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TIRCIS: thermal infrared compact imaging spectrometer for small satellite applications

机译：TIRCIS：用于小型卫星应用的热红外紧凑型成像光谱仪

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摘要

Measurements of reflectance or emittance in tens of narrow, contiguous wavebands, allow for the derivation of laboratory quality spectra remotely, from which the chemical composition and physical properties of targets can be determined. Although spaceborne (e.g. EO-1 Hyperion) hyperspectral data in the 0.4-2.5 micron (VSWIR) region are available, the provision of equivalent data in the log-wave infrared has lagged behind, there being no currently operational high spatial resolution LWIR imaging spectrometer on orbit. TIRCIS (Thermal Infra-Red Compact Imaging Spectrometer), uses a Fabry-Perot interferometer, an uncooled microbolometer array, and push-broom scanning to acquire hyperspectral image data. Radiometric calibration is provided by blackbody targets while spectral calibration is achieved using monochromatic light sources. The instrument has a mass of ＜15 kg and dimensions of 53 cm × 25 cm × 22 cm, and has been designed to be compatible with integration into a micro-satellite platform. (A precursor to this instrument was launched onboard a 55 kg microsatellite in October 2015). The optical design yields a 120 m ground sample size given an orbit of 500 km. Over the wavelength interval of 7.5 to 14 microns up to 50 spectral samples are possible. Measured signal-to-noise ratios range from peak values of 500:1 to 1500:1, for source temperature of 10 to 100 °C.
机译：在数十个狭窄的连续波带中测量反射率或发射率，可以远程推导实验室质量光谱，从中可以确定目标的化学成分和物理性质。尽管可以获得0.4-2.5微米（VSWIR）范围内的星载（例如EO-1 Hyperion）高光谱数据，但对数波红外中的等效数据提供却落后了，目前还没有可操作的高空间分辨率LWIR成像光谱仪在轨道上。 TIRCIS（热红外紧凑型成像光谱仪）使用Fabry-Perot干涉仪，未冷却的微辐射热计阵列和推扫式扫描来获取高光谱图像数据。黑体目标提供辐射度校准，而单色光源则实现光谱校准。该仪器的质量小于15 kg，尺寸为53 cm×25 cm×22 cm，并且设计为与微卫星平台集成兼容。 （该仪器的前身于2015年10月在55千克微卫星上发射）。光学设计在轨道为500 km的情况下产生120 m的地面样本大小。在7.5至14微米的波长范围内，最多可以采集50个光谱样品。对于源温度为10至100°C的情况，测得的信噪比范围为峰值500：1至1500：1。

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  • 来源
    《Sensors, systems, and next-generation satellites XX》|2016年|100000M.1-100000M.7|共7页
  • 会议地点 Edinburgh(GB)
  • 作者

    Robert Wright; Paul Lucey; Sarah Crites; Harold Garbeil; Mark Wood; Eric Pilger; Andrea Gabrieli; Casey Honniball;

  • 作者单位

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

    Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, 1680 East-West Road, Honolulu, HI 96822, U.S.A.;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Thermal infrared; hyperspectral; small satellite; uncooled microbolometer; Fabry-Perot; interferometric; geology;

    机译：热红外；高光谱小卫星；未冷却的微辐射热计；法布里-珀罗；干涉测量地质学;

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