Phoenix Robotic Arm Camera
Phoenix Robotic Arm Camera
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凤凰机械臂相机
DOI：
10.1029/2007je003044
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发表时间：
2008
影响因子：
--
通讯作者：
M. Lemmon
中科院分区：
文献类型：
--
作者：
H. Keller;W. Goetz;H. Hartwig;S. Hviid;R. Kramm;W. Markiewicz;R. Reynolds;C. Shinohara;P. Smith;R. Tanner;P. Woida;R. Woida;B. Bos;M. Lemmon
[1]凤凰号机械臂相机(RAC)是一种安装在凤凰号火星着陆器机械臂(RA)上的可变焦距彩色相机。它被设计用来获取火星表面的特写图像和RA铲子中收集的物质的微观图像(分辨率高达23μm/像素)。机械臂末端的安装位置允许RAC主动定位，以便对立体表面成像仪(SSI)不易看到的目标进行成像，例如挖掘的壕沟墙和着陆器结构下的目标。颜色信息是通过用红色、绿色和蓝色发光二极管照射目标来获取的。数字地形模型(DTM)可以从从不同视点获取的RAC图像生成。这可以提供有关壕沟墙精细细节的高分辨率立体信息。ARM可以提供较大的立体声基线，也可以提供远场数字地面模型。RAC的主要科学目标是在着陆点搜索地下土壤/冰层，并在将勺子样本送到凤凰号上的其他仪器之前对其进行表征。RAC还应提供支持SSI活动的低分辨率全景图，并获取着陆器甲板的图像，以供仪器和着陆器检查。相机设计继承了失败的火星极地着陆器任务(1999)，并为(取消的)火星探测器2001着陆器(MSL01)进一步开发。广泛的测试和部分重新校准使MSL01RAC飞行模型获得了整合到凤凰号科学有效载荷中的资格。
[1] The Phoenix Robotic Arm Camera (RAC) is a variable-focus color camera mounted to the Robotic Arm (RA) of the Phoenix Mars Lander. It is designed to acquire both close-up images of the Martian surface and microscopic images (down to a scale of 23 μm/pixel) of material collected in the RA scoop. The mounting position at the end of the Robotic Arm allows the RAC to be actively positioned for imaging of targets not easily seen by the Stereo Surface Imager (SSI), such as excavated trench walls and targets under the Lander structure. Color information is acquired by illuminating the target with red, green, and blue light-emitting diodes. Digital terrain models (DTM) can be generated from RAC images acquired from different view points. This can provide high-resolution stereo information about fine details of the trench walls. The large stereo baseline possible with the arm can also provide a far-field DTM. The primary science objectives of the RAC are the search for subsurface soil/ice layering at the landing site and the characterization of scoop samples prior to delivery to other instruments on board Phoenix. The RAC shall also provide low-resolution panoramas in support of SSI activities and acquire images of the Lander deck for instrument and Lander check out. The camera design was inherited from the unsuccessful Mars Polar Lander mission (1999) and further developed for the (canceled) Mars Surveyor 2001 Lander (MSL01). Extensive testing and partial recalibration qualified the MSL01 RAC flight model for integration into the Phoenix science payload.
影响因子：
4.8
作者：
Hecht, M. H.;Marshall, J.;Woida, P. M.
通讯作者：
Woida, P. M.