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Construction method for near space atmosphere virtual environment resource

A near-space and virtual environment technology, applied in meteorology, using multiple variables to indicate weather conditions, measuring devices, etc., can solve problems such as unclear factors and degrees of influence and loss of aircraft

Active Publication Date: 2017-01-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the development and utilization of adjacent space is still in the initial stage, and the influencing factors and degree of influence of aircraft flying in this space are not yet clear. immeasurable loss

Method used

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  • Construction method for near space atmosphere virtual environment resource
  • Construction method for near space atmosphere virtual environment resource
  • Construction method for near space atmosphere virtual environment resource

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0049] Specific implementation mode one: combine Figure 5 Describe this embodiment;

[0050] A method for constructing a near-space atmospheric virtual environment resource includes the following steps:

[0051] Step 1. Obtain the historical data of atmospheric environment resources in the adjacent space, including longitude, latitude, height data and corresponding temperature data;

[0052] Step 2, processing the abnormal data in the longitude, latitude, height and temperature data; thereby obtaining a two-dimensional matrix without abnormal data, which is convenient for subsequent data processing operations such as normalization and averaging;

[0053] Step 3. Normalize the height data acquired by each event: For the height corresponding to each event, first round the height data in each event; The same altitude value is regarded as the altitude layer of the same layer. If there are multiple temperature data in one altitude layer, the average value of multiple temperature...

specific Embodiment approach 2

[0067] Specific implementation mode two: combination Figure 6 Describe this embodiment;

[0068] A method for constructing a near-space atmospheric virtual environment resource includes the following steps:

[0069] Step 1. Obtain the historical data of atmospheric environment resources in the adjacent space, including longitude, latitude, height data and corresponding temperature data;

[0070] Step 2, processing the abnormal data in the longitude, latitude, height and temperature data; thereby obtaining a two-dimensional matrix without abnormal data, which is convenient for subsequent data processing operations such as normalization and averaging;

[0071] Step 3. Normalize the height data acquired by each event: For the height corresponding to each event, first round the height data in each event; The same altitude value is regarded as the altitude layer of the same layer. If there are multiple temperature data in one altitude layer, the average value of multiple tempera...

specific Embodiment approach 3

[0100] The specific process of processing the abnormal data in the longitude, latitude, height and temperature data described in step 2 of this embodiment is as follows:

[0101] For the longitude, latitude, altitude and temperature data in each event, the original average resolution of the data is obtained, and then the abnormal data is eliminated, and the previous data of the abnormal data is used as the basis, and the resolution is added on this basis to obtain .

[0102] Take the abnormal value processing of temperature data as an example: the abnormal maximum value is generally distributed in the last two data of the temperature data in each event. Taking the last 10 temperature data of the temperature data as an example, the original average resolution is obtained according to the temperature data in advance. 率,温度数据的后10个温度数据:225.5196838、225.0498047、224.7708435、224.5986786、224.3938904、224.054245、223.5292511、222.8206482、221.9805908、221.1124725、220.2646179、219.3830872、218.37...

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Abstract

The present invention provides a construction method of near space atmosphere virtual environment resource, and relates to a construction method of atmosphere virtual environment resource. The objective of the invention is to solve the problem that the near space atmosphere virtual environment resource is vacant in the domestic virtual test system. The method comprises: obtaining the historical data of the near space atmosphere virtual environment resource, and processing the abnormal data; performing normalization of the height data obtained by each event; performing coordinate transformation and obtaining the space range of each event; constructing two-dimensional array of each height layer aiming at each resource data and performing two-dimensional smooth processing; and finally, constructing three-dimensional array of each resource data, obtaining the cubic grid of the three-dimensional array of the temperature, the density and the pressure, and performing data format conversion to complete the construction of the near space atmosphere virtual environment resource in accordance with an SEDRIS standard. The construction method for near space atmosphere virtual environment resource is suitable for the construction field of the near space atmosphere virtual environment resource in the visual test.

Description

technical field [0001] The invention relates to a method for constructing atmospheric virtual environment resources. Background technique [0002] Virtual natural environment resources are an important part of supporting virtual experiments, and their perfection and credibility directly affect the fidelity of virtual experiments. Atmospheric environment is an important part of the comprehensive natural environment, and the construction of atmospheric virtual environment resources in adjacent space is of great significance for improving the virtual test system. [0003] Adjacent space refers to the airspace 20 to 100 kilometers above the ground, including the stratosphere, mesosphere and low thermosphere. As an important part of comprehensive natural environment data and the basis of comprehensive natural environment database development, the generation and improvement of atmospheric environmental resources are very important. At present, the development and utilization of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/02
CPCG01W1/02
Inventor 许永辉孙丽程博成行马豪凡邓锦宇
Owner HARBIN INST OF TECH