Zobrazeno 1 - 10 of 132 pro vyhledávání: '"Radio propagation beacon"'
1
High-Frequency Near Vertical Incidence Skywave Propagation: Findings associated with the 5 MHz Experiment
Autor: Marcus C. Walden
Publikováno v: IEEE Antennas and Propagation Magazine. 58:16-28
This article collates the findings from the 5 MHz Experiment, a U.K.-based amateur radio project involving a network of beacon transmitters and monitoring stations operating at 5.290 MHz. An analysis of the calibrated received signal-power measuremen
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2912474e335cd99858da034229125d23
https://doi.org/10.1109/map.2016.2609798
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2
Typical Ka band Satellite Beacon Receiver Design for Propagation Experimentation
Autor: Reza Bahri, Gholamreza Moradi, Mohamadreza Keshavarzi, Hossein Yarmohammadi
Publikováno v: Journal of Advances in Computer Engineering and Technology, Vol 1, Iss 2, Pp 23-28 (2015)
This paper presents the design and simulation of a typical Ka band satellite beacon receiver for propagation experimentation. Using satellite beacon signal as a reference signal in satellite wave propagation study, is one of the most important method
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::429f954a08be460acb46959adcd670b7
http://jacet.srbiau.ac.ir/article_6709_3dbc16f554dbe4a2454e83efb15e6103.pdf
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3
Measurements of Field Strength and HD Radio Reception Quality at VHF
Autor: P. V. G. Castellanos, M. P. C. Almeida, L.A.R. da Silva Mello, J. A. C. Braz, F. F. Lima, Rodrigo Pereira David, Cassio G. Rego
Publikováno v: IEEE Antennas and Wireless Propagation Letters. 14:201-204
This letter presents the results of field trials conducted in Brazil to evaluate the performance of digital broadcasting systems. Analog FM and digital HD radio signals broadcasting the same content were simultaneously transmitted in the urban and su
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b4388ac3b2a165c7df892edfb1aee13c
https://doi.org/10.1109/lawp.2014.2359001
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4
Demo: Radio Rate Transformer
Autor: Jiejun James Kong
Publikováno v: CarSys@MobiCom
RadioRateTransformer is a broadband wireless routing system that can implement ~10Mbps high-speed ad-hoc networks for mobile vehicles at 10km/20km/30km long distance per link. It legally leverages VHF/UHF radio's large transmission power allowed by F
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2b47d0674daee0e5be6baaff81915355
https://doi.org/10.1145/3131944.3131955
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5
Developments in high power longwave radio: A brief history
Autor: Peder Hansen
Publikováno v: 2016 IEEE International Symposium on Antennas and Propagation (APSURSI).
The early history of radio is really about longwave (VLF/LF). This paper presents a brief summary of the development of high-power longwave radio transmission from the beginning of radio to the present. The early experimenters discovered that reliabl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::174b2c8b02271bbf414c7e8bd76e16e1
https://doi.org/10.1109/aps.2016.7696214
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6
What is radio for?
Autor: Paddy Scannell
Publikováno v: Radio Journal:International Studies in Broadcast & Audio Media. 7:89-95
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9c65709238a2b1387113b0be4219f2b8
https://doi.org/10.1386/rajo.7.1.89/4
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7
Development of a Multiband VHF Antenna for Low-Frequency Transient Radio Telescope
Autor: Geri Kibe Gopir, Mohammad Tariqul Islam, Baharudin Yatim, Radial Anwar, Norbahiah Misran
Publikováno v: Journal of Electromagnetic Waves and Applications. 23:1843-1854
Low-frequency radio astronomy has become a fascinating research area in the field of astronomy, including on its instrumentation development. In this paper, a multiband VHF antenna for low-frequency transient radio telescope is developed. The multiba
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e004a45729935e55a36d964264379c87
https://doi.org/10.1163/156939309789932403
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8
A Construction of the Real Time Monitoring System of the Solar Radio Disturbance: II. 2.8GHz Radio Receiver and Radio Environment
Autor: Dae-Young Lee, Joh-Na Yoon, Sa-Ra Park, Yonggi Kim
Publikováno v: Journal of Astronomy and Space Sciences, Vol 25, Iss 1, Pp 61-70 (2008)
As the second step of the real time monitoring system of the solar radio disturbance, we constructed a 2.8 GHz radio receiver with 500 MHz bandwith. Using the control and observing system (Yoon et al. 2004), we observed the Sun, and found some freque
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d83334321727ebbef3e86b2bdce3a50d
http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2008/v25n1/OJOOBS_2008_v25n1_61.pdf
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10
Propagation measurements campaign in Athens with ALPHASAT at Ka-band using Software Defined Radio technologies
Autor: Nikolaos K. Lyras, Apostolos Z. Papafragkakis, Athanasios D. Panagopoulos, Charilaos I. Kourogiorgas
Publikováno v: 2015 International Conference on Electromagnetics in Advanced Applications (ICEAA).
The present work illustrates the basic concepts and challenges involved in the implementation of a Software Defined Radio (SDR) receiver targeting ALPHASAT's Ka-band beacon; the receiver measures the beacon's power which can later be correlated with
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e0f76f91e0944680093338041889cdb
https://doi.org/10.1109/iceaa.2015.7297194
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