A Radio Frequency Interference Mitigation Method for Polarimetric Doppler Weather Radars

被引：0

作者：

Yin J. ^{[1
]}

Li J. ^{[1
]}

Pang C. ^{[1
]}

Li Y. ^{[1
]}

Wang X. ^{[1
]}

机构：

[1] State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha

来源：

Journal of Radars | 2021年 / 10卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Data division; Polarimetric Doppler weather radar; Radio Frequency Interference (RFI); Spectral polarimetric filters;

D O I：

10.12000/JR21102

中图分类号：

学科分类号：

摘要：

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. © 2021 Institute of Electronics Chinese Academy of Sciences. All rights reserved.

引用

页码：905 / 918

页数：13