High-precision miniaturized star sensor circuit system

The invention relates to a high-precision miniaturized star sensor circuit system. The high-precision miniaturized star sensor circuit system comprises a power supply circuit module, an image acquisition module, a signal control and processing module and a communication interface module, the image acquisition module converts a sensed optical signal into an electric signal and outputs the electric signal to the signal control and processing module. The signal control and processing module runs a star sensor control program, controls the image acquisition module, processes a star map and outputs the star map to the main control computer through the communication interface module. And the communication interface module realizes information communication among the control signal, the image signal and the main control computer. And the power supply circuit module provides a required power supply for the circuit. According to the invention, accurate control of the star sensor with small volume, light weight and low