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http://dx.doi.org/10.12673/jant.2022.26.5.350

Analysis of Interferences into a Space Weather Observation Receiver in 2.8GHz Band  

Kang, Young-Heung (School of Computer, Information & Communication Engineering, Kunsan National University)
Abstract
With the recent prediction of 'Cycle 25', the importance of space weather research increases. Accordingly, the World Radiocommunication Conference (WRC)-23 has adopted Agenda Item 9.1a) and carried out sharing researches between active/passive space weather observation systems and existing services. Therefore, in this paper, in order to increase the precision of space weather environment data and secure the frequency spectrum for observation systems, the direct interference effect from the weather radar in Gosan, Jeju on the space weather observation receiver in Hallim, Jeju, and the indirect interference on the observation receiver by diffraction and scattering from the radar target have been analyzed. As a result, it can be known that the radar direction, the propagation direction diffracted and scattered from the target, and the Rradar Cross Section (RCS) of the radar target, the reception area of the space weather observation antenna, and the antenna off-boresight are important parameters for the interference effect analysis.
Keywords
Cycle 25; Sharing; Space weather; Weather radar; WRC-23;
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  • Reference
1 WMO [Internet], Available: https://www.wmo-sat.info/product-access-guide/space-weather-product
2 Solar Cycle Science [Internet], Available: http://solarcyclescience.com/forecasts.html
3 KSWC [Internet], Available:http://spaceweather.rra.go.kr
4 ITU-R Preparatory Studies for WRC-23, [Internet] Available: https://www.itu.int/en/ITU-R/study-groups/rcpm/Pages/wrc-23-studies.aspx
5 Weather Radar Center [Internet], Available: https://radar.kma.go.kr/lecture/radar/network.do#content11
6 Recommendation ITU-R M.1174-4, Technical for measurement of unwanted emissions of radar systems, Oct. 2019
7 NASA Solar Cycle 25 [Internet], Available: https://blogs.nasa.gov/solarcycle25
8 Y. H. Kang, "Frequency sharing with FSS Earth stations for CBRS services,", Journal of Advanced Navigation Technology, Vol. 23, No. 6, pp. 507-514, Dec. 2019.   DOI
9 ITU-R Document 7C/337-E, PDRR RS.2456, Space weather sensor systems using radio spectrum, April 2022.
10 Recommendation ITU-R S.465-6, Reference radiation pattern for earth station antennas in the fixed-satellite service for use in coordination and interference assessment in the frequency range from 2 to 31GHz, Jan. 2010.
11 ITU-R Report RS.2456-0, Space weather sensor systems using radio spectrum, Jun. 2019.
12 B. R. Mahafza, Radar Signals and Processing using MATLAB, CRC Press, 2009.
13 ITU-R Recommendation M.1849-2, Technical and operational aspects of ground-based meteorological radars, Jan. 2019.