Dr. David V. Willetts Profile

Dr. David V. Willetts

Professor at QinetiQ Ltd

SPIE Involvement:

Author

Proceedings Article | 3 April 2018 Open Access

ALADIN: an atmospheric laser Doppler wind lidar instrument for wind velocity measurements from space

R. Krawczyk, JB. Ghibaudo, JY. Labandibar, D. Willetts, M. Vaughan, G. Pearson, M. Harris, P. Flamant, P. Salamitou, A. Dabas, R. Charasse, T. Midavaine, M. Royer, H. Heimel

Proceedings Volume 10570, 105700L (2018) https://doi.org/10.1117/12.2326456

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Proceedings Article | 21 October 2005 Paper

Long range 3D active imagery with a scanned single element 1.5 μm coherent lidar system

Guy Pearson, Kevin Ridley, David Willetts

Proceedings Volume 5988, 59880M (2005) https://doi.org/10.1117/12.632788

KEYWORDS: LIDAR, 3D image processing, Spatial resolution, Receivers, Transceivers, Fiber optics, Signal processing, Clouds, Imaging systems, Diffraction

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Proceedings Article | 29 December 2004 Paper

Photoacoustic spectroscopy for remote detection of liquid contamination

Michael Harris, Brian Perrett, David Benton, David Willetts

Proceedings Volume 5617, (2004) https://doi.org/10.1117/12.577513

KEYWORDS: Liquids, Pulsed laser operation, Photoacoustic spectroscopy, Absorption, Acoustics, Gas lasers, Contamination, Carbon monoxide, Signal processing, Laser Doppler velocimetry

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Proceedings Article | 8 December 2004 Paper

ATLAS: an airborne active linescan system for high-resolution topographic mapping

David Willetts, Peter Kightley, S. Mole, Guy Pearson, P. Pearson, Adrian Coffey, Tim Stokes, Paul Tapster, M. Westwood

Proceedings Volume 5613, (2004) https://doi.org/10.1117/12.578052

KEYWORDS: Global Positioning System, Mirrors, Roads, Line scan image sensors, Scanners, LIDAR, Clouds, Head, Sensors, Airborne laser technology

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Proceedings Article | 6 August 1998 Paper

Differential pulsed photothermal radiometry for remote detection of surface contamination

David Willetts, Guy Pearson, Michael Harris, S. Clement, S. Gandhi, P. Jeffery

Proceedings Volume 3383, (1998) https://doi.org/10.1117/12.317645

KEYWORDS: Ultraviolet radiation, Thermography, Contamination, Pulsed laser operation, Absorption, Radiometry, Liquids, Optical filters, Carbon dioxide lasers, Numerical simulations

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Proceedings Article | 21 October 1996 Paper

ALADIN: an atmospheric laser Doppler wind lidar instrument for wind velocity measurements from space

Rodolphe Krawczyk, Jean-Bernard Ghibaudo, Jean-Yves Labandibar, David Willetts, M. Vaughan, Guy Pearson, Michael Harris, Pierre Flamant, P. Salamitou, Alain Dabas, F. Lieutaud, Remi Charasse, Thierry Midavaine, Michel Royer, H. Heimel

Proceedings Volume 2817, (1996) https://doi.org/10.1117/12.255180

KEYWORDS: Telescopes, Wind measurement, Space telescopes, Aerospace engineering, Velocity measurements, Doppler effect, Mirrors, LIDAR, Instrument modeling, Signal processing

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Proceedings Article | 15 December 1995 Paper

ALADIN: an atmosphere laser doppler wind lidar instrument for wind velocity measurements from space

Rodolphe Krawczyk, Jean-Bernard Ghibaudo, Jean-Yves Labandibar, David Willetts, M. Vaughan, Guy Pearson, Michael Harris, Pierre Flamant, P. Salamitou, Alain Dabas, Remi Charasse, Thierry Midavaine, Michel Royer, H. Heimel

Proceedings Volume 2581, (1995) https://doi.org/10.1117/12.228509

KEYWORDS: Telescopes, Wind measurement, Space telescopes, Aerospace engineering, Velocity measurements, Mirrors, Doppler effect, Instrument modeling, LIDAR, Signal processing

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Proceedings Article | 9 December 1994 Paper

Lifetime studies of an e-beam sustained CO2 laser for spaceborne Doppler wind lidar

Paul Schwarzenberger, Steven Wallace, R. Robinson, David Willetts, Michael Harris, Errico Armandillo, Callum Norrie

Proceedings Volume 2310, (1994) https://doi.org/10.1117/12.195864

KEYWORDS: Carbon monoxide, Carbon dioxide lasers, Gas lasers, LIDAR, Titanium, Aluminum, Pulsed laser operation, Remote sensing, Information operations, Catalysis

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Proceedings Article | 9 December 1994 Paper

CO2 laser for spaceborne Doppler wind lidar

David Willetts, Michael Harris, Errico Armandillo, Callum Norrie, Paul Schwarzenberger, Steven Wallace, Wolfgang Schaeper, Matthias Gollor, Enrico Galletti, Emanuele Stucchi

Proceedings Volume 2310, (1994) https://doi.org/10.1117/12.195863

KEYWORDS: LIDAR, Energy efficiency, Lithium, Remote sensing, Wind energy, Plasma, Doppler effect, Carbon dioxide lasers, Transformers, Near field optics

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Proceedings Article | 30 September 1994 Paper

CO2 laser technology for spaceborne doppler wind lidar

Paul Schwarzenberger, Steven Wallace, R. Robinson, David Willetts

Proceedings Volume 2210, (1994) https://doi.org/10.1117/12.188113

KEYWORDS: Pulsed laser operation, Carbon dioxide lasers, Gas lasers, Laser development, Energy efficiency, Information operations, Doppler effect, LIDAR, Carbon monoxide, Output couplers

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