Volume 10 Issue 6
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YIN Jiapeng, LI Jianbing, PANG Chen, et al. A radio frequency interference mitigation method for polarimetric Doppler weather radar[J]. Journal of Radars, 2021, 10(6): 905–918. doi: 10.12000/JR21102
Citation: YIN Jiapeng, LI Jianbing, PANG Chen, et al. A radio frequency interference mitigation method for polarimetric Doppler weather radar[J]. Journal of Radars, 2021, 10(6): 905–918. doi: 10.12000/JR21102
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A Radio Frequency Interference Mitigation Method for Polarimetric Doppler Weather Radars

DOI: 10.12000/JR21102

  • State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China

Funds:  The National Natural Science Foundation of China (61971429, 61771479), Postdoctoral International Exchange Program (48132), Science and Technology Innovation Program of Hunan Province (2020RC2042), The Scientific Research Program of the National University of Defense Technology (ZK21-25)
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  • Corresponding author: YIN Jiapeng, yinjiapeng@nudt.edu.cn
  • Received Date: 2021-07-22
  • Accepted Date: 2021-11-23
  • Rev Recd Date: 2021-11-22
    • Available Online: 2021-11-25
  • Publish Date: 2021-12-28
    Abstract
  • To mitigate Radio Frequency Interference (RFI) for polarimetric Doppler weather radars, this paper proposes to use spectral polarimetric filters. Polarimetric weather radars can be divided into two basic categories: Simultaneously Transmitting and Simultaneously Receiving (STSR) and Alternately Transmitting and Simultaneously Receiving (ATSR). First, the real RFI measurements from an operational C-band STSR weather radar help characterize the temporal, spectral and polarimetric features of RFI. Then, RFI is simulated in an X-band ATSR radar to quantify the performances of spectral polarimetric filters. Overall, spectral polarimetric filters can keep the precipitation and remove RFI in an ATSR radar. Finally, the data division method is put forward for STSR radars by mimicking the ATSR measurements. Good performance in RFI mitigation is also verified by using the same spectral polarimetric filters.

     

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