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首页> 外文会议>Geoscience and Remote Sensing Symposium, 2008 IEEE International-IGARSS 2008 >Development of a Compact, Lightweight, Passive Fabry-Perot Radiometer for Measurements of Trace Gases in the Martian Atmosphere
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Development of a Compact, Lightweight, Passive Fabry-Perot Radiometer for Measurements of Trace Gases in the Martian Atmosphere

机译：研制一种紧凑，轻便，被动的法布里-珀罗辐射计，用于测量火星大气中的痕量气体

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摘要

Progress on the development of a differential radiometer based upon the Fabry-Perot interferometer (FPI) for methane (CH4), water vapor (H2O) and formaldehyde (CH2O) detection in the atmosphere of Mars is presented. The proposed FPI based instrument is designed to make absorption measurements of trace gases in the Martian atmosphere. The measurements can be made from a satellite platform using nadir and limb viewing modes of operation or from a ground platform such as a lander in a direct sun viewing mode. The FPI technique offers a unique combination of high spectral resolution enabling great specificity with high optical throughput permitting a large signal to noise ratio. A version of this instrument for measuring column CO2, O2, and H2O vapor on Earth has been highly developed at Goddard over the last five years and has had extensive testing from both ground and aircraft platforms. The instrument has been further advanced through an ISAL (Instrument Synthesis and Analysis Lab) studies to reduce the size and power requirements to be more appropriate for a Mars mission.
机译：基于法布里-珀罗干涉仪（FPI）的甲烷（CH 4 ），水蒸气（H 2 O）和甲醛（CH）差分辐射计的开发进展介绍了在火星大气中的 2 O）检测。所提出的基于FPI的仪器旨在对火星大气中的痕量气体进行吸收测量。可以从卫星平台使用最低点和四肢观察模式进行测量，也可以从地面平台（如着陆器）以直接太阳观察模式进行测量。 FPI技术提供了高光谱分辨率的独特组合，可实现高度的特异性和高光通量，从而可实现较大的信噪比。在戈达德（Gardard）上空高度发展了这种用于测量地球上CO 2 ，O 2 和H 2 气柱的仪器的版本。持续了五年，并且已经在地面和飞机平台上进行了广泛的测试。该仪器通过ISAL（仪器综合和分析实验室）研究得到了进一步的发展，以减小尺寸和功率要求，使其更适合火星任务。

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