A UAV-based automatic multi-angle surface spectrum measurement system and method

Abstract

The invention relates to an unmanned aerial vehicle based multi-angle ground surface spectrum automatic measurement system and method. The automatic measurement system comprises an unmanned aerial vehicle, a spectrum cradle head, a spectrometer, a GPS and a trigger device, and is characterized in that the unmanned aerial vehicle further comprises a flight control system; the spectrometer is fixedly installed at the bottom of the unmanned aerial vehicle; the spectrum cradle head is installed at the side surface of the spectrometer and used for ensuring that an optical fiber probe is always vertical downward or keeps a fixed included angle with the vertical direction in the flying process of the unmanned aerial vehicle; the trigger device is installed on a measurement switch of the spectrometer and triggers the measurement switch according to an instruction of the flight control system so as to enable the spectrometer to operate; and the GPS is installed on the unmanned aerial vehicle and used for performing positioning and navigation on the unmanned aerial vehicle. The automatic measurement system can realize automatic and fast measurement for the spectrum of field ground objects in remote sensor field calibration, authenticity inspection and the like, and can also realize multi-angle spectrum measurement for the ground objects at different azimuth angles and different observation zenith angles.

Description

technical field [0001] The invention relates to a multi-angle surface spectrum automatic measurement system and method based on a multi-rotor unmanned aerial vehicle, which is used for automatic and rapid measurement of the field ground feature spectrum for remote sensor site calibration and authenticity inspection. Background technique [0002] For a long time, when performing satellite-to-ground synchronous calibration of satellite sensors in the field, the spectral measurement of ground objects in the calibration field is carried out manually by carrying the spectral measurement instrument on the running field. This method not only takes a long time to measure, but also is labor-intensive. . The transit time of satellites is extremely short, and only when the measurement of the entire site is completed in the shortest possible time can the "satellite-ground synchronization" be truly realized. In order to improve the efficiency of field spectrum measurement, the present i...

AI Technical Summary

Problems solved by technology

[0002] For a long time, when performing satellite-to-ground synchronous calibration of satellite sensors in the field, the spectral measurement of ground objects in the calibration field is carried out manually by carrying the spectral measurement instrument on the running field. This method not only takes a long time to measure, but also is labor-intensive.

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