Zobrazeno 1 - 10
of 7 654
pro vyhledávání: '"c-band"'
Publikováno v:
Yuanzineng kexue jishu, Vol 58, Iss S1, Pp 167-173 (2024)
In order to meet the power source requirements of C-band linear accelerators for industrial applications, a C-band high power klystron operating at a frequency of 5 712 MHz was developed. For this klystron, the development objective of the output pow
Externí odkaz:
https://doaj.org/article/6259d7a5653d4b2bb6c6fcdd54bd66f5
Autor:
Chenqi Huang, Lingxiao Wang, Lin Zhao, Shibo Liu, Defu Zou, Guangyue Liu, Guojie Hu, Erji Du, Yao Xiao, Chong Wang, Yuxin Zhang, Yuanwei Wang, Yu Zhang, Zhibin Li
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 135, Iss , Pp 104302- (2024)
The boreal forest surrounds the Arctic region and is the most extensive ecosystem on Earth; one-third of its soil is influenced by permafrost and accompanying wetlands. Interferometric Synthetic Aperture Radar (InSAR) technology has been widely utili
Externí odkaz:
https://doaj.org/article/75078e088d3f4b3a9022bba36e6f5c0b
Publikováno v:
Gaoyuan qixiang, Vol 43, Iss 3, Pp 749-761 (2024)
Using the basic data from four C-band Doppler weather radars and ground observation data in Shanxi province， the statistical analysis of the V-shaped gap features observed in Shanxi from 2009 to 2017 was conducted.The correspondence between V-shape
Externí odkaz:
https://doaj.org/article/75a2dd9f6c5047deb2a2c392e6efadaa
Publikováno v:
International Journal of Applied Earth Observations and Geoinformation, Vol 132, Iss , Pp 103994- (2024)
Precise and prompt information on forest disturbances in the tropics is critical to support law enforcement and protect tropical forests. In 2023, medium resolution ALOS-2 ScanSAR data (∼100 m spatial resolution) was made available for Southeast As
Externí odkaz:
https://doaj.org/article/981f9afeb62b4abda9ad164562bbaa70
Autor:
Raja Inoubli, Daniel Enrique Constantino-Recillas, Alejandro Monsivais-Huertero, Lilia Bennaceur Farah, Imed Riadh Farah
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 17412-17429 (2024)
The agricultural productivity and the optimized use of water resources rely on the soil moisture (SM) retrieval to achieve some of the sustainable development goals, such as ensuring food security and monitoring climate change. One of the main aspect
Externí odkaz:
https://doaj.org/article/75d88769cbcb4b5d88ce2988256c50d4
Autor:
Ivan Arias Hernandez, V. Chandrasekar
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 16692-16709 (2024)
This study presents dual polarization spectral analysis over updraft environments in thunderstorms. The composition and interaction of particle in updrafts environments are analyzed using the expansion that the spectral polarimetric provides in radar
Externí odkaz:
https://doaj.org/article/9537ba5227214e3d91cf9d15794d00f2
Autor:
Sangin Qahtan Wali, Aduwati Sali, Darko Suka, Sam Aerts, Mohammed Alkuraysi, Lu Li, Alyani Ismail, Fazirulhisyam Hashim, Yasser A. Alsaidosh, Victor P. Gil Jimenez, Manfred Ruttner, Anwar Faizd Osman
Publikováno v:
IEEE Access, Vol 12, Pp 130639-130653 (2024)
This study evaluates the maximum theoretical exposure to radiofrequency (RF) electromag- netic fields (EMFs) from a Fifth-generation (5G) New Radio (NR) base station (BS) while using four commonly used mobile applications: YouTube for video streaming
Externí odkaz:
https://doaj.org/article/c8b17983e8b045c9a103e91ba75f40f5
Autor:
Mohammad Zaid, Purnima Kumari, Ahtisham Pampori, Mohammad Sajid Nazir, Umakant Goyal, Meena Mishra, Yogesh Singh Chauhan
Publikováno v:
IEEE Access, Vol 12, Pp 53475-53484 (2024)
This study introduces a new design for a low noise amplifier (LNA) consisting of two stages taking advantage of the inherent lossy properties of the input matching components. By doing this, the design balances the minimum noise figure (NF) and stabi
Externí odkaz:
https://doaj.org/article/6019274196c441698eb6cda5a5392b9b
Autor:
Adnane Chakir, Pierre-Louis Frison, Ludovic Villard, Nadia Ouaadi, Pascal Fanise, Khabba Said, Valerie Le Dantec, Rafi Zoubair, Jamal Ezzahar, Benedicte Fruneau, Jean-Paul Rudant, Jarlan Lionel
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 3635-3647 (2024)
This article aimed to monitor vegetation using C-band radar data at a subdaily time step. To this end, radar measurements using tower-mounted antennas with a 15-min time step, along with physiology-related information (sapflow and micrometric dendrom
Externí odkaz:
https://doaj.org/article/9e7bd6e991a440f588b072e8ecdbb336
Autor:
Luca Schirru, Francesco Gaudiomonte
Publikováno v:
Sensors, Vol 24, Iss 19, p 6481 (2024)
Radio frequency interference (RFI) analysis is crucial for ensuring the proper functioning of a radio telescope and the quality of astronomical observations, as human-generated interference can compromise scientific data collection. The aim of this s
Externí odkaz:
https://doaj.org/article/17f3d5c5d399456aa86dd47a78300dff