Zobrazeno 1 - 10
of 1 821
pro vyhledávání: '"BPSK"'
Publikováno v:
Alexandria Engineering Journal, Vol 105, Iss , Pp 230-236 (2024)
Many decoders of error-correcting codes use the Log-Likelihood Ratio (LLR) as an input, which involves the probability density function (pdf) of the noise. In impulsive noise, the pdf of the noise is not accessible in closed form and is only availabl
Externí odkaz:
https://doaj.org/article/f5cc15bfc72d46f2afda18a3193d396b
Publikováno v:
IEEE Access, Vol 12, Pp 51130-51137 (2024)
This paper presents the construction and measurement of a phased array BPSK transmitter system operating at 246 GHz with tested data rates of up to 32 Gbit s-1. The system is built using custom monolithic microwave integrated circuit (MMIC) and a nov
Externí odkaz:
https://doaj.org/article/09c4cce38ac74d33b50792c058a0c7bf
Publikováno v:
Физика волновых процессов и радиотехнические системы, Vol 26, Iss 4, Pp 60-67 (2024)
Background. There is a growing need for active sensory diagnostics of partial HF channels to provide frequency support to quasi-zenith HF radio links in varying signal propagation conditions. Enhancing the efficiency of active sensor algorithms, part
Externí odkaz:
https://doaj.org/article/15e5f3cbd2a2493382ad5244fab2b510
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 1, Pp 101-110 (2024)
Wireless communication and sensing applications seek higher frequencies to enable higher data rates or more precise localization using a wider modulation bandwidth. Particularly, 6G and autonomous driving research projects focus on the D-band. With h
Externí odkaz:
https://doaj.org/article/bd3d5762b21646d3baf2cda2a8fb92a6
Autor:
Chuanfu Chen, Ilya Pavlov, Artem Padokhin, Yury Yasyukevich, Vladislav Demyanov, Ekaterina Danilchuk, Artem Vesnin
Publikováno v:
Sensors, Vol 24, Iss 19, p 6472 (2024)
For decades, GNSS code measurements were much noisier than phase ones, limiting their applicability to ionospheric total electron content (TEC) studies. Ultra-wideband AltBOC signals changed the situation. This study revisits the Galileo E5 and BeiDo
Externí odkaz:
https://doaj.org/article/44de4e415136479e883fc5aee857b174
Autor:
Kabaou Mohamed Ouwais, Zoghlami Nesrine, Hafidhi Intidhar, Hamouda Hassen, Ben Abdennour Anouar
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 3, Pp 102473- (2024)
The objective of this article is to analyze the behavior of channels in mobile radio transmission chains and propose a solution for reducing propagation attenuation and ensuring Quality of Service (QoS) in telecommunications. As network coverage and
Externí odkaz:
https://doaj.org/article/11659b165b284ed2838fcf0f1be43220
Publikováno v:
Jurnal Konstitusi, Vol 20, Iss 3, Pp 406-422 (2023)
The arbitration decision by BPSK, can be filed with objections in accordance with Law 8/1999 and annulment under Law 30/1999. These two actions raise questions related to the arbitration process to resolve consumer disputes, consumer protection, and
Externí odkaz:
https://doaj.org/article/3971ec2fcbc149df96d02bc7e49dac06
Publikováno v:
NOVASINERGIA, Vol 6, Iss 2, Pp 129-139 (2023)
In Ecuador, Internet access has been considered an essentialservice since 2015; however, only 60% of its population has access. 70% of Ecuadorians in urban areas have Internet access, whereas only 38% in rural areas do. In this sense, this work aimed
Externí odkaz:
https://doaj.org/article/2bffaf0ec058499ea8b447518c8abbb7
Publikováno v:
Jurnal Elkomika, Vol 12, Iss 1 (2024)
ABSTRAK Jaringan 5G telah menjadi penanda penting dalam evolusi teknologi nirkabel yang menawarkan kecepatan dan kinerja yang luar biasa untuk memenuhi kebutuhan konektivitas yang semakin meningkat. Dalam jaringan 5G, pengkodean kanal merupakan elem
Externí odkaz:
https://doaj.org/article/de861d618fc74241a30955f61c7de12c
Publikováno v:
IEEE Journal of Microwaves, Vol 3, Iss 2, Pp 815-826 (2023)
Radar systems got very popular in sensing applications in the last two decades besides the traditional military sector. Nowadays, many applications favor multiple-input multiple-output (MIMO) radar over phased-array radar. Here, time-division multipl
Externí odkaz:
https://doaj.org/article/24edec54a144406fb99be382911049d3