期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：1992
卷号：XXIX Part B1
页码：145-151
出版社：Copernicus Publications
摘要：A thermal infrared grating spectrometer was developed by the Institute for Space and Terrestrial Science OSTS) andBlliTinger Research Inc. for field studies in the earth sciences. The design is based on a reflection grating and a 60element HgCdTe detector array. The useful spectral range of the instrument covers 7.9-11.3 11m with aresolution of0.09 ± 0.01 11m. The instrument averages over a 120 field of view and compares the exitance of the target to that ofan internat black body at ambient temperature. The noise equivalent temperature is approximately 0.050K over theuseful spectraI range. Background radiance reflected from the surface of the target can seriously impede thedetermination of emissivity. This effect is removed from the spectra of geological sampies by the use of referencesampIes.
