A Method of Fast Acquisition of 3D 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: 2022-06-28
NANJING UNIV OF INFORMATION SCI & TECH
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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

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  • A Method of Fast Acquisition of 3D Isosurface of Radar Reflectivity Data
  • A Method of Fast Acquisition of 3D Isosurface of Radar Reflectivity Data
  • A Method of Fast Acquisition of 3D Isosurface of Radar Reflectivity Data

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Embodiment 1

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

[0034] The method for quickly obtaining the three-dimensional isosurface of radar reflectivity data provided by the present invention includes 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 3D scan data, traverse each layer of the radar volume scan data, perform the following normalization operation on the data of each layer, and normalize the data of each scan layer to have 360 ​​scan lines The standard layer of the data, the radar scan data with the upper and lower corresponding data points of each scanning layer is obtained:

[0039] a) Take any scan layer, according to the existing scan line data in the selected layer...

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Abstract

The invention provides a method for obtaining a three-dimensional isosurface of radar reflectivity data, comprising the following steps: normalization of radar three-dimensional scanning data; construction of a hexahedral grid of radar data points; calculation of a three-dimensional isosurface of radar reflectivity data. The present invention quickly acquires the three-dimensional isosurface of radar reflectivity data, so that radar product data can be well applied in three-dimensional scenes, and can better provide effective decision-making support for disaster reduction and prevention of meteorological disasters, and has good social and social Economic effect; at the same time, its ability to quickly obtain the shape of rainfall clouds can shorten the response time of relevant departments to disasters.

Description

Technical field: [0001] The invention relates to a method for rapidly 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 the radar reflectivity data can express the physical characteristics of the strong echo region of the rainfall cloud very intuitively, which is of great significance for the judgment of the rainy weather. At present, the acquisition of the 3D isosurface of the conventional radar reflectivity data is based on the 3D regular grid. In this process, the arrangement of the three-dimensional regular grid is very different from the radar volume scanning method. 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 then based on this, the...

Claims

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Application Information

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Patent Type & Authority Patents(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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