This paper describes the first successful attempt to detect wake vortices axially using an on-board infrared pulsed Doppler LiDAR (light detection and ranging) is described. On-board axial detection is more complex than the classic ground-based tangential approach, because the axial air speed in vortices is low and the atmospheric particle density is reduced, yielding a poorer SNR. To provide meaningful results in such 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 SNR that is lower than other on-board state-of-the-art approaches. It was validated through flight tests.


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    Titel :

    On-board axial detection of wake vortices using a 2-m m LiDAR


    Beteiligte:
    Douxchamps, D. (Autor:in) / Lugan, S. (Autor:in) / Verschueren, Y. (Autor:in) / Mutuel, L. (Autor:in) / Macq, B. (Autor:in) / Chihara, K. (Autor:in)


    Erscheinungsdatum :

    01.10.2008


    Format / Umfang :

    3599781 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    Friedrich K-ograve / pp / Igor Smalikho et al. | AIAA | 2003