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Wind profile radar data quality credibility grading method, system and device

A wind profiler radar, data quality technology, applied in radio wave measurement systems, measurement devices, climate sustainability, etc., can solve problems such as lack of reliable reference value

Pending Publication Date: 2021-05-18
航天新气象科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the classification method of wind profile radar data quality reliability in the prior art is simple and does not have reliable reference value for data quality judgment, so a wind profile radar is provided The data quality reliability classification method, system and device divide the data reliability into multiple levels, and have better guidance and practicality for the use of wind profile data

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  • Wind profile radar data quality credibility grading method, system and device
  • Wind profile radar data quality credibility grading method, system and device
  • Wind profile radar data quality credibility grading method, system and device

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Embodiment 1

[0055] An embodiment of the present invention provides a wind profile radar data quality reliability classification method, such as figure 1 As shown, the method includes the following steps:

[0056] Step S1: Obtain the original spectral data output by the wind profiler radar.

[0057] In the embodiment of the present invention, the original spectrum data is the original spectrum data obtained by sampling and processing the wind field signal echo output by its signal processor when the wind profiler radar is working.

[0058] Step S2: Data processing is performed on the original spectral data to obtain velocity component data at different altitudes in the vertical direction, north-south direction, and east-west direction, as well as signal-to-noise ratio data representing the signal echo strength at each altitude layer.

[0059] In the embodiment of the present invention, data processing is performed on the original spectral data to obtain three velocity component data on ea...

Embodiment 2

[0093] An embodiment of the present invention provides a wind profile radar data quality reliability classification system, such as image 3 shown, including:

[0094] The raw data receiving module 1 is used to obtain the raw spectral data output by the wind profiler radar; this module executes the method described in step S1 in Embodiment 1, which will not be repeated here.

[0095] The original data processing module 2 is used for data processing on the original spectral data to obtain the velocity component data at different height layers in the vertical direction, the north-south direction and the east-west direction, and the signal echo intensity representing each height layer Signal-to-noise ratio data; this module executes the method described in step S2 in Embodiment 2, which will not be repeated here.

[0096] The data credibility classification preprocessing module 3 is used to use the same preprocessing method to process and screen out valid data for the velocity c...

Embodiment 3

[0101] An embodiment of the present invention provides a wind profile radar data quality reliability classification device, such as Figure 4 Shown, comprise: disk 6, PCI bus 7, shared memory 8, ethernet card 9 and display 10, wherein the wind profile radar data quality credibility grading system of embodiment 2 is stored on disk 6, when system runs, pass PCI The bus 7 is loaded into the shared memory 8, and is connected to the signal processor in the wind profiler radar system through the Ethernet card 9. When the wind profiler radar is working, its signal processor outputs the original signal obtained after sampling and processing the wind field signal echo. Spectrum data, wind profile radar data quality reliability grading system After the original spectrum data is processed by the credibility grading system, the obtained product data storage device is saved on the disk 6, and displayed on the display 10 in the form of graphics and lists superior.

[0102] Those skilled in...

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Abstract

The invention discloses a wind profile radar data quality credibility grading method, system and device. The method comprises the following steps: acquiring original spectrum data output by a wind profile radar; performing data processing on the original spectrum data to obtain velocity component data on different height layers in the vertical direction, the north-south direction and the east-west direction and signal-to-noise ratio data representing signal echo intensity on each height layer; respectively processing velocity components and signal-to-noise ratio data of different height layers in three directions by adopting the same preprocessing method, and screening out effective data; and according to a preset credibility grading criterion, dividing the credibility of the effective data of each height layer into a plurality of grades. According to the embodiment of the invention, the data credibility is divided into a plurality of grades based on the effective data ratio of different directions of each height layer of the wind profile radar data, and the method has better guidance and practicability for the use of the wind profile data.

Description

technical field [0001] The invention relates to the field of data quality reliability classification, in particular to a method, system and device for wind profile radar data quality reliability classification. Background technique [0002] The product data of wind profiler radar include horizontal wind speed, horizontal wind direction, vertical speed, horizontal wind reliability and vertical wind reliability. Due to frequent changes in the atmospheric wind field, the strength of echo signals at different heights has been fluctuating, and the intensity of atmospheric turbulence in different seasons also varies significantly. Interference signals such as ground clutter and instantaneous interference from flying objects will affect the The detection power and data processing accuracy of the wind profiler radar for the wind field, resulting in differences in the quality of the output product data, and the reliability of the data is different. When using these data, such as for...

Claims

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Application Information

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IPC IPC(8): G01S7/40G01S13/95
CPCG01S7/40G01S13/958Y02A90/10
Inventor 任迎新魏艳强孙健
Owner 航天新气象科技有限公司
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