Articles | Volume 15, issue 22
https://doi.org/10.5194/amt-15-6625-2022
https://doi.org/10.5194/amt-15-6625-2022
Research article
 | 
18 Nov 2022
Research article |  | 18 Nov 2022

Radio frequency interference detection and mitigation in the DWD C-band weather radar network

Maximilian Schaper, Michael Frech, David Michaelis, Cornelius Hald, and Benjamin Rohrdantz

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Cited articles

Besic, N., Figueras i Ventura, J., Grazioli, J., Gabella, M., Germann, U., and Berne, A.: Hydrometeor classification through statistical clustering of polarimetric radar measurements: a semi-supervised approach, Atmos. Meas. Tech., 9, 4425–4445, https://doi.org/10.5194/amt-9-4425-2016, 2016. a
Carroll, J. E., Sanders, F. H., Sole, R. L., and Sanders, G. A.: Case Study: Investigation of Interference into 5 GHz Weather Radars from Unlicensed National Information Infrastructure Devices, Part I, Tech. Rep. TR-11-473, NTIA, https://its.ntia.gov/umbraco/surface/download/publication?reportNumber=11-473.pdf (last access: 2 November 2022), 2010. a, b
Cho, J. Y. N.: A New Radio Frequency Interference Filter for Weather Radars, J. Atmos. Ocean. Tech., 34, 1393–1406, https://doi.org/10.1175/JTECH-D-17-0028.1, 2017. a, b, c
ECC: Report 192; The Current Status of DFS (Dynamic Frequency Selection) In the 5 GHz frequency range, Tech. rep., European Conference of Postal and Telecommunications Administrations (CEPT), Electronic Communications Committee (ECC), Denmark, https://docdb.cept.org/download/729 (last access: 2 November 2022), 2014. a, b
ETSI: Broadband Radio Access Networks (BRAN); 5 GHz high performance RLAN; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE directive, ETSI Rep. ETSI EN 301 893 V1.7.1 (2012-06), Tech. rep., ETSI, http://www.etsi.org/deliver/etsi_en/301800_301899/301893/01.07.01_60/en_301893v010701p.pdf (last access: 2 November 2022), 2012. a, b, c, d
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Short summary
C-band weather radar data are commonly compromised by radio frequency interference (RFI) from external sources. It is not possible to separate a superimposed interference signal from the radar data. Therefore, the best course of action is to shut down RFI sources as quickly as possible. An automated RFI detection algorithm has been developed. Since its implementation, persistent RFI sources are eliminated much more quickly, while the number of short-lived RFI sources keeps steadily increasing.
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