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Proceedings Paper

ALADIN doppler wind lidar: recent advances
Author(s): Didier Morancais; Frédéric Fabre; Martin Endemann; Alain Culoma
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Paper Abstract

The Atmospheric Laser Doppler Instrument (ALADIN) is the payload of the ADM-Aeolus mission, which will provide direct measurements of global wind fields. It will determine the wind velocity component normal to the satellite velocity vector. The instrument is a direct detection Doppler Lidar operating in the UV, which will be the first of its kind in space. ALADIN comprises a high energy laser and a direct detection receiver operating on aerosol and molecular backscatter signals in parallel. The laser is all solid-state, based on Nd-YAG technology and high power laser diodes. The detector is a silicon CCD whose architecture allows on-chip accumulation of the returns, providing photon counting performance. The 1.5 m diameter telescope is lightweight, all made of silicon carbide. ALADIN is now in its final construction stage: the integration of the Flight Model is on-going. Most of the subsystems have been integrated; the payload performance and qualification test campaign will commence. This paper briefly describes the instrument design and provides insights on the development status and the results obtained so far. This regards in particular the receiver performance, the telescope development and the challenges of the laser. The Aeolus satellite is developed for the European Space Agency by EADS Astrium Satellites as prime contractor for the satellite and the instrument.

Paper Details

Date Published: 3 October 2007
PDF: 12 pages
Proc. SPIE 6750, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing III, 675014 (3 October 2007); doi: 10.1117/12.737685
Show Author Affiliations
Didier Morancais, EADS Astrium Satellites (France)
Frédéric Fabre, EADS Astrium Satellites (France)
Martin Endemann, European Space Agency ESA-ESTEC (Netherlands)
Alain Culoma, European Space Agency ESA-ESTEC (Netherlands)

Published in SPIE Proceedings Vol. 6750:
Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing III
Upendra N. Singh; Gelsomina Pappalardo, Editor(s)

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