一种基于谱连续的极化-多普勒气象雷达信号重构方法

doi:10.12305/j.issn.1001-506X.2024.07.12

Abstract

Abstract:

Spectral polarization filtering technology is widely used in weather radar clutter suppression, but when ground clutter is mixed with precipitation, these methods will lose precipitation while filtering out clutter. To address this issue, a polarization-Doppler weather radar signal reconstruction method based on spectral continuity is proposed. This method utilizes the characteristic differences between precipitation and clutter on the range-Doppler map to achieve the preservation of precipitation and the filtering of clutter. Specifically, the spatial continuity of Doppler velocity and spectral width of precipitation is utilized to compensate for precipitation using polynomial fitting and Gaussian fitting method. The effectiveness of the proposed method is verified by the measured data of the operational weather radar.

Key words: polarization-Doppler weather radar, clutter suppression, signal recovery, spectral continuity

CLC Number:

TN95

Mengyun AN, Jiapeng YIN, Jiankai HUANG, Yongzhen LI, Xuesong WANG. A method for signal reconstruction of polarization-Doppler weather radar based on spectral continuity[J]. Systems Engineering and Electronics, 2024, 46(7): 2285-2293.

Figures/Tables 12

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References 30

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雷达	IDRA
雷达类型	极化多普勒
极化类型	STSR模式
中心频率/GHz	2.885
驻留脉冲数	64
扫描方式	VCP21
扫描角/(°)	方位角0~360

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A method for signal reconstruction of polarization-Doppler weather radar based on spectral continuity

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