Zobrazeno 1 - 10
of 1 606
pro vyhledávání: '"digital beamforming"'
Autor:
Qingqing Lin, Jun Xu, Kai Chen, Long Wang, Wei Li, Zhiqiang Yu, Guangqi Yang, Jianyi Zhou, Zhe Chen, Jixin Chen, Xiaowei Zhu, Wei Hong
Publikováno v:
Engineering, Vol 41, Iss , Pp 35-50 (2024)
In this article, a single-board integrated millimeter-wave (mm-Wave) asymmetric full-digital beamforming (AFDBF) array is developed for beyond-fifth-generation (B5G) and sixth-generation (6G) communications. The proposed integrated array effectively
Externí odkaz:
https://doaj.org/article/356ce6c978084cc387f4c7b383b43dd0
Publikováno v:
Open Engineering, Vol 14, Iss 1, Pp 339-48 (2024)
Digital beamforming (DBF) has emerged as a pivotal technology for large-scale antenna arrays, offering precise beam steering control. This study presents an innovative approach to enhance millimeter wave transmission by integrating DBF with long shor
Externí odkaz:
https://doaj.org/article/0dff5d92ea4049258b4c80ae9aeedac9
Publikováno v:
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, Vol 22, Iss 2, Pp 32-41 (2024)
The review article summarizes the most significant results of research on the creation of antenna systems for mobile radio communications and radar, carried out at the Department of Information Radio Technologies of the Belarusian State University o
Externí odkaz:
https://doaj.org/article/e27cf426744247c2adff0d1ce1cd1377
Publikováno v:
IEEE Access, Vol 12, Pp 173540-173551 (2024)
Sea Surface Salinity (SSS) is a crucial parameter influencing ocean circulation and the global water cycle in global climate monitoring and oceanographic research. However, remote sensing of SSS is challenged by the impact of sea surface roughness on
Externí odkaz:
https://doaj.org/article/b65c27beb52b497a9ae9d04e07f5a057
Autor:
Angel Ornelas-Gutierrez, Cesar Vargas-Rosales, Rafaela Villalpando-Hernandez, Jaime Zuniga-Mejia
Publikováno v:
IEEE Access, Vol 12, Pp 85580-85600 (2024)
This paper proposes a novel smart communication scheme that can learn and adapt to different impairments and dynamics of vehicular wireless communications. The proposed approach aims to improve Vehicular Ad-hoc Network (VANET) Quality of Service (QoS
Externí odkaz:
https://doaj.org/article/ad35dcd37951418e880b87e94de600ae
Publikováno v:
Applied Sciences, Vol 14, Iss 21, p 9621 (2024)
With the increasing demand for accurate and robust positioning solutions, the use of GNSS antenna arrays has gained significant attention. However, their development and testing are frequently constrained by the inflexibility of traditional hardware
Externí odkaz:
https://doaj.org/article/6d96f6bceca24ccfb91fca931f2b32dd
Publikováno v:
Sensors, Vol 24, Iss 18, p 5978 (2024)
Azimuth resolution and swath width are two crucial parameters in spaceborne synthetic aperture radar (SAR) systems. However, it is difficult for conventional spaceborne SAR to simultaneously achieve high-resolution wide-swath (HRWS) due to the minimu
Externí odkaz:
https://doaj.org/article/6896bbbab36c461690a159b6db04317e
Publikováno v:
Remote Sensing, Vol 16, Iss 17, p 3322 (2024)
Digital array radar (DAR) can fully realize digitalization at both the transmitting and receiving ends. However, the development of freedom at the transmitting end is far from mature. So, the new concept of multi-dimensional waveform coding array has
Externí odkaz:
https://doaj.org/article/a0bd4cb237184ce29fe3814c71c56408
Autor:
Salman Liaquat, Muhammad Faizan, Jawwad Nasar Chattha, Faran Awais Butt, Nor Muzlifah Mahyuddin, Ijaz Haider Naqvi
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 5, Pp 102707- (2024)
The increasing use of Global Positioning System (GPS)-based autonomous drones in various civilian and military applications has raised concerns about malicious or unintentionally harmful activities that can be carried through them. It is necessary to
Externí odkaz:
https://doaj.org/article/0067280f69cf4a4b8094ab4a4814ce2a
Publikováno v:
Remote Sensing, Vol 16, Iss 17, p 3170 (2024)
This paper analyzes the advantages and the drawbacks of using the Synthetic Aperture Radar (SAR) azimuth multichannel technique known as Multi-Aperture Processing Scheme (MAPS), in a set of relevant application cases that are far from the canonical o
Externí odkaz:
https://doaj.org/article/2ecae97f0ee147109a44288fc8c0321f