Mr. Didier Morancais Profile

Didier Morancais

Optical Engineer at Airbus Defence and Space Satellites

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Author

Publications (14)

Proceedings Article | 3 April 2018 Open Access

Technologies for atmospheric lidar (ATLID)

Didier Morancais, A. Marini

Proceedings Volume 10570, 105700K (2018) https://doi.org/10.1117/12.2326455

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Proceedings Article | 2 April 2018 Open Access

A demonstrator for an incoherent Doppler wind lidar receiver

F. Fabre, A. Marini, Thomas Sidler, Didier Morancais, G. Fongy, Ph. Vidal

Proceedings Volume 10570, 1057005 (2018) https://doi.org/10.1117/12.2326433

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The knowledge of wind fields for a global terrestrial coverage and accurate altitude sampling is one of the main keys for improvement of meteorological predictions and general understanding of atmosphere behaviour. The best way to recover this information is remote sensing from space using low Earth orbit satellites. The measurement principle is to analyse the Doppler shift of the flux emitted by the space instrument and backscattered by the atmosphere. One of the most promising principle for Doppler shift measurement is the direct detection which does not need local oscillators. what significantly simplifies the design of such a space-borne receiver. ESA-ESTEC initiated at early 95' a programme called "lncoherent Doppler Wind Lidar (IDWL) technologies" for the study and bread-boarding phase. MMS won this contract proposing an original concept based on the use of a Fizeau high resolution interferometer working in the UV band. coupled with an intensified CCD. This concept is patented by MMS, as well as the special CCD timing sequence that will be depicted below. The programme begun by a study of the space-borne instrument in order to identify main constraints and define the receiver as could be for a flight model. A detailed performance model was established and parametric analysis allowed to optimise the concept in order to reach required performances. This study phase finally provided the definition of a bread-board for expected performances demonstration. Moreover, the Laser Signal Simulator (LSS) which is used to simulate the Lidar echo in term of amplitude as well as frequency modulation was defined at this step. The performances of this test support equipment are of main importance for the validation of the demonstrator design and performances. The second part of the study aimed at defining the derailed design of the demonstrator and associated test support equipment as well as initiating preliminary validation experiments on most critical technologies, like Fizeau interferometer which needs particularly high thermal stability and spectral resolution. At the end of this design phase. the test bench equipment begun to be manufactured and equipment test results preliminary assessed the study phase results. After integration, the correct operation and control of the overall test bench were assessed and performance tests were undertaken . The final conclusion of this programme aimed at updating the performance simulation software in order to refine expected performances for the future flight instrument.

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Proceedings Article | 21 November 2017 Open Access

ALADIN: the first european lidar in space

Didier Morançais, Frédéric Fabre, Marc Schillinger, Jean-Claude Barthès, Martin Endemann, Alain Culoma, Yannig Durand

Proceedings Volume 10568, 1056802 (2017) https://doi.org/10.1117/12.2307984

KEYWORDS: Receivers, LIDAR, Instrument modeling, Telescopes, Spectroscopy, Electronics, Sensors, Doppler effect, Satellites, Beam splitters

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Proceedings Article | 21 November 2017 Open Access

ALADIN, the first wind lidar in space: development status

Didier Morançais, Laurent Mazuray, Jean-Claude Barthès

Proceedings Volume 10567, 1056703 (2017) https://doi.org/10.1117/12.2308091

KEYWORDS: Telescopes, Receivers, Space telescopes, Electronics, Lasers, Sensors, Mirrors, Transmitters, Instrument modeling, Spectroscopy

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Proceedings Article | 17 October 2007 Paper

ADM-Aeolus follow-on missions

Martin Endemann, Wolfgang Veith, Peter Dubock, Didier Morancais, Frederic Fabre, Richard Wimmer, Phil McGoldrick

Proceedings Volume 6744, 674404 (2007) https://doi.org/10.1117/12.737867

KEYWORDS: Satellites, Space operations, LIDAR, Doppler effect, Wind measurement, Receivers, Sensors, Knowledge management, Satellite communications, Error analysis

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Proceedings Article | 3 October 2007 Paper

