In this article, we discussed the principle of ALT-ALT mount for small satellite tracker and proved this mount has no blind area near the zenith, need small tracking velocity and acceleration only.

• 讨论了小型光电人卫跟踪仪的ALT-ALT机架原理，分析证明采用这种机架形式没有天顶盲区、跟踪速度和加速度较小。