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Intelligent multi-frequency microwave rainfall monitoring method

A technology of rainfall monitoring and microwave, which is applied in the field of intelligent multi-frequency microwave rainfall monitoring, can solve the problems of high inversion accuracy, poor inversion accuracy consistency, and poor inversion accuracy, achieving high inversion accuracy, low construction cost, and good coverage wide effect

Active Publication Date: 2020-12-08
江苏微之润智能技术有限公司
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AI Technical Summary

Problems solved by technology

Relying only on the sample data of a single frequency band for modeling training, the inversion accuracy consistency under different rain intensity levels is poor
The inversion accuracy is high under some rain intensity levels, and the inversion accuracy is poor under other rain intensity levels

Method used

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  • Intelligent multi-frequency microwave rainfall monitoring method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] An intelligent multi-frequency microwave rainfall monitoring method comprises the following steps,

[0027] S1, for the six intensity levels of rainfall, select the experimental sample frequency bands according to the frequency band interval of αGHz, and establish a sample database;

[0028] S2, analyze the microwave rain attenuation of each frequency band under each rainfall intensity, select the microwave frequency band fn with strong correlation, n represents the rainfall level, and is any integer in 1-6;

[0029] S3, for each rainfall intensity level, in the frequency interval of (fn-α, fn+α), perform multiple iterations to obtain the optimal frequency band f'n, thereby establishing an independent inversion model M1 under the optimal monitoring frequency band ;

[0030] S4, carry out fusion modeling of each optimal monitoring frequency band fn under multip...

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Abstract

The invention discloses an intelligent multi-frequency microwave rainfall monitoring method which is wide in coverage, high in monitoring precision of each rainfall grade and low in construction cost,and adopts multi-frequency microwave equipment which can send and receive a plurality of microwave frequency bands; a plurality of frequency bands and independent model training of each rain intensity level are adopted to invert an optimal monitoring frequency band under different rain intensity levels; after rain intensity intelligent pre-identification, the system selects an optimal monitoringfrequency band corresponding to the rain intensity level to perform rainfall data inversion; the multi-frequency microwave system is more flexible to apply under various rain intensities and higher ininversion precision.

Description

technical field [0001] The invention relates to the fields of water conservancy and hydrological monitoring and meteorological monitoring, in particular to an intelligent multi-frequency microwave rainfall monitoring method. Background technique [0002] Rainfall monitoring is of great significance to weather broadcasting, agricultural production, and prevention of natural disasters. Currently commonly used monitoring methods include: automatic observation station, rain radar, satellite remote sensing and single-frequency microwave rainfall monitoring system. [0003] The automatic rainfall observation station is an observation device that collects, processes, stores and transmits rainfall information according to the requirements of monitoring rainfall information. The construction of an automatic observation station first requires the site selection of the observation station, and then the construction of the observation station. After it is put into operation, periodic m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/95G01S7/41G01W1/10G06F30/27G06N3/08G06N3/04
CPCG01S13/951G01S13/958G01S7/418G01W1/10G06F30/27G06N3/08G06N3/045Y02A90/10
Inventor 陈健邹明忠吴浩楠
Owner 江苏微之润智能技术有限公司
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