Print Email Facebook Twitter Radio Frequency Interference Characterization and Mitigation for Polarimetric Weather Radar Title Radio Frequency Interference Characterization and Mitigation for Polarimetric Weather Radar: A Study Case Author Yin, Jiapeng (National University of Defense Technology) Hoogeboom, P. (TU Delft Atmospheric Remote Sensing) Unal, C.M.H. (TU Delft Atmospheric Remote Sensing) Russchenberg, H.W.J. (TU Delft Geoscience and Remote Sensing) Department Geoscience and Remote Sensing Date 2021 Abstract Radio frequency interference (RFI) has become a growing concern for weather radar, distorting radar variable estimation. By simultaneously or alternately transmitting the horizontal and vertical polarized waves, polarimetric weather radar can be referred to as SHV radar or AHV radar. The SHV radar can mimic the AHV radar by discarding either H- or V-channel measurements, which leads to an alternating scheme. In this research, the real RFI measurements from an operational C-band SHV radar are used to characterize the RFI temporal, spectral, and polarimetric features. Then, the RFI is simulated to quantify the performance of the object-orientated spectral polarimetric (OBSPol) filter in RFI mitigation. The OBSPol filter has been previously proposed by the authors to mitigate the narrowband clutter (both stationary and moving) and noise. This work extends the application of the filter to remove the RFI for SHV radar. Specifically, by taking advantage of the low copolar correlation of the RFI signal measured in AHV radar, the RFI mitigation method is designed, and its effectiveness is proven by qualitative and quantitative analyses. In particular, in the case of RFI overlapped to weather echoes in the time domain, the RFI can be mitigated, also when the duty cycle of the RFI is high. However, this work does not provide a full evaluation of the RFI mitigation performance on all radar data outputs but a proof of concept to show the effectiveness of the proposed filter for RFI mitigation. Subject Doppler effectDoppler radarMeteorological radarMeteorologyPolarimetric weather radarRadarRadar polarimetryradio frequency interference (RFI)range-Doppler continuityspectral polarimetric filter.Time-domain analysis To reference this document use: http://resolver.tudelft.nl/uuid:0d43ee8e-a961-4d8c-9ca0-60a3eddb4034 DOI https://doi.org/10.1109/TGRS.2021.3093565 Embargo date 2022-01-12 ISSN 0196-2892 Source IEEE Transactions on Geoscience and Remote Sensing, 60 (2022) Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2021 Jiapeng Yin, P. Hoogeboom, C.M.H. Unal, H.W.J. Russchenberg Files PDF Radio_Frequency_Interfere ... ase_1_.pdf 7.17 MB Close viewer /islandora/object/uuid:0d43ee8e-a961-4d8c-9ca0-60a3eddb4034/datastream/OBJ/view