| ONERA (Office National d'Etudes et de Recherches Aérospatiales) Patent applications |
| Patent application number | Title | Published |
|---|
| 20110116074 | Measurement of Speed or Vibration Characteristics Using a Lidar Device with Heterodyne Detection - A process for measuring speed or vibration characteristics using a LIDAR device allows the separation of a useful contribution and an interfering contribution in a backscattered signal. To this purpose, a phase characteristic of an optical wave emitted in the direction of a target volume is modulated. The interfering contribution, which originates from a source at a distance from the target volume, appears with variable shifts of said phase characteristic in a heterodyne detection signal. An accumulation then isolates the useful contribution, from which a result is obtained for the speed or vibration measurement. The process can be implemented with a frequency modulation or phase modulation of the optical wave. | 05-19-2011 |
| 20100258680 | ELONGATED, TORSION-DEFORMABLE AERODYNAMIC ELEMENT - The invention relates to an elongated, torsion-deformable aerodynamic element, in which the upper surface ( | 10-14-2010 |
