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火星遥感探测任务中,火星表面原始非合作目标(即:火星原生态表面目标)定位信息的获取对于科学研究的开展及工程的实施具有重要意义,是火星遥感探测信息应用的重要内容之一。针对定位信息的误差建模分析将对提高火星表面非合作目标的定位精度提供关键指导。文章以火星探测器所搭载的光学轨道相机为影像信息获取手段,在所获取的影像数据基础上,分析并建模讨论了火星表面非合作目标定位信息的各影响误差项,涉及影像像元分辨率、探测器定位信息、探测器姿态信息、影像时统信息、火星表面高程信息及相机安装布局信息等,并结合实际算例,给出了提高目标定位精度的分析建议。作为创新点之一,文章以火星探测为背景,通过火星探测器与地面测控站间通信链路方式,完成了以影像信息为基础的定位误差分析完备性表述,该分析结果可为后续行星及小天体遥感成像探测的优化应用提供一定的参考。
In the Mars remote sensing exploration mission, the acquisition of the original non-cooperative target of Mars surface (that is, the original surface target of Mars) is of great significance for the development of scientific research and project implementation, and is one of the important contents of Mars remote sensing exploration information application. Error modeling analysis of positioning information will provide key guidance for improving the positioning accuracy of non-cooperative targets on the surface of Mars. Based on the acquired image data, the paper takes the optical orbit camera equipped by the Mars probe as the means of obtaining image information, analyzes and models the influence error terms of the non-cooperative target location information on the surface of Mars, Rate, detector location information, detector attitude information, image information, surface elevation information of Mars and camera installation layout information, combined with practical examples, gives the analysis recommendations to improve the target positioning accuracy. As one of the innovations, this paper completes the positioning completeness analysis based on image information by means of the Mars exploration and through the communication link between the Mars detector and the ground control station. The analysis results can be used for the subsequent planets and Small Celestial Remote Sensing imaging detection optimization application to provide some reference.