由于硬件系统采用的是光栅图形显示系统，罗盘画面旋转受光栅扫描显示器的限制存在着锯齿形失真、扭曲等走样现象。
As hardware system using grating graphics display system, there are saw tooth-shaped distortion in compass screen when it rotates owing to the restrictions of the grating scan display.
主要介绍光栅ppi显示器系统组成及图形控制电路的原理及其设计思想、芯片功能、电路及今后的发展趋势等。
This paper describes the composition of raster PPI display, the principle and design considerations of graphics control circuit, functions of chips, the circuit and its tendency.
而硬件系统采用的是光栅图形显示，字符和刻度线的旋转受屏幕分辨率的限制存在着锯齿走样现象，影响显示效果。
But in the raster graphic display system, scale lines and character will be distorted seriously owe to the limited screen resolution in the case of deflection, which affect the display quality.
而硬件系统采用的是光栅图形显示，字符和刻度线的旋转受屏幕分辨率的限制存在着锯齿走样现象，影响显示效果。
But in the raster graphic display system, scale lines and character will be distorted seriously owe to the limited screen resolution in the case of deflection, which affect the display quality.
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