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Master Thesis

Spectre de vagues par LiDAR aéroporté comparé aux mesures satellitaires

Abstract : The creation of directionnal wave spectra out of airborne LiDAR data can be made using two dimensional fast Fourier transform or by using wavelet analysis. This work used Fourier transform. These spectra, contrary to satellites, need Doppler shifting corrections but can dismiss the 180° ambiguity on the wave spreading direction. In order to accomplish this correction, two methods have been explored : a point by point method and an image correction method Furthermore, airborne LiDAR directionnal wave spectra show that it possible to detect smaller wavelengths than satellites. Thus allowing the creation of finer data on a smaller zone, allowing these spectra to be effeciently used in satellite instrument calibration.
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Master Thesis
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Submitted on : Tuesday, October 6, 2020 - 4:27:38 PM
Last modification on : Thursday, February 4, 2021 - 3:12:33 AM


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  • HAL Id : dumas-02959277, version 1



Paul Ternon. Spectre de vagues par LiDAR aéroporté comparé aux mesures satellitaires. Sciences de l'ingénieur [physics]. 2019. ⟨dumas-02959277⟩



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