Mobile Satellite Antenna Stabilization And Tracking System Design And Engineering To Achieve

With the background of stabilized system design for satellite communication, the designand engineering development of the mobile satellite antenna stabilized tracking system isdiscussed in this paper. This system is based on 3-axis digital compass, gyro and steppingmotor and is designed to realize two functions. The first function is to search the targetsatellite automatically according to the received attitude angles and the satellite signals.The second function is to carry out stabilized servo control according to the gyro signalsfrom three axes so as to isolate disturbances from vehicles.The main contents of this paper include the design of the scheme as a whole, the hardwaredesign and testing of the controller, the software design and debugging of the system. Bothprogram tracking and stepping tracking arithmetic were used in the satellite auto-searchingtask. The coordinate transforms, feed-forward compensation control in the roll and pitchaxis and closed-loop control in the heading axis were discussed in the stabilized servocontrol part.At last, the controller of the antenna was tested to mn reliably. The system was tested bythe three-dimension motion simulator and the expectable performance was achieved on thewhole. And it's proved that the whole scheme of the system is available and valid. At last,some problems that occurred during the debugging and the working together with the nextstep of the work are pointed out.