A Simulation Method of Dual-polarization Weather Radar Echo Signals

An echo signal and weather radar technology, which is applied in the field of dual-polarization weather radar echo signal simulation, can solve the problem that no echo signal is established, the dual-channel echo signal cannot be simulated, and the dual-polarization weather radar radar system performance evaluation cannot be applied. problems, to reduce production and design costs and improve test efficiency
CN113655455BActive Publication Date: 2022-04-08CHENGDU UNIV OF INFORMATION TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU UNIV OF INFORMATION TECH
Publication Date
2022-04-08

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Abstract

The invention relates to the technical field of radar simulation, in particular to a dual-polarization weather radar echo signal simulation method. The simulation method includes a dual-polarization weather radar echo signal simulation method and a dual-polarization radar volume-scan mode echo signal simulation method. The steps of the dual-polarization weather radar echo signal simulation method are as follows: obtain the echo signal power of the horizontal and vertical channels of the dual-polarization weather radar; carry out complex spectrum modeling of the echo signals of the horizontal and vertical channels, and establish the horizontal and vertical channels. Phase difference, intensity difference, and correlation of echo signals; generate time-domain I / Q echo signals based on two quadrature signals; analog receiver horizontal and vertical channel echo signal noise and channel gain. The dual-polarization weather radar echo signal simulation method establishes the relationship between the dual-polarization weather radar system performance parameters and the echo signal, and can simulate the influence of radar performance parameters on radar observations.
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Description

technical field

[0001] The invention relates to the technical field of radar simulation, in particular to a simulation method for dual-polarization weather radar echo signals. Background technique

[0002] Dual polarization weather radar is currently one of the most widely used and effective tools for monitoring and early warning of disastrous weather. The main advantage of dual-polarization weather radar is that in addition to obtaining the intensity and speed information of the rainfall process, it can also invert the microphysical structure of rainfall such as the form and phase state through the polarization information obtained by detection, so as to provide quantitative measurement of rainfall, disaster The early warning of severe weather provides a rich data base.

[0003] With the rapid development of meteorological services towards refinement and precision, higher requirements are put forward for the system performance, processing algorithm improvement and scanning...

Claims

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