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Real-time space-based infrared visual simulation method

A visual simulation and infrared technology, applied in the field of aerospace image processing, can solve the problem that the application scene is difficult to meet the needs of space-based applications

Active Publication Date: 2017-04-19
CHINA ACAD OF LAUNCH VEHICLE TECH
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Problems solved by technology

The huge difference in application scenarios makes it difficult for existing technical means to meet the needs of space-based applications
For example, after expanding from the local plane terrain to the global spherical terrain, the objects in the simulation scene are no longer at the same moment, and the ambient temperature changes dynamically with the longitude, latitude, and simulation time; the traditional atmospheric radiation and transmission model applicable to the plane does not No longer applicable, it is necessary to customize and develop an atmospheric radiation and transmission model suitable for spherical surfaces

Method used

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[0029] Below in conjunction with accompanying drawing and specific example the present invention is described in further detail:

[0030] The invention provides a real-time space-based infrared visual simulation method, such as figure 1 As shown, this method obtains the target radiation intensity data, the earth background radiation intensity data and the atmospheric path radiation intensity data through simulation calculation, and then uses the satellite sensor simulation model to map the above three radiation intensity data into infrared imaging data, which can simulate the early warning satellite in real time. The infrared imaging process of the detection system for launch vehicles, missiles and other aircraft.

[0031] The implementation process of the present invention will be described below by taking the process of infrared imaging of the carrier rocket by the space-based early warning satellite detection system as an example.

[0032] (1) Calculation process of atmosp...

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Abstract

The invention provides a real-time space-based infrared visual simulation method acquiring target radiation intensity data, earth background radiation intensity data and atmosphere path radiation intensity data via simulation calculation, and then utilizing a satellite sensor simulation model to map the above three radiation intensity data to infrared imaging data. An imaging process of an early-warning satellite sensing system can be simulated in real time; gray level images corresponding to infrared radiation of a target and a scene can be output; and the method can facilitate evaluation of infrared target features of carrier rockets, missiles and aircrafts and performance of satellites detection.

Description

technical field [0001] The invention relates to the technical field of aerospace image processing, in particular to a real-time space-based infrared scene simulation method. Background technique [0002] Infrared scene simulation technology is mostly used in the analysis of infrared radiation characteristics of sensitive targets, and in the performance evaluation of infrared detection systems. Most of its existing application scenarios are infrared seekers or reconnaissance equipment in the atmosphere, local terrain, and simulation work in the atmospheric transmission band, while the scenarios for space-based applications are earth observation outside the atmosphere, global terrain, and simulation work in the absorption band. band of satellite sensors. The huge difference in application scenarios makes it difficult for existing technical means to meet the needs of space-based applications. For example, after expanding from the local plane terrain to the global spherical te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 张恒刘佳王晓路张冶崔毅楠何漫王彦静郭会章贾倩潘健宁学
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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