Research On The System Control Performance Of Vehicle-borne "Mobile Communication" Satellite Communication Earth Station

In the age of information and communication diversification, satellite communicationplays an indispensable role. Fixed satellite communication has its limitations, so the de-mand of Vehicle-borne Mobile Satellite Communication System is increasing. So far, thetechnology of “SOTM” in our country is far left behind, However, There are many probl-ems we have to settle in the self-development of vehicle system, such as The design ofthe core algorithm, sensor selection and use, PID automatic control, mechanical constru-ction design and so on. In this paper, We cater to existing market demand to research t-he control performance of a low Proffle “SOTM” system.After reading a large number of relevant papers and data, The article researchs relyon the existing unmatured “SOTM” system, The research content mainly includes the a-melioration of the system structure, the optimization of existing hardware and software a-nd the improvement of system key control technology. Among them, the main task in t-he ameliorating system structure parts is increase the device and circuit for the importantalgorithms, in the optimizing hardware and software parts, the article optimize the algori-thms of each module as well as circuit design, finally Rotating search method will be p-resent in the improving the system key control technology parts, besides The antenna po-sitionnotation will be introduced in the conical scan algorithm，at the same time, the art-icle introduces the Roll compensation law。Currently, The vehicle-mounted system, which has a high communication quality, ha-ve been accurately alignment satellite under the test environment of3d motion simulationdevice, So the next step is install the “SOTM” system to the vehicle,then testing and i-mproving.