| In Space Optical Communication systems, the role of the ATP system is count for much, Its performance has the very important influence to the entire which course of communications success or failure.This paper describes the component and the work principle of electric control system of ATP turntable control system based on the DSP2812. In the article, key to the main composition, the principle of work and the turnplate principal characteristic of a spatial optical communication APT system, it carried on systematically explained in detail. The article has completed a APT electrically controlled concrete design in view of the actual optical communication demand, which has carried on the basic unit analysis and has completed the unit electric circuit debugging. Finally it produces the experimental result.Indicated through the design and the concrete practical application, DSP2812 applies in the control system, it has the characteristic of operating speed quickly, the reliability high, the structure compact, the cost is low and so on, it causes to the system to have the extremely good performance price ratio. |