基于SFP光模块的机载高分辨率视频信号传输技术

The Airborne High-resolution Video Signal Transmission Technology Based on SFP Optical Module

在飞行试验中,常常需要将飞机驾驶舱内的视频信号抽引出来进行实时遥测和记录,在这一过程中,视频信号经信号源到机载测试设备的高质量传输显得尤为重要。使用电缆进行高分辨率数字视频信号(DVI)长距离传输时会遇到为保证信号传输可靠线缆长不超过7 m以及受机载复杂电磁环境影响等问题,为此研究一种基于SFP光模块的机载高分辨率视频信号传输技术,视频信号主体进行电光转换后用光纤传输,再经光电转换后进行视频信号的后续采集,用光纤传输代替电缆传输。

During the flight test, the video signal from the cockpit of aircraft is always needed to be real--time telemetered and recorded. It＇s very important to transmit the video signal from the signal source to the airborne test equipment high reliably. The length of cable must be no more than 7m for ensuring signal transmission reliability and the airborne complex electromagnetic environment can impact signal transmission when using cable for high--resolution digital video signal transmission over long distances, So an airborne high--resolutlon video signal transmission technology based on SFP light module is researched. The video signal is transmitted with optical fiber after light transformation and then it is collected after photoelectric transformation. The technology uses optical fiber for video transmission instead of cable.