Abstract
We describe the first successful attempt to axially detect wake vortices using an on-board infrared Doppler LiDAR (Light Detection And Ranging). On-board axial detection is sensibly more complex than a classic groundbased tangential approach because the axial air speed in vortices is small and the atmospheric particle density is lower, yielding a poorer SNR. In order to provide meaningful results in these unfavorable conditions we have developed a new flexible signal processing method based on a two-primitive model fitting the spectrum of the Doppler return. This new spectral estimation successfully detects wake vortices with an admissible signal to noise ratio that is below other state-of-the-art approaches. It was validated through flight tests.
The rest will be coming soon... (Awaiting peer-review publication)
| |
