FPGA-Based Submarine Star Tracker System
Liu Ai-dong · Ordnance Industry Automation · 2005
The submarine star tracker system is controlled with an industrial control computer. The angle and velocity data is inputted through FPGA (Field Programmable Gate Array), the comprehensive comparison and a PID revising is made by industrial computer, and then the produced digital voltage signal is converted through the D/A converter. The movement of the torque motor was controlled with digital voltage signal amplified by PWM and the power amplifier. The system software includes such programs as the man-machine interactive interface, input and output interfaces and automatic tracking, etc. The system was applied to reduce components and enhance reliability and real time capability.