Research On The Tracking System Of6m Antenna Of Satellite Earth Station

As science and technolegy keep developing,satellite plays an important pragmatic rolein the application of broadcasting,communication,and meteorology.Satellitecommunication becomes an important means of communication in morden times,and iswidely applied in commercial and military communication.The six meters antenna ofSatellite earth station is one of the representatives of small and medium-sized sendig andreceiving antenna.In this paper,the three closed loop control mode of electric,current speed and location isformulated by considering the problems of tracking in the actual use of the six metersantenna of Satellite earth station.The paper also analyses the theories an hardware designscheme of the models of telescope control unit,to avoid the phenomenon of AE antennaoverhead blind area according to the characteristics of overhead tracking system.On thebasis of Lagrangian principle,the paper researches on the antenna servo system dynamicsand kinematical equation,and use PID algorithm to control location.The paper alsoresearches on the application of the combination of adaptive control technology in thetracking system by considering the problems in the application of Large angle digitalguide.The experiments show the above techbology improves the tracking accuracy andstability.By collecting the17encoder using CPLD,the realtime performance and accuracyof data and guaranteed,and the error rate of data collection is reduced.The paper presentsthe simulation result and RTL electric circuit,and finds that timing simulation goes well,nosigns of error code of delay occur.Finally, the paper researches the Bipolar technology,improving the velocity andaccuracy,the power device accomplished by IGBT.