无信标光快速捕获技术研究  

Research on the Fast Acquisition Technology for Beaconless PAT System

作　　者：边晶莹[1] 任斌[1] 鲁倩[1] 薛时雨[1] BIAN Jingying;REN Bin;LU Qian;XUE Shiyu(China Academy of Space Technology(Xi′an),Xi′an 710000,China)

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2018年第5期87-90,共4页Space Electronic Technology

摘　　要：文章针对卫星光通信的无信标光捕获中由于信号光束散角小、不确定区域大、FPA偏转范围有限等引起的捕获难度大的问题,提出了"大圈套小圈"的扫描策略,提出了"凝视-扫描"、"跳步-扫描"与"扫描-扫描"3种捕获模式。通过对这3种捕获模式的理论分析、建模仿真与实验验证,明确了在不同应用场景下适合的最佳捕获模式。"大圈套小圈"的扫描策略与最佳捕获模式的结合,可实现无信标光快速捕获。In beaconless acquisition of satellite optical communication,some problems which the small divergence angle of communication laser,the big field of uncertainty and the limited deflection range of FPA will result in acquisition difficulties.The scanning method of“Small Circle inside Great Circle”and several acquisition modes were proposed.The theoretical analysis,simulation and experiments were performed for diverse acquisition mode.The optimum acquisition mode has been determined in the specific application scenarios.The perfect combination of the scanning method and the best acquisition mode will realize Fast Acquisition in beaconless PAT system.

关 键 词：无信标光捕获 扫描 捕获时间 

分 类 号：V443.4[航空宇航科学与技术—飞行器设计]