Design And Implementation Of Ship-borne Satellite Communications Earth Station Antenna And Control System

This thesis is based on a project named ship-borne satellite earth station,which is carried out in the satellite communication laboratory in Nanjing University of Posts and Telecommunications(NJUPT).The Ka-band satellite communication system has high requirements on the device because of the difficulty in tracking.So the powerful chip STM32F407VET6 is chosen as the controller because of its faster processing,which is the basis of the control circuits and whole software system.The author's work is the main line of this thesis.And it introduces the system from whole to the refinement.This thesis mainly includes the key technologies and algorithms,control circuit design and software implementation.Among them,the key technologies and algorithms involved in the system include PID control algorithm,frame search algorithm,conical scan tracking algorithm and matlabs imulation.The design of control system circuit is based controller and split into different module.The realization of the software is based on the hardware circuit,including initial configuration and implementation of the various functions of the antenna which is combined with the corresponding algorithm.Currently,the satellite communication system has been basically completed.In addition,the simulation environment test on 3D motion simulator has also been completed.The test results are good and have achieved the expected goals.