专利名称：Method and device for measuring the speed
of an aircraft by Doppler effect
发明人：Baral-Baron, Grégory,Lacondemine,
Xavier,Lahalle, Elisabeth,Fleury, Gilles
申请号：EP14176812.7申请日：20140711公开号：EP2827174A1公开日：20150121
专利附图：
摘要： The invention relates to velocity measurement of aircraft by laser Doppleranemometry, the aircraft being equipped with a LiDAR to coherent detection. According
to the invention, the measurement method comprises the following steps: - transmissionby the lidar of a laser beam (1), - reception by the lidar of a signal backscattered by theparticles (5) present on the path of the emitted beam and obtaining the correspondingheterodyne signal, - heterodyne signal processing by the processing unit which comprisesthe following substeps: - time-frequency analysis of the heterodyne signal, - estimatingthe speed of the aircraft from the time-frequency analysis, characterized in that the stepof processing the heterodyne signal comprises a statistical test of substep with: -estimation of a statistical function of the heterodyne signal RTF, - estimating a referencestatistical function RTF noise associated with the heterodyne signal, - calculating adifference between the statistical function of the RTF the heterodyne signal and thereference statistical function RTF noise.
申请人：Thales
地址：45, rue de Villiers 92200 Neuilly Sur Seine FR
国籍：FR
代理机构：Henriot, Marie-Pierre
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