中国首次火星探测任务火星车有效载荷定标试验

Calibration of Mars Rover’s Payloads for China’s First Mars Exploration Mission

摘要: 我国首次火星探测任务火星车配置了多光谱相机、火星车次表层探测雷达、火星表面成分探测仪、火星表面磁场探测仪、火星气象测量仪等科学探测有效载荷。为保证在轨获得科学数据的有效性，有效载荷完成了地面定标试验，确定仪器的性能指标，获取在轨科学数据定量化应用必需的定标系数。介绍了有效载荷的定标试验项目、方法和结果。试验结果表明，各仪器性能指标具有良好的一致性、稳定性，为实现科学探测目标奠定了坚实基础。

Abstract: China’s Mars rover’s payloads consist of five devices, including multispectral camera, Mars rover penetrating radar, Mars surface composition detector, Mars rover magnetometer and Mars climate station. To ensure the validity of the scientific data obtained onboard, calibration should be carried out on the ground. Through calibration, the instruments’ performance can be determined and the calibration coefficients can be obtained, which are necessary for the quantitative analysis of scientific data. The calibration contents and results are introduced.The test results show that the performance of each instrument is stable and consistent, and lay a solid foundation for achieving scientific goals.