基于DSP与FPGA的全姿态指引仪图形显示系统设计

针对机载电子全姿态指引仪显示图形信息的特征及其变化特点,在系统初始化时将图形内容分为背景层、填充层和动态字符层三层,运算过程中只改变根据参数变化的填充层和字符层;将图形运算过程分为图形轮廓生成和硬件区域填充,分别由DSP软件标记区域边界,FPGA根据标记硬件完成区域填充;同时图形运算处理算法在所设计的DSP＋FPGA的硬件平台上进行了实现与验证,结果表明,这种图形处理方法减轻了传统处理方法中主处理器的运算负担,很大程度上提高了系统的实时性。

Research on Graphics Information Processing and Displaying Technology of EADI

According to the graphics feature of airborne electronic attitude and direction indicator(EADI),the graphics processing algorithms are designed and verified based on DSP+FPGA hardware platform.The graphics is divided into three layers when the system is initiated,in which the filling layer and dynamic character layer varies with the different flight parameters.The graphics processing procedure is divided into two steps of outline generating and area filling,which are respectively realized by DSP edge markin...