Multiband common-optical-path image-spectrum associated remote sensing measurement system and method

A multiband common-optical-path image-spectrum associated remote sensing measurement system, wrapped by a protective shell, wherein the system comprises:

• an infrared window (1), a two-dimensional rotating mirror (2), a planar reflector (3), a reflective multiband infrared lens system (4), a Fourier interference spectrum module (5), an image-spectrum associated processing module (6), a power supply module (7), a refrigerating module (8), and a display module (9);
• the infrared window (1) is connected to the shell, through which the infrared light in a target scene passes;
• the two-dimensional rotating mirror (2) is fixedly installed inside the shell, a center of the two-dimensional rotating mirror (2) coincides with a central axis of a field of view of the infrared window (1), a mirror plane of the two-dimensional rotating mirror (2) is placed to form an angle of 45° with the central axis of the field of view of the infrared window (1), for tracking a moving target in the target scene, and achieving local-region and multi-target sampling;
• the center of the planar reflector (3) and the center of the two-dimensional rotating mirror (2) are on the same horizontal height, the mirror plane of the planar reflector (3) is parallel to the mirror plane of the two-dimensional rotating mirror (2);
• the central axis of the reflective multiband infrared lens system (4) coincides with the center of the planar reflector (3), for focusing the multiband infrared light, and achieving common-optical-path imaging and spectrum measurement;
• an optical signal input end of the Fourier interference spectrum module (5) is connected to the reflective multiband infrared lens system (4), an electrical signal output end of the Fourier interference spectrum module (5) is connected to the image-spectrum associated processing module (6), for acquiring infrared spectrum data;
• the image-spectrum associated processing module (6) is connected to the reflective multiband infrared lens system (4), for realizing image-spectrum associated processing;
• and
• the power supply module (7), the refrigerating module (8), and the display module (9) are respectively connected to the image-spectrum associated processing module (6).