Aperture-divided polarization multispectral imaging instrument

The utility model discloses a multi-aperture polarization multispectral imaging instrument, which comprises a plurality of groups of spectral channel imaging subsystems and a control module. Wherein the spectrum channel imaging subsystem is arranged on the instrument in an array form and comprises a spectrum optical filter, a main imaging lens, a sub-aperture module, a polaroid array and a focal plane detector. Wherein the sub-aperture module is placed behind the main imaging lens, comprises four sub-lenses arranged in a 2 * 2 array form, and is used for dividing incident light into four sub-aperture views; the polarizer array is placed behind the aperture division module and comprises four different sub-polarizers arranged in a 2 * 2 array form, namely linear polarizers in three directions of 0 degree, 45 degrees and 90 degrees and left-hand circular polarizers; after the focal plane detector is placed on the polarizer array, the focal plane detector is divided into four sub-regions for recording correspondi