Share Email Print
cover

Proceedings Paper

Development of an airborne wind measurement system
Author(s): Hamaki Inokuchi; Eiichi Endo; Toshiyuki Ando; Kimio Asaka; Hisamichi Tanaka; Yoshihito Hirano
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Accidents to airliners caused by air turbulence have been increasing in recent years. At present there is no sure way of avoiding encounters with clear air turbulence (CAT) because conventional airborne weather radars cannot detect turbulence in clear conditions. The Japan Aerospace Exploration Agency (JAXA) is therefore developing a Doppler LIDAR (Light Detection and Ranging) which can measure wind speeds ahead of an aircraft even in clear air. Turbulence prediction in flight has already been demonstrated using experimental Doppler LIDARs, and the latest prototype aims at turbulence detection up to 5 nautical miles (9 km) ahead at jet airliner cruising altitudes. Wind velocity measurement by LIDAR is difficult at high altitude because of low aerosol particle density. Regular atmospheric observation flights are therefore being made to establish the basic specifications of a practical device. Furthermore, since air turbulence information should be displayed on the flight deck, a graphical turbulence display is also being studied. This paper describes the development of the airborne wind measurement system and presents examples of flight experiment results.

Paper Details

Date Published: 28 August 2009
PDF: 12 pages
Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 738205 (28 August 2009); doi: 10.1117/12.836606
Show Author Affiliations
Hamaki Inokuchi, Japan Aerospace Exploration Agency (Japan)
Eiichi Endo, Japan Aerospace Exploration Agency (Japan)
Toshiyuki Ando, Mitsubishi Electric Corp. (Japan)
Kimio Asaka, Mitsubishi Electric Corp. (Japan)
Hisamichi Tanaka, Mitsubishi Electric Corp. (Japan)
Yoshihito Hirano, Mitsubishi Electric Corp. (Japan)


Published in SPIE Proceedings Vol. 7382:
International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging
Farzin Amzajerdian; Chun-qing Gao; Tian-yu Xie, Editor(s)

© SPIE. Terms of Use
Back to Top