摘要
近年来随着航空电子数字视频总线(avionics digital video bus,ADVB)的快速发展,ADVB逐渐替代了机载原有的数字视频接口(digital visual interface,DVI)、视频图形阵列(video graphics array,VGA)、低电压差分信号(low-voltage differential signal,LVDS)等视频传输方式,在先进战斗机、民机、直升机、教练机等新型试验机航电系统中成为重要的数据载体。面对新型视频总线测试,现有的试验测试方法已经不能满足要求。从基础协议研究出发,结合机载航电系统的接口控制文件(interface control document,ICD)结构特征信息,通过自适应识别、重采样、时序重构等技术途径,完成了高速率、多样化视频格式的自适应处理,实现了多型机的通用化测试;通过搭建试验平台,成功实现1680×1050@60 fps等非常规视频、2560×1024@30 fps等高分辨率视频的采集记录。回放视频数据完整清晰,验证了本文方法的有效性。设计的测试系统兼容现有的视频测试现状,能够有效降低试飞成本,提高试飞效率。
In recent years,with the rapid development of ADVB avionics digital bus,it has gradually replaced the original airborne video transmission methods such as DVI,VGA,LVDS,and etc.It has become an important data carrier in the avionics systems of new test aircraft such as advanced fighter jets,civilian aircraft,helicopters,and trainer aircraft.The existing test methods are no longer sufficient for the new video bus.Starting from the basic protocol research,in combination with the ICD structure feature information of airborne avionics system,the self-adaptive processing of high-speed and diversified video formatsand were completed through the technical approaches such as adaptive identification,resampling,timing reconstruction,and etc.,and the generalized test of multi-type machines was realized.By building an experimental platform,the acquisition and recording of the unconventional videos such as 1680×1050@60 fps and the high-resolution videos such as 2560×1024@30 fps were successfully realized,and the playback video data was complete and clear,which could verify the method effectiveness.The designed test system is compatible with the existing video test status,which can effectively reduce the cost of flight test and improve the efficiency of flight test.
作者
李宁宁
陈海洋
LI Ningning;CHEN Haiyang(Technology Center Testing Institute,Chinese Flight Test Establishment,Xi'an 710089,China)
出处
《应用光学》
CAS
北大核心
2023年第6期1300-1305,共6页
Journal of Applied Optics
基金
民机试飞技术及规范体系研究(MJZ3-3N21)。
