用锁相环跟踪抖动机构自然频率的抖动控制方法

A Dither Control Method Which Tracks the Drift of Dither Mechanism's Nature Frequency With a Phase Lock Loop

在抖动偏频激光陀螺的工作过程中 ,抖动机构的自然频率会随温度漂移 ,极端情况下可能导致机构破坏。本文提出了用锁相环跟踪抖动机构自然频率漂移的方法 ,设计了一种新型抖动控制器。实验表明 :该控制器能够跟踪抖动系统的自然频率漂移 ,保证抖动系统的安全工作。

The nature frequency of dither mechanism will drift when temperature is changing.And this may lead to dither mechanism failure in the extreme.A dither control method using phase lock technology is presented and a controller is developed.It is proved that this dither controller can track the drift of dither mechanism's nature frequency, and keep the dither system work safely.