Research on Satellite Earth Sensor Simulator Calibration Technology

In order to improve the design level of spacecraft and meet the requirements of spacecraft development, it is urgent to research the calibration technology of spacecraft attitude and orbit control system (AOCS). A calibration method for satellite earth sensor simulator is proposed, and a calibration device is developed. Based on the operating mechanism and mathematical model of the satellite earth sensor simulator, with FPGA and microcontroller as the control core, the single-board computer receives and sends dynamic parameter commands through the CAN bus, completes the setting by solving the edge of the chord width signal Calibration of pitch angle and roll angle. The calibration device has a high degree of integration and fast calculation efficiency, and realizes online automatic calibration of the satellite dynamics algorithm and the hardware simulator during the whole work process. Contribute to the measurement of the information domain of the attitude orbit control system.