PDF(Pubmed)
Abstract：
This work studies enhancing the capabilities of compact laser spectroscopes integrated into space-exploration rovers by adding 3D topography measurement techniques. Laser spectroscopy enables the in situ analysis of sample composition, aiding in the understanding of the geological history of extraterrestrial bodies. To complement spectroscopic data, the inclusion of 3D imaging is proposed to provide unprecedented contextual information. The morphological information aids material characterization and hence the constraining of rock and mineral histories. Assigning height information to lateral pixels creates topographies, which offer a more complete spatial dataset than contextual 2D imaging. To aid the integration of 3D measurement into future proposals for rover-based laser spectrometers, the relevant scientific, rover, and sample constraints are outlined. The candidate 3D technologies are discussed, and estimates of performance, weight, and power consumptions guide the down-selection process in three application examples. Technology choice is discussed from different perspectives. Inline microscopic fringe-projection profilometry, incoherent digital holography, and multiwavelength digital holography are found to be promising candidates for further development.
摘要：
这项工作研究了通过添加3D地形测量技术来增强集成到太空探索探测器中的紧凑型激光光谱仪的功能。激光光谱可以对样品成分进行原位分析，帮助了解外星天体的地质历史。为了补充光谱数据，包括3D成像被提议提供前所未有的上下文信息。形态信息有助于材料表征，从而限制了岩石和矿物历史。将高度信息分配给横向像素会创建地形，它提供了比上下文2D成像更完整的空间数据集。为了帮助将3D测量集成到基于火星车的激光光谱仪的未来提案中，相关的科学,漫游者,并概述了样本约束。讨论了候选的3D技术，和性能估计，体重,和功耗在三个应用示例中指导下选过程。从不同的角度讨论了技术选择。在线显微条纹投影轮廓术，非相干数字全息，和多波长数字全息被发现是进一步发展的有希望的候选人。
