Zobrazeno 1 - 10
of 1 101
pro vyhledávání: '"adaptive arrays"'
Autor:
Sandra Costanzo, Giovanni Buonanno
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 968-981 (2023)
Thinned arrays are a class of non-uniform arrays in which the magnitudes of the excitation coefficients usually take on binary values. They are obtained by removing or connecting to matched loads the elements of a filled array, such that the final co
Externí odkaz:
https://doaj.org/article/2713a369202d41d0a87072d6a05f1837
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 4, Pp 667-676 (2023)
The angle estimation capabilities of radar sensors are strictly linked to the antenna spacing between the array elements. A larger array aperture corresponds to a smaller beam width or in terms of the angle estimation a higher phase sensitivity. So-c
Externí odkaz:
https://doaj.org/article/2bb666c9f0514dd19dbc84f4c510833c
Autor:
Brad R. Jackson
Publikováno v:
IEEE Access, Vol 10, Pp 11909-11923 (2022)
This paper focuses on direction of arrival (DoA) estimation using adaptive arrays that consist of radiation pattern reconfigurable antenna (RPRA) elements for 2D direction finding (i.e., azimuth and elevation DoA estimation). In particular, uniform c
Externí odkaz:
https://doaj.org/article/d6728a76805c409e85c865bbce1ee433
Publikováno v:
IEEE Access, Vol 10, Pp 11669-11678 (2022)
Digital beamforming is the holy grail of antenna array technologies, however implementing digital beamforming into practical antenna arrays has been slow due to hardware complexity and cost. We propose a relatively inexpensive new approach to digital
Externí odkaz:
https://doaj.org/article/28e2da9986d54045a6aa2e2d7080c6bb
Akademický článek
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Autor:
Yasser Albagory
Publikováno v:
IEEE Access, Vol 9, Pp 43324-43338 (2021)
An efficient aeronautical telecommunication network (ATN) is proposed in this article based on adaptive multibeam antenna arrays and high-altitude platforms (HAPs). First, the network structure is demonstrated, and its geometry is analyzed based on a
Externí odkaz:
https://doaj.org/article/31b7ac2b75234187a40f910f3c9ace47
Publikováno v:
IEEE Access, Vol 9, Pp 89539-89553 (2021)
This paper proposes a novel blind adaptive array (BAA) interference suppression scheme incorporated with a time-domain symbol spreading (TISS). It can expand an operational region of BAA irrespective of input signal-to-interference power ratio (SIR)
Externí odkaz:
https://doaj.org/article/a0b13c1869334a2bb96cc6f124faeb89
Autor:
Amin H. Al Ka'bi
Publikováno v:
Archives of Electrical Engineering, Vol vol. 69, Iss No 4, Pp 857-872 (2020)
The polarized electromagnetic waves have significant impact on the performance of adaptive antenna arrays. In this paper we investigate the effect of polarized desired and undesired signals on the performance of electronically steered beam adaptive a
Externí odkaz:
https://doaj.org/article/b7dab4e547474583aa5bb4ce938270b7
Autor:
Jose P. Gonzalez-Coma, Luis Castedo
Publikováno v:
IEEE Access, Vol 8, Pp 144638-144653 (2020)
Hybrid digital-analog precoding is a cost effective solution for transmitting over the large bandwidths and huge antenna arrays available in the millimeter wave frequency bands. In this work we focus on the transmission of wideband signals over hybri
Externí odkaz:
https://doaj.org/article/6dfb8d982d144cf49e491f15b01602e0
Akademický článek
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