The Design And Development For Antenna Control System Of Self Tracking Earth Station

With the rapid development of satellite communications technology, and theincreasing attention China has been paying to emergency communications, it hasbecome an important research topic in terms of satellite communication groundapplications to design easy-to-use autotracking earth stations that are of full-featured,reliable performance. Autotracking earth station is a high-tech product that integratesmicrowave, structure, hardware, software and communications technologies as one,which is mainly used in environmental situations when conventional communicationsfail to perform, such as the real-time transmission of data, images and voice amidstmajor natural disasters and other conditions.Under the background of China mobile3.0m C band from tracking satellitecommunication station in earth, the thesis mainly do research of antenna controlsystem. Follow the Technique Data Specification, antenna structure of the Positionpitch type, with embedded controller as control core, propose the overall designscheme based on day feedback subsystem, control subsystem, mechanical transmissionsubsystem and receiver subsystem. Detailed introduced the selection of the sensors andkey components, and design the hardware structure. To realize the speedability,stability and high precision of the antenna pointing at the satellites, design the antennasearch and tracking algorithm, introduced the working process of the antenna foundingthe star, choose the optimization algorithm through the comparison, and then designthe software module of the system. Finally, conduct the debugging of software andhardware module, and conduct combined debug for the control system. Afterdebugging, function of the antenna control system was tested, through the test resultwe can see that the system has achieved the expected design goal, which prove thesystem design scheme to be effective.