卫星太阳敏感器模拟器校准技术研究

Research on Satellite Solar Sensor Simulator Calibration Technology

针对卫星姿轨控半实物仿真系统的技术要求,提出了一种用于太阳敏感器模拟器的校准装置。校准装置以FPGA和AVR单片机为控制核心,微型单板电脑模拟动力学计算机,通过网口进行指令的上传下达。内置信号调理电路、高精度采集模块,数据解算模块等。该校准装置集成度高,替代了原有由数字表、动力学计算机等组成的复杂校准系统,有效地降低了成本,提升效率约40%,实现了太阳敏感器模拟器的快速全过程在线校准。

According to the technical requirements of the satellite attitude and orbit control subsystem semi-physical simulation system,a calibration device for the solar sensor simulator is described.The calibration device uses FPGA and AVR microcontroller as the control core,micro-board computer to simulate dynamic computer,which uploads and downloads instructions through the network port.What’s more,the calibration device builts signal conditioning circuit,high-precision acquisition module,data solving module inside,etc.The calibration device is highly integrated,which replaces the complex calibration system composed of digital instruments and dynamics computers,effectively reduces the cost,improves the efficiency by about 40%,and realizes the fast online calibration of the solar sensor simulator in the whole process.