Development Of A Low Price And Light Antenna Controller For Satellite Communications

So-called satellite mobile communication system is the one composed of many mobile terminals supported by a satellite reaper. Such a terminal is usually transported by vehicular equipment, whose antenna can be folded for transport convenience and can be easily installed to aim at a satellite to set up communication link, among which the antenna controller is an important device.This thesis involves to the development of low price and light antenna controller. At first, the thesis puts forward the functions and specifications to which an antenna controller should reach by analyzing such mobile communication applications. Then, a developing platform is constituted based on the MCS51 single chip computer, CPLD hardware devices, and the Small RTOS51 operation system, so that the development efficiency can be very high, and its function upgading can be very convenient. Further more, an antenna controller is designed and implemented by using the platform; moreover, various functions have been realized and validated through design of hardware and software interface of the peripheral module. Besides, a satellite aiming algorithm is investigated in the circumstance. Finally,an antenna controller product prototype is developed.Considering the complexity of its application environments, the thesis discusses some problems such as its anti-interference performance, security property and redundance design.A lot of test and outdoor environment experimentation have been finished, and all the results show that the performance and specifications of the prototype has reached the expected goal.