ARINC818视频总线信号测试方法研究

Research On ARINC818 Video Bus Signaltesting Method

摘要:

ARINC 818航空电子数字视频总线因其高带宽、低延时的特性，在现代航空器上得到越来越多的应用。在飞行试验过程中，由于受到遥测传输带宽的限制，将该视频总线信号无损地传输至地面进行实时监测是不可能实现的。本文通过对视频信号的分析，提出了经过格式转化、视频压缩、TS包传输实现多幅画面同时传输的一种方法，并详细介绍了其工程实现过程。试飞验证表明，本测试方法正确，工程上合理可行，传输画面质量清晰流畅，链路时延满足实时监控要求.

Abstract:

ARINC 818 avionics diitgital video bus has been used more and modern aircraft because of high bandwith and low delay.Due to the limitation of telemetry transmission bandwith,it is impossible to the video bus signal to the ground for real-time monitoring without damage during flight test.Based on the analysis of video signal ,this paper puts forward a method to realize the simultaneous transmission of multiple picture through format transformation ,video compression and TS packet ,and introduces its engineering implementation process in detail.Test flight vertification shows that the test, method is correct,reasonable and feasible in engineering,transmission picture quality is clear and smooth,link delay meets the requirements of real_time monitoring.