摘要
在电视导引头应用中,视频叠加显示信息可以为后期诊断调试提供有效的信息,为了能够解决视频叠加信息显示问题,提出了一种基于FPGA的视频叠加系统,该系统采用FPGA对视频的行场频及像素时钟信号进行计数扫描法,利用模拟视频开关将相应的白电平直接叠加到视频输出模拟信号上。该方法具有成本低、可靠性高和易于开发的优点。在最终的实验结果证明,该系统能够达到预期效果,对电视导引头的显示波门信息等应用画面效果良好,能够满足工程应用的需要。
In order to satisfy the requirement of the Power Control Unit, the design of the Power Control Unit test system based on LabWindows/CVI is designed in this paper. The hardware system is used to produce the input signals of PCU. The software system adopts the LabWindows/CVI software as development environment. The Power Control Unit test system can accomplish the output signals test of the Power Control Unit. The experiment and application show that this test system has good performance, and achieve the design requirement.
出处
《电子设计工程》
2016年第3期181-183,共3页
Electronic Design Engineering
基金
吉林省重点科技攻关项目(20140204030GX)
