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摘 要：目前空间目标的可视化方式不能很好地满足海量空间目标实时态势表达的需求，考虑到各空间目标位置计算的独立性以及GPU并行处理的优势，将目标模拟中计算量较大的位置解算工作交由GPU并行处理，采用顶点着色器进行空间目标的位置解算，采用片元着色器进行空间目标显示效果的设置，最后采用实际数据和模拟数据相结合的方式验证了该文的方法性能和效果。实验结果表明：提出的空间目标可视化表达方法即使在目标接近50万颗时，可视化模拟消耗的时间也只有50 ms左右，完全能满足实时性的要求，同时片元着色器的设置也使空间目标可视化效果更加逼真。
关 键 词：空间态势感知；海量空间目标；可视化；图形处理器
Abstract: Current method of visualization cannot meet the needs of expression of the massive space objects real-time situation. To solve this problem, this paper proposes an improved method. Taking into account the independence of each space object on the position calculation and the advantages of GPU parallel processing, the position calculation is to be conducted by GPU parallel processing, vertex shaders are to be used for spatial location of the objects, the fragment shaders are to be used for space objects display settings, and the performance and effectiveness of this method are to be finally verified by actual data and analog data. The experimental results show that,by using the proposed visualization method of space objects, when the number of the objects is close to 500,000, simulation time is only about 50 milliseconds, thus it can well meet real-time requirements, while the fragment shaders settings also make the space objects visual effects more realistic.#br# Key words: space situational awareness; massive space objects; visualization; graphics processing unit
