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A space target real time simulation method

A space target, real-time simulation technology, applied in the field of aerospace simulation, can solve problems such as the inability to meet the speed

Active Publication Date: 2014-03-26
THE PLA INFORMATION ENG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a real-time simulation method for space objects, so as to solve the problem that the speed cannot be satisfied when using the OpenGL fixed-function pipeline processing method to simulate space objects in real time

Method used

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  • A space target real time simulation method
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  • A space target real time simulation method

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Embodiment Construction

[0039] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0040] As a software interface of graphics hardware, OpenGL is one of the most popular 3D graphics and model libraries at present. It can assist in the general simulation of space objects. However, for the real-time simulation of space objects, the use of OpenGL fixed-function pipelines to process data cannot meet the requirements. speed requirements. Graphics processing unit (GPU) can support T&L (Transform and Lighting) from the hardware, and has the characteristics of good parallelism and strong floating-point computing ability. Through graphics hardware programming (such as figure 1 Shown) can share most of the T&L calculations of the GPU, thereby greatly speeding up 3D rendering. With the further expansion of the application range of the GPU, some general computing tasks are transferred to the GPU through the coloring language, which p...

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Abstract

The invention relates to a space target real time simulation method, and belongs to the technical field of spaceflight simulation. According to the method, firstly, a visualized star sky background is constructed; then through the combination with orbital elements of space targets, and via a programmable processor, high speed resolving and drawing of positions, sizes and colors are completed; and finally, through the combination with viewpoint positions and user clipping information, generation of a space situation in a target direction is completed. According to the invention, characteristics of parallel processing and high precision floating point computing of a GPU is fully utilized; the acceleration effect is obvious; the real-time performance is good; and a reliable means is provided for real time simulation of the targets in space situation expression.

Description

technical field [0001] The invention relates to a real-time simulation method for a space target, belonging to the technical field of aerospace simulation. Background technique [0002] As the pace of human exploration of space is getting faster and faster, as an important means of visually displaying the distribution of space targets and the state of the space environment, the expression of space situation based on aerospace simulation technology has received more and more attention. Compared with the expression of the ground situation, the biggest feature of the expression of the space situation is that the scope of time and space to be described is very large, and the number of space targets contained in it is tens of thousands, which is a huge challenge for the real-time simulation of targets. challenge. [0003] At present, many units at home and abroad have carried out certain explorations on the expression of space situation, but more focus on the simulation of starr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T13/20
Inventor 蓝朝桢徐青施群山吕亮周杨李建胜邢帅
Owner THE PLA INFORMATION ENG UNIV
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