摘要
在空间光通信系统中,终端平台目标光的捕获技术是通信链路建立的一项关键技术。对于传统的扫描捕获方式,由于探测器等各种误差存在以及不确定区域的影响,导致系统捕获概率较低,且时间较长,最终导致空间光通信系统链路建立困难。基于此,提出采用GPS辅助APT系统完成目标捕获,并建立目标快速捕获系统,系统以Cortex-M3单片机为控制核心,采用GPS进行目标快速定位,搭配水平和俯仰基准传感器,利用GSM网进行无线传输。采用该系统进行了固定点捕获实验,结果验证了上述方法的有效性。
In the free-space optical communication system, the acquisition technology of opto-electronic target for terminal platform is a key technology to establish a communication link. Various errors of the detectors and the impact of uncertainty region will result in low capture probability and long consumption time, making it difficult to establish the space optical communication system link. So GPS technology is adopted to complete the target acquisition and establish the rapid target acquisition system. In this system, the Cortex-M3 microcontroller is the control core, and GSM network is adopted for wireless transmission,by combining with the level and pitch reference sensor. Fixed-point acquisition experiments were performed and the validity of the design was verified.
出处
《半导体光电》
CAS
CSCD
北大核心
2013年第4期654-657,共4页
Semiconductor Optoelectronics
基金
湖北省自然科学基金资助项目(2010CDB08502)
湖北省教育厅资助项目(Q20121103)
关键词
自动控制技术
快速捕获
捕获概率
水平和俯仰基准角
auto-control technology
fast acquisition
acquisition probability
level andpitch reference angle
