基于虚拟仪器技术的光通信跟踪精度检测系统

摘要

Image processing technology is one of the important factors effecting tracking positioning precision in researching the detection of tracking precison of space optical communication. The problems faced by the current image processing technology, is that the development period is too long and some hardware like the frame grabber cannot be well compatible with the others, which causes that the accuracy cannot be detected quickly. This paper puts forward a method of image detection based on Virtual Instrument. Firstly, on the basis of some conception of tracking procesion inspectiong of Space Optical Communication, the system hardware platform is established, and the spot image is obtained by CCD and image acquistion card. Then the image is processed and distinguished with the Virtual Instrument and digital image processing technology. Finally the spot is positioned and tracking accuracy is obtained through mass data acquiring and statististical computing. The experiment states that this system can detect the tracking precision of optical communication quickly and effectively in complicated environment, and is valuable in use.%在空间光通信跟踪精度检测的研究中,图像处理技术是影响目标跟踪定位精度的重要因素.针对当前图像处理技术在软件方面存在开发周期长、对图像采集卡等专用硬件设备兼容性差等问题,导致无法快速便捷地检测精度,提出一种虚拟仪器技术的图像检测方法.根据光通信跟踪精度检测原理搭建系统硬件平台,通过CCD摄像机和图像采集卡获取光斑图像,再利用虚拟仪器技术和图像处理技术对获取的光斑图像进行处理与识别,对识别出的光斑计算出位置,通过数据采集和统计计算得出跟踪精度.结果证明,系统能实时有效地检测复杂环境下光通信跟踪精度,具有一定的实用价值,为检测系统设计提供依据.