基于FPGA的机载全姿态指示仪设计研究

摘要

机载电子综合显示系统对图形算法的准确性、快速性要求较高,通用的图形处理系统往往不适用;针对机载图形中最耗时的全姿态指示仪,提出一种基于FPGA的硬件生成系统;该系统预测地平线各像素行的像素点数量,使用水平线扫描线进行填充,并在填充的过程中适时的计算轮廓和地平线上坐标;减少了计算量,简化了帧存总线的设计,通过硬件加速提高了图形的生成速度,有效地实现了全姿态指示仪的图形生成.%Aircraft electronic integrative display system needs veracious and fast graphics algorithm and current algorithms usually do not fit it. Attitude indicator in aircraft cockpit spends much time and a new system based on FPGA is presented. The system can get the coordinate of a scanning beam point of the horizon and use level line to fill. The horizon and profile are counted while filling. The graphics of attitude indicator is built with less memory with simply bus and calculation.