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Method for quickly obtaining three-dimensional isosurface of radar reflectivity data

A radar reflection and radar data technology, applied in the field of meteorological surveying and mapping, can solve problems such as difficulty in applying three-dimensional weather monitoring services, increase the amount of product data, and increase computing time, achieve good social and economic effects, shorten response time, and avoid redundant The effect of remaining data

Active Publication Date: 2018-12-18
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This method, on the one hand, consumes a large amount of computing overhead and increases computing time. On the other hand, it will introduce redundant data to a certain extent, increase the data volume of product data, and bring unnecessary obstacles to applications such as data transmission.
Therefore, the current calculation method of isosurface of radar reflectivity data is difficult to be applied to real-time 3D weather monitoring business

Method used

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  • Method for quickly obtaining three-dimensional isosurface of radar reflectivity data
  • Method for quickly obtaining three-dimensional isosurface of radar reflectivity data
  • Method for quickly obtaining three-dimensional isosurface of radar reflectivity data

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Embodiment 1

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] The method for rapidly obtaining the three-dimensional isosurface of radar reflectivity data provided by the present invention comprises the following steps:

[0035] 1. Normalization of radar 3D scanning data;

[0036] 2. Hexahedral grid construction of radar data points;

[0037] 3. Calculate the three-dimensional isosurface of radar reflectivity data; among them,

[0038] 1. When normalizing the radar three-dimensional scanning data, traverse each layer of the radar volume scanning data, perform the following normalization operation on the data of each layer, and normalize the data of each scanning layer to have 360 ​​scanning lines For the standard layer of data, the radar scanning data with corresponding data points in the upper and lower positions of each scanning layer is obtained:

[0039] a) Take any scan layer, according t...

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Abstract

The invention provides a method for quickly obtaining a three-dimensional isosurface of a radar reflectivity data, which comprises following steps: normalizing a radar 3D scan data; constructing a hexahedral mesh of radar data points; and calculating the three-dimensional isosurface of the radar reflectivity data. According to the method for quickly obtaining a three-dimensional isosurface of a radar reflectivity data, the data of radar products can be well applied to 3D scenes by quickly obtaining three-dimensional isosurface of radar reflectivity data, which can provide effective decision-making for the reduction and prevention of meteorological disasters, and has good social and economic benefits; meanwhile, the response time of relevant departments to disasters can be shortened throughthe ability to quickly acquire the shape of rainfall clouds.

Description

Technical field: [0001] The invention relates to a method for quickly acquiring a three-dimensional isosurface of radar reflectivity data, belonging to the technical field of meteorological surveying and mapping. Background technique: [0002] The three-dimensional isosurface of radar reflectivity data can express the physical characteristics of the strong echo area of ​​the rainfall cloud very intuitively, which is of great significance for the judgment of rainfall weather. At present, the acquisition of the 3D isosurface of the conventional radar reflectivity data is based on the calculation of the 3D regular grid. In this process, the arrangement of the three-dimensional regular grid is very different from the scanning method of the radar volume. Therefore, it is necessary to perform a large number of interpolation calculations through the existing radar detection data of each layer to obtain each three-dimensional regular small grid. The corresponding data value, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 路明月闵锦忠毕硕本王新昊毛远翔
Owner NANJING UNIV OF INFORMATION SCI & TECH
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