Infrared imaging spectrometer and fast moving target hyperspectral imaging method of infrared imaging spectrometer

Abstract

The invention provides an infrared imaging spectrometer and a fast moving target hyperspectral imaging method of the infrared imaging spectrometer. The infrared imaging spectrometer comprises a Michelson interferometer of a special structure, a first optical telescoping system, a second optical telescoping system, a first focusing lens, a first medium wave array infrared detector, a second focusing lens, a second medium wave array infrared detector and a control system, wherein the first optical telescoping system and the second optical telescoping system are installed in front of a first input port of the Michelson interferometer and in front of a second input port of the Michelson interferometer respectively in the direction of the optical axis, interference light emitted from a first output port and interference light emitted from a second output port are focused by the first focusing lens and the second focusing lens respectively and then received and converted into analog electric signals by the first medium wave array infrared detector and the second medium wave array infrared detector respectively, the analog electric signals are transmitted to the control system, the control system is used for converting the analog electric signals into digital signals and is also used for target extracting, space window adjusting and Fourier transform, and then a hyperspectral cubic image is generated.

Description

Technical field [0001] The invention belongs to the field of infrared hyperspectral imaging, and specifically relates to an infrared imaging spectrometer with adjustable spatial resolution and spectral resolution. Background technique [0002] Infrared imaging spectrometer is a new generation of optical detection and analysis equipment developed on the basis of multispectral remote sensing in the early 1980s. It can not only obtain the spatial image of the target, but also obtain the hyperspectral image with fine sampling of the target spectrum. Therefore, infrared imaging Spectrometers have important application prospects and potentials in various fields, such as environmental monitoring, non-destructive monitoring, target radiation characteristics research, national defense and military research. In addition, as an advanced intelligent perception imaging system, infrared imaging spectrometer has important applications in national defense fields such as target monitoring, tracki...

AI Technical Summary

Problems solved by technology

However, the accuracy of this system is still sensitive to the lateral movement of the moving mirror of the interferometer, and the interferometer still cannot achieve hyperspectral imaging of fast-moving targets due to the limitation of the accuracy and the scanning speed of the detector integration time

Images