Satellite signal auto-tracker

The application discloses a satellite signal auto-tracker. The satellite signal auto-tracker is composed of a main control unit module, a central frequency spectrum analysis module, a satellite signal acquisition module, a power supply module and a motor drive module, wherein the satellite signal acquisition module is connected with the central frequency spectrum analysis module and the power supply module, used for carrying out analysis processing on the acquired target satellite signal and then converting the acquired target satellite signal to a corresponding direct-current voltage signal, and conveying the direct-current voltage signal to the main control unit module to process; the main control unit module is connected with a rotary table module and the power supply module. The satellite signal auto-tracker provided by the application is capable of acquiring the satellite signal according to a high-frequency head installed on an antenna surface, the acquired signal is analysed by a frequency spectrum analyser and then sent to the main control unit module, and then used for driving the movements, pitching and rolling of two direct-current motors to adjust the posture of the antenna surface, thus the high-frequency head is always capable of receiving the satellite signal. The satellite signal auto-tracker can be widely used in navigation.