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余辉仿真的逼真度和效率是制约雷达显示仿真的瓶颈,对于提升复杂战场环境下模拟训练效果具有重要意义。文中通过探究余辉产生机理,使用HLS(色相、饱和度、亮度)颜色空间变换技术,建立了余辉衰减算法。设计了基于DDraw技术的分层余辉处理模型,满足现代雷达一次和二次信息混合显示需求;以像素点为基本单元逐点处理余辉,保证了模型的通用性。采用Open MP技术对处理效率进行提升,相对于传统方法,获得了高效、通用、逼真流畅的余辉仿真效果。
The fidelity and efficiency of afterglow simulation is the bottleneck of the simulation of radar display, which is of great significance for improving the simulation training effect in complex battlefield environment. In this paper, afterglow generation mechanism is explored, and the afterglow decay algorithm is established by using HLS (Hue, Saturation, Brightness) color space transform technology. The layered persistence processing model based on DDraw technology is designed to meet the needs of the hybrid display of primary and secondary information of modern radars. The pixel persistence as the basic unit is processed point by point to ensure the universality of the model. Using Open MP technology to improve the processing efficiency, compared with the traditional method, obtained efficient, universal, lifelike and smooth afterglow simulation.