对直线运动型无线光通信中的光束偏转进行了分析，给出了不同运动距离与光斑半径、光接收功率的关系；不同偏转角度与光接收功率、像点偏移量的关系。在直线轨道上，进行了发射端静止、接收端运动，发射端运动、接收端静止两种情况下的光功率接收实验，并分别比较大孔径光纤和实心耦合光锥的空间光接收性能，提出采用实心光锥作为空间光耦合接收元件。实验结果表明：在运动距离最远为80 m的情况下，实心耦合光锥能有效接收光束偏移后的聚焦光信号，适用于直线运动型无线光通信。

The beam offset in rectilinear mobile optical communication is investigated thoroughly, and the relation between mobile distance and spot radius, optical receiving power and the relation between angle offset and optical receiving power, image offset are presented. The experiments on optical receiving power are done at the rectilinear orbit with immobile optical transmitter and mobile optical receiver,and with mobile optical transmitter and immobile optical receiver . The space light receiving performance is compared between big aperture optical fiber and solid optical taper. The optical taper is presented as the space light coupling receiving component. The result of the experiment shows that the solid coupling optical taper can receive the focused light signal effectively when the beam is deflected, and suitable to the rectilinear mobile wireless optical communication with the mobile distance scope of 80 m.