Research And Design On The Antenna And Tracking System Of Ship-Borne "Mobile Communication" Communication Earth Station

In such a highly information-oriented society, people are becoming increasingly dependent on communications. An in the varieties of communication modes, satellite communication has occupied an important position with its wide range, huge capacity and high flexibility. Currently, the fixed satellite communication technology has become mature, there is an urgent need of "Mobile Communication" to achieve stable communication on the shaking carrier.On the basis of comprehension on relative literature and research results on various fixed satellite communication systems, we design a Ship-Borne "Mobile Communication" Communication Earth Station System, which can be used to realize the transmission of data, images and voice in the case of ships movement to meet the military and civilian maritime communications. This paper describes the system in great detail, including not only the antenna and the design of mechanical structure, but also including key algorithms, software and hardware design. Finally, we test the performance of the entire system. The focus of this paper is to research the key algorithms and design the software and hardware.In the Ship-Borne "Mobile Communication" Communication Earth Station System, motor control algorithm (PID algorithm), frame search algorithm and conical scan tracking algorithm are the most crucial parts for the whole system. On the basis of these conventional algorithms, this paper makes some improvements. The performance has been further improved. In addition, this paper carries out a further study on the selection of hardware, the design of software, the flow chart of software and the implement of codes. Presently, this Ship-Borne "Mobile Communication" system has been measured on three-dimensional motion simulator. And the test result meets the design requirements. The next step is to install the system on the ship for further testing and improvement in the real environment. If the testing result is good enough, it is ready for mass-produce of the system.