一、概要雷达图象显示器或图形显示器采用数字式光栅扫描变换器的方法可将以往在常规随机扫描上所显示的图象、图形信号的直角座标转换成以电视光栅扫描为基础的时序座标,而时序座标又转化为一个存贮器的地址。例如,原先以矩形显示屏中心为原点的直角座标系的某目标的座标X、Y,可按以下方式转化为电视光栅座标系的时序座标。首先将强座标系平移旋转,换成以显示屏的左上角为原点的新座标系。此时,Y轴 I. Overview Radar image display or graphic display using digital raster scan converter method can be used in conventional random scan on the display of the image, the rectangular coordinates of the graphics signal is converted to a television raster-based timing base Standard, and time series coordinates into a memory address. For example, the coordinate X, Y of a target originally in a rectangular coordinate system with the rectangular display screen as the origin may be converted into the time coordinate of the television grating coordinate system in the following manner. First, rotate the strong coordinate system to the new coordinate system with the upper left corner of the display as the origin. At this time, Y axis