Analysis and correction of axis error in periscope-type optical communication terminals

作者：Wu Shichen^*; Tan Liying; Yu Siyuan; Ma Jing

来源：Optics and Laser Technology, 2013, 46: 127-133.

DOI：10.1016/j.optlastec.2012.04.035

• Periscope-type Satellite optical communication terminals
• Axis error angles
• Pointing errors

Highly precise pointing is needed in satellite optical communication systems because of the extremely narrow laser beam. The axis error angles can cause large pointing error angles. In this paper, the matrixes of the axis error angles were given through geometric optics. And the models of pointing error angles caused by the axis error angles were built in the periscope-type optical communication terminals. The models show that the pointing error angle of azimuth axis increases quickly when the elevation angle theta(EL) is approximate to 0 degrees or 180 degrees. The correction of axis' error has been performed and the pointing error angles have been corrected. This work provides the theory that can benefit the design and assembling of periscope-type optical communication terminals, and it can amend the pointing error angles caused by axis error angles during working. Besides, according to these models, some optical elements, whose position errors cause pointing error angles, can be researched by quantitative analysis.

• 出版日期2013-3
• 单位哈尔滨工业大学