, Pp 90306-90318 (2021)
The number of elements reduction in different antenna array configurations such as linear, circular, rectangular, planar, and non-planar is of main concern for several research groups. This minimizes the complexity of the feeding network in static an
Externí odkaz:
https://doaj.org/article/5923c8446d604a90b198b4cd2f555ba1
Akademický článek
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Publikováno v:
Advanced Electromagnetics, Vol 10, Iss 2 (2021)
Side lobe level reduction is one of the most critical research topics in antenna arrays beamforming as it mitigates the interfering and jamming signals. In this paper, a hybrid combination between the Genetic algorithm (GA) optimization technique and
Externí odkaz:
https://doaj.org/article/5455ef99d6894fa6af009cd280ada300