一种利用CUDA技术实现雷达余辉效果的方法

摘要

雷达PPI显示器余辉效果的好坏直接影响雷达模拟器的逼真程度,从而影响受训人员的训练效果.为实现高度逼真的雷达余辉效果,克服余辉模拟中坐标变换及余辉计算对运算速度需求较高的问题,利用新近出现的CUDA并行处理技术将在CPU上处理耗时较多的坐标变换及余辉计算搬移到GPU上来实现,克服了传统雷达余辉模拟方法中存在的不足.同时,传统余辉模拟方法中无法实现的高转速扫描余辉模拟,以及由于目标数据致使天线转速不稳等问题也得以解决,使用该方法可以实现导航等多型雷达的高转速扫描线余辉模拟.利用该方法研制的雷达训练模拟器已装备到某训练基地,用于雷达兵实际的教学、训练和考核,取得了良好的效果.%The fidelity of a radar simulator is directly influenced by the effect of radar afterglow, and so is the training effect as far as trainees are concerned. To solve the problem, it is necessary to a-chieve vivid radar afterglow and conquer the speed bottleneck of coordinate translating and afterglow attenuation calculating. By means of the newly emerging CUDA, the time-consuming coordinate translation and afterglow calculation can be implemented on the GPU. Thus, all the shortages can be overcome. Furthermore, the high speed scan line afterglow which cannot be fulfilled with the traditional simulating method can become possible so as to overcome the fluctuation of the scan line. The radar training simulate developed with this method provides to a certain training base for training and testing soldiers, showing a good effect.