Visualization Method Implemention Of A Three-dimensional Data Of Space Radiation Environment Based On CUDA

With the rapid spread of human activities in space and the demand for spacemissions, thus the impact of the space environment on spacecraft chip and core devicesalso increasingly valued by humans. Decades of aerospace activities, discovered in theorbit of the spacecraft, the outer atmosphere of the Earth’s space environment can’t beignored. Therefore, the study of space environment will become a craze and focus ofscientific research, as the original study terrestrial environment.China’s satellite in orbit damaged frequently, the root cause of the space radiationenvironment caused by space radiation effects. The grim situation of the frequent failureof our satellite, solved the space radiation environment in order to change the status ofthe response, accurate quantitative description of the outbreak events on early warningissues and space radiation environment, it is imperative for the simulation of the spaceradiation environment. Visual simulation and its effect spacecraft run by the near-Earthspace environment simulation, researchers not only helps to further understanding of thespace environment, spacecraft tasks of the spacecraft’s selection to play a certainreference role, in order to avoid was a more serious threat to the spacecraft in the spaceenvironment. Simulation can unlock the mysterious veil of the universe which is thatpeople learn more about Earth outer space, in order to effectively use it, with our humanspace environment.This article is for the issue on appeal to the IGRF model of the Earth’s magneticfield and the Earth radiation belts AE8/AP8model for the main object of study in thetheory on the basis of in-depth analysis the IGRF model and AE8/AP8model, focusingon research and achieve the near-Earth space radiation environment elements and theireffects, three-dimensional model of mathematical analysis and visualization ofsimulation.The main content of this article:1. First, the space environment simple introduction to the concepts, the IGRF2005the model and AE8/AP8model geometry modeling analysis.2. Numerical simulation technology to achieve a simulation of the effects of the near-Earth space radiation environment for the spacecraft space radiation effects ofcumulative flux simulation, data based on the theory of numerical calculation andsatellite detection data;3. Systematic exposition of the basic theory and method of data field visualization,and a suitable visual processes in this article of the near-Earth space radiationenvironment field through research data visualization reference model;4. Based on the mathematical model theory of the Earth’s magnetic field theIGRF2005and Earth radiation belts AE8/AP8analyze data using the correspondingvisualization technology means the main contours of the basic magnetic field of theEarth and visualization of three-dimensional flow line drawn, and section of the Earth’sradiation belt, a two-dimensional plane and three-dimensional panoramic visualrendering, and analysis shows the simulation results. And using virtual trackballachieves rotation interactive of the visualization results.5. Solve this problem due to the great amount of data of the Earth’s radiation beltspace, direct volume rendering technique able to get desired results in Fig theirvisualization, but its rendering speed is very slow, research and CUDA-based lightprojection accelerated optimization algorithm to draw on the body of the Earth’sradiation belts, and get the desired results, and the use of multiple sets of datavisualization research and found some problems, and after the theoretical analysis andvisualization analysis, to solve the problem. But still some problems left over from leftto follow-up work to complete.