ALADIN doppler wind lidar: recent advances

Didier Morancais, Frédéric Fabre, Martin Endemann, Alain Culoma

Proceedings Volume 6750, 675014 (2007) https://doi.org/10.1117/12.737685

KEYWORDS: Receivers, Satellites, Telescopes, Wind measurement, Space telescopes, Transmitters, LIDAR, Electronics, Doppler effect, Lasers

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Proceedings Article | 31 October 2005 Paper

Manufacturing of an airborne demonstrator of ALADIN: the direct detection Doppler wind lidar for ADM-Aeolus

Y. Durand, R. Meynart, M. Endemann, E. Chinal, D. Morançais, T. Schröder, O. Reitebuch

Proceedings Volume 5984, 598401 (2005) https://doi.org/10.1117/12.627789

KEYWORDS: LIDAR, Mirrors, Doppler effect, Receivers, Transmitters, Telescopes, Pulsed laser operation, Wind measurement, Satellites, Oscillators

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Proceedings Article | 4 November 2004 Paper

Results of the pre-development of ALADIN, the direct detection Doppler wind lidar for ADM/Aeolus

Yannig Durand, Roland Meynart, Alain Culoma, Didier Morancais, Frederic Fabre

Proceedings Volume 5570, (2004) https://doi.org/10.1117/12.565235

KEYWORDS: Semiconductor lasers, LIDAR, Receivers, Transmitters, Doppler effect, Spectrometers, Laser development, Atmospheric modeling, Earth's atmosphere, Manufacturing

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Proceedings Article | 2 February 2004 Paper

Predevelopment of a direct detection Doppler wind lidar for ADM/AEOLUS mission

Yannig Durand, Alain Culoma, Roland Meynart, Didier Morancais, Frederic Fabre

Proceedings Volume 5234, (2004) https://doi.org/10.1117/12.517849

KEYWORDS: Spectrometers, Receivers, LIDAR, Fabry–Perot interferometers, Sensors, Optical benches, Doppler effect, Beam splitters, Interferometers, Wind measurement

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Proceedings Article | 8 April 2003 Paper

ALADIN: the lidar instrument for the AEOLUS mission

Marc Schillinger, Didier Morancais, Frederic Fabre, Alain Culoma

Proceedings Volume 4881, (2003) https://doi.org/10.1117/12.463024

KEYWORDS: Spectrometers, Receivers, Interferometers, Sensors, Doppler effect, LIDAR, Wind measurement, Beam splitters, Polarization, Instrument modeling

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Proceedings Article | 18 September 1997 Paper

Atmospheric lidar predevelopment program (ATLID)

Didier Morancais, Andrea Marini

Proceedings Volume 3117, (1997) https://doi.org/10.1117/12.278919

KEYWORDS: Telescopes, Space telescopes, Semiconductor lasers, Clouds, LIDAR, Signal to noise ratio, Mirrors, Optical filters, Earth's atmosphere, Lasers

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Proceedings Article | 9 December 1994 Paper

Compact version of the Atmospheric Lidar Instrument (ATLID)

Didier Morancais

Proceedings Volume 2310, (1994) https://doi.org/10.1117/12.195872

KEYWORDS: Space telescopes, LIDAR, Telescopes, Sensors, Interfaces, Mirrors, Optical filters, Remote sensing, Electronics, Manufacturing

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Proceedings Article | 13 September 1994 Paper

Compact atmospheric lidar instrument (C-ATLID)

Didier Morancais, Rainer Sesselmann, Martin Hueber

Proceedings Volume 2209, (1994) https://doi.org/10.1117/12.185248

KEYWORDS: Telescopes, Space telescopes, Interfaces, Sensors, Semiconductor lasers, Optical filters, LIDAR, Atmospheric optics, Signal detection, Atmospheric particles

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Proceedings Article | 13 September 1994 Paper

Cophasing studies for an imaging multi-aperture optical space interferometer

Didier Morancais, Bertrand Calvel, Philippe Roussel

Proceedings Volume 2209, (1994) https://doi.org/10.1117/12.185274

KEYWORDS: Stars, Interferometers, Telescopes, Astronomical imaging, Sensors, Image filtering, Optical imaging, Space telescopes, Nonlinear filtering, Electronic filtering

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Showing 5 of 14 publications

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