Research And Design Of The Antenna Controller Of ARM-based Ship-borne Satellite Earth Station

As a result of China’s vast sea area, it is too difficult and unrealistic to cover cable network inthe sea. Nowadays, with the rapid development of satellite communication technology,"mobilecommunication terminal" can be installed on the shipboard.We can establish communicating link inthe blind sea area with the help of geo synchronous satellite.It meet the urgent needs of military,civil and other maritime communications. So the existence of ship-borne antenna has greatsignificance in the sea communication.In recent years, with the rapid development of embedded technology, ARM32bit embeddedRISC processor occupies a leading position in the application of the embedded system with itscharacteristics of low power consumption, low cost, high performance.The main work of this paperis to upgrade the controlling platform of original ship-borne satellite communication earth stationfrom basing on single chip to ARM9chip.It is studied from three aspects: First, the hardware circuitdesign based on ARM9. Secondly, building up the development platform of embeddedARM&Linux system. Thirdly, writting the servo control program according to the systemrequirements introducing the program’s executing processes.This project’s goal is to make the control system to drive the motors, acquire sensor data,feedback to the system and realize automatic searching tracking the star steadily. At present, thesystem has been completed, and we realize the upgrading of the control system.