从可见光到热红外的全谱段探测的多光谱成像仪器能够同时对可见光、近红外、短波红外、中波红外、长波红外光谱范围内的多个谱段进行探测, 是目前得到广泛研究及应用的成像光谱仪器。这类仪器在国土资源、环境监测、城市遥感、海洋监管等方面均有较高的应用价值。本文概述了此类仪器的国内外研究发展现状, 对国外 Landsat系列载荷、MODIS、国内的资源系列载荷、高分五号全谱段光谱成像仪等代表性仪器的技术指标和特点进行了总结。通过分析认为更加全面和精细的光谱覆盖、成像方式的改进与技术指标提高、定标手段和定量化水平提高、数据的持续性及稳定性是未来发展的趋势。

A multi-spectral imager with a band range from visible to thermal infrared is a type of imaging spectrometry instrument that can detect multi bands of VIS, NIR, SWIR, MWIR, and LWIR radiation, and it attracts extensive study and has wide applications. It is highly valuable in many applications such as land resources surveys, environmental monitoring, urban remote sensing, and marine supervision. The domestic and international development of such an instrument is outlined in this paper. This paper also summarizes the technical parameters and characteristics of representative instruments including Landsat series, MODIS, CBERS series, and VIMI. Data continuity and stability, increased specification, wide spectral coverage, and improved quantitative applications are the future trends of such technology.