Unmanned plane borne hyperspectral image detector and method with function of synchronization radiation correction

Abstract

The invention discloses an unmanned plane borne hyperspectral image detector with a function of synchronization radiation correction, and the detector comprises a target spectrum image detector and an image processor which carries out data communication with the target spectrum image detector. The target spectrum image detector comprises a camera lens, a spectrum splitter and an image detector. One end, opposite to the camera lens, of the spectrum splitter is provided with a signal collection slit. The detector also comprises a reference light collector and a curved surface reflector. The reference light collector is disposed at an upper no-shading place of an unmanned plane. The curved surface reflector is disposed at one end of the signal collection slit of the spectrum splitter. Meanwhile, the invention also provides an unmanned plane borne hyperspectral image detection method with the function of synchronization radiation correction. The detector corrects the offset of the detection data in real time, facilitates the remarkable improvement of the data calculation precision, and is especially suitable for the sweeping detection of an unmanned plane borne hyperspectral image under the varied radiation conditions.

Description

technical field [0001] The invention relates to a push-broom unmanned aerial vehicle-mounted hyperspectral image detector, more specifically to a synchrotron radiation-corrected push-broom unmanned aerial vehicle-borne hyperspectral image detector, which belongs to the technical field of spectral image detection. Background technique [0002] Hyperspectral image detection technology is the backbone technology of modern remote sensing. It has the advantages of large amount of information, high detection sensitivity, and rich detection content. It can detect traces of weak or hidden components in the target area. Its working principle is: the target object itself After emitting light or being radiated by external energy, according to the characteristics of the respective materials, it emits fluorescence, reflection, absorption, transmission, refraction and other spectra, and radiates to the surrounding space. To the ground, carry out push-broom detection on the ground target, ...

AI Technical Summary

Problems solved by technology

However, when sunlight or skylight as a light source is affected by climate and time, resulting in changes in intensity and wavelength, the radiated light of the target object also changes synchronously, resulting in a large deviation of the detection data

In order to correct this kind of radiation deviation, the correction method of inserting a reference plate and adding an independent radiometer is usually used. These methods have defects such as cumbersome structure and poor correction accuracy.

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