基于FPGA+ARM的液晶光阀驱动控制系统设计  

Design of Liquid Crystal Light Valve Drive Control System Based on FPGA+ARM

作　　者：熊雨乔 韩文波[1] XIONG Yuqiao;HAN Wenbo(College of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun 130012,China)

机构地区：[1]长春理工大学光电工程学院,吉林长春130012

出　　处：《电视技术》2023年第3期115-117,共3页Video Engineering

基　　金：吉林省科技厅项目(20200401066GX)。

摘　　要：利用液晶光阀实现星图模拟,为星敏感器提供星图导航,在星敏感器地面功能验证方面得到广泛应用。采用现场可编程逻辑门阵列(Field Programmable Gate Array,FPGA)+ARM架构设计一套液晶光阀驱动控制系统,采用数字视频接口(Digital Visual Interface,DVI)及视频解码技术、DDR2 SDRAM乒乓操作技术、并行D/A转换技术保证星图高刷新率下的显示。同时采用过驱动技术,改善动态星模拟器高刷新率引起的运动伪像。系统可实现2 048×1 556@60 Hz的液晶光阀星图显示,保证动态星模拟器星图刷新时间小于50 ms的要求,为高分辨率、高刷新率的动态星模拟器星图显示设备研制提供技术支持。Using liquid crystal light valve to realize star map simulation and provide star map navigation for star sensor,it has been widely used in ground function verification of star sensor.This paper uses Field Programmable Gate Array(FPGA)+ARM architecture to design a set of liquid crystal light valve drive control system,and uses Digital Visual Interface(DVI) interface and video decoding technology,DDR2 SDRAM ping-pong operation technology,and parallel D/A conversion technology to ensure the display of star map at high refresh rate.At the same time,the over-drive technology is adopted to improve the motion artifacts caused by the high refresh rate of the dynamic star simulator.The system can realize 2 048×1 556@60 Hz liquid crystal light valve star map display,ensures that the dynamic star simulator star map refresh time is less than 50 ms,and provides technical support for the development of the dynamic star simulator star map display device with high resolution and high refresh rate.

关 键 词：星图显示 驱动控制 现场可编程逻辑门阵列(FPGA) 液晶光阀 

分 类 号：TN873[电子电信—信息与通信工程]