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国际电话电报公司(ITT)一直在为未来的在地球同步轨道上运行的遥感系统研制成像光谱仪,本文介绍该公司这方面的工作。确定了从地球同步轨道上进行超光谱成像的初步抽象要求,并将这些要求同现有技术进行了比较。通过对基于信/噪比的品质因数、成本以及技术风险等因素的评价,确定了一项高水平的综合研究。这项研究决定选用可调谐滤光片技术来研制一台实验性可见光近红外成像光谱仪。我们制作了一台实验性系统,该实验系统采用了一个声光可调谐滤光片(AOTF),目前它正在接受野外测试。我们的分析表明,傅里叶变换成像光谱仪最有希望成为在地球同步轨道上运行的热红外成像光谱仪。
The International Telegraph and Telephone Corporation (ITT) has been developing imaging spectrometers for future sensing systems operating on geosynchronous orbit, and this article describes the company's work in this area. The preliminary abstraction requirements for hyperspectral imaging from geosynchronous orbit were identified and these requirements were compared with the prior art. A high level of comprehensive research has been identified through the evaluation of factors such as the quality factor, cost, and technical risk based on signal / noise ratio. The study decided to use tunable filter technology to develop an experimental visible near infrared imaging spectrometer. We created an experimental system that used an acousto-optic tunable filter (AOTF) and is currently under field testing. Our analysis shows that Fourier transform imaging spectrometers are most promising as thermal infrared imaging spectrometers operating on geosynchronous orbit.