针对无线光通信对快速、精准的光束对准技术需求,为减小系统链路建立时间,增加捕获可靠性,提出将GPS技术应用于光通信实验系统中。以TMS320F2312为控制核心,可根据实时GPS坐标解算出需调整的方位及俯仰角,进而驱动二维转台完成初始捕获,据此进行了多次初始捕获实验。结果表明,采用GPS导航定位技术,可快速实现信标光的初始捕获,且具有较高的捕获成功概率。 Aiming at the requirement of wireless optical communication for fast and accurate beam alignment, in order to reduce the system link establishment time and increase the acquisition reliability, GPS technology is proposed to be used in optical communication experiment system. Taking TMS320F2312 as the control core, the azimuth and pitch angle needed to be adjusted can be calculated according to the real-time GPS coordinates, and then the two-dimensional turntable can be driven to complete the initial acquisition, and several initial acquisition experiments are conducted accordingly. The results show that using GPS navigation and positioning technology, the initial acquisition of beacon light can be quickly realized, and the probability of successful capture is high.