Dr. Nigel A. Dipper Profile

Dr. Nigel A. Dipper

at Durham Univ

SPIE Involvement:

Author

Publications (46)

Proceedings Article | 10 July 2018 Presentation

Presentation

Multi-node homogeneous Xeon Phi architecture for ELT scale Adaptive Optics RTC (Conference Presentation)

David Jenkins, Alastair Basden, Richard Myers, James Osborn, Matthew Townson, Andrew Reeves, Lazar Staykov, Edward Younger, Deli Geng, Nigel Dipper, Damien Gratadour, Arnaud Sevin, Denis Perret

Proceedings Volume 10707, 1070716 (2018) https://doi.org/10.1117/12.2313943

KEYWORDS: Adaptive optics, Real-time computing, Earth's atmosphere, Wavefronts, Telescopes, Large telescopes, Atmospheric optics, Astronomy, Diffraction, Atmospheric corrections

Read Abstract +

Adaptive Optics (AO) is a necessary technology for ensuring the success of the next generation of extremely large telescopes (ELTs). It’s used to help mitigate the perturbing effects of Earth’s atmosphere on the incoming light from astronomical objects and will be an integral part of ELTs for obtaining close to diffraction limited images. To maintain a correction of the incoming wavefront under dynamic atmospheric conditions, which can change significantly on the order of milliseconds, the frame-by-frame reconstruction must be operated in real-time, with hard limits on the time interval between measuring the disturbance and applying a correction. The main problem size for AO RTC increases with the 4th power of telescope diameter and so the computational demands of AO RTCs for ELTs, with primary mirror diameters between 20-40m, increase significantly compared to the current generation of 10m class telescopes. This makes the investigation into and the development of real-time controllers (RTCs) for ELT scale AO systems critical for ensuring the effectiveness of these instruments for first light. Green Flash, which is an ongoing EU funded project, has the aim of investigating the optimal hardware architecture for ELT scale AO RTC, with an emphasis on GPU and Xeon Phi solutions. The Intel Xeon Phi, built using Intel’s Many Integrated Core (MIC) architecture, incorporates ≥64 general purpose x86 CPU cores into a single CPU package paired with a large pool of on chip high bandwidth MCDRAM, it has many of the advantages of current technologies without some of the more significant drawbacks. The most computationally intensive aspects of most AO RTC pipelines are large matrix-vector multiplications mainly used to compute the reconstructed wavefronts which are highly parallelizable and are generally memory bandwidth bound. This makes the Xeon Phi with it’s large CPU count and high bandwidth memory ideally suited for acceleration of the reconstruction task and therefore for ELT scale AO RTC. The most recent incarnation of the Xeon Phi platform is available as a standard socketed x86 CPU allowing previous efforts made in developing CPU based RTC software to be used as a basis for a Xeon Phi based RTCs with the added advantage that any optimisations made for the MIC architecture can be carried forward to future x86 CPU based systems. The Durham Adaptive Optics Real-time Controller (DARC) is an example of a freely available, on-sky tested, fully modular, x86 CPU based AO RTC which which is ideally suited to be a basis for our investigation into ELT scale AO RTC performance. We present a proof of concept AO RTC system, in collaboration with the Green Flash project, using an optimised DARC on a multi-node homogeneous Xeon Phi cluster to demonstrate the potential of the MIC platform for AO RTC. We will present our methods of optimisation for the C based DARC for the Xeon Phi, including BIOS, kernel and OS tuning as well as considerations for multi-threading and massively parallel algorithm development.

Proceedings Article | 10 July 2018 Presentation + Paper

Presentation + Paper

An ELT scale MCAO real-time control prototype using Xeon Phi technologies

David Jenkins, Alastair Basden, Richard Myers, James Osborn, Matthew Townson, Andrew Reeves, Lazar Staykov, Edward Younger, Deli Geng, Nigel Dipper, Damien Gratadour, Arnaud Sevin, Denis Perret

Proceedings Volume 10703, 1070319 (2018) https://doi.org/10.1117/12.2312845

KEYWORDS: Real-time computing, Adaptive optics, Telescopes, Device simulation, Prototyping

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Proceedings Article | 27 July 2016 Paper

Paper