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Three-dimensional modeling method for airborne meteorological radar target

An airborne weather radar, three-dimensional modeling technology, applied in the direction of climate sustainability, radio wave reflection/re-radiation, utilization of re-radiation, etc. research analysis, etc.

Pending Publication Date: 2021-12-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the visualization of meteorological radar echo data, it is difficult to accurately research and analyze meteorological targets based on the two-dimensional echo intensity alone, which has certain limitations.
At present, there are few studies on 3D visualization of airborne weather radar data

Method used

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  • Three-dimensional modeling method for airborne meteorological radar target
  • Three-dimensional modeling method for airborne meteorological radar target
  • Three-dimensional modeling method for airborne meteorological radar target

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Embodiment Construction

[0047] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with examples.

[0048] The present invention will be further described in conjunction with the accompanying drawings. see figure 1, the present invention provides a kind of three-dimensional modeling method of airborne weather radar target, and implementation steps are as follows:

[0049] 1. Data input, load the initial data of meteorological target point cloud. The initial meteorological radar data is the meteorological target point cloud extracted after quality control such as ground clutter suppression, and the point cloud file is converted into a file format that conforms to the algorithm interface, and the file is analyzed and judged to obtain the meteorological target data point cloud, as shown in figure 2 shown.

[0050] 2. Outline point acquisition. Inp...

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Abstract

The invention designs a three-dimensional modeling method for an airborne meteorological radar target, which carries out three-dimensional surface modeling on three-dimensional point cloud data of a meteorological target detected by an airborne millimeter wave meteorological radar. The method comprises the steps of: firstly extracting outer contour points from three-dimensional point cloud of a meteorological target; performing normal vector estimation on the outer contour points to obtain the outer contour points of the meteorological target with normal vector information; and finally, carrying out three-dimensional surface modeling on the data of the meteorological target by using a surface reconstruction algorithm. The obtained three-dimensional surface model of the meteorological target is clear in result contour and obvious in surface detail feature, and can reflect the space appearance feature of the meteorological target.

Description

technical field [0001] The invention relates to the field of weather radar data processing, in particular to a three-dimensional modeling method of an airborne weather radar target. Background technique [0002] The main function of the airborne weather radar is to detect the weather conditions in front of the aircraft route and in the left and right fan-shaped areas, so as to help pilots choose safe routes to avoid various dangerous weather areas, which is of positive significance to ensure flight safety. However, the raw data of weather radars are cumbersome, and it is difficult to directly discover regularities from them. The use of advanced visualization technology can make the distribution and shape of meteorological targets intuitive at a certain moment, and convert meteorological data into easy-to-observe graphics or images, which can improve the pilot's ability to quickly study and judge complex weather conditions. [0003] The existing technology can recover and me...

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Application Information

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IPC IPC(8): G01S13/95
CPCG01S13/953Y02A90/10
Inventor 李明磊刘琴汪玲朱岱寅钱君
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS