Principle of multispectral resolution remote sensing

Its principle is similar to "color separation photography". This is usually achieved by using a multiband camera, a multiband scanner or a multiband television camera system. Multi-band photographic images or scanned images can be obtained, and false color photos can be formed after color synthesis. Provide more remote sensing information than single-band photography. Visible light and near infrared bands are usually used, which combine their respective advantages. In this spectral range, the solar radiation flux density accounts for more than 85% of the total radiation flux density, and the imaging effect is good. Widely used in space remote sensing, such as multi-band scanning systems (MSS and TM) on land satellites, it is the main sensor to provide space remote sensing data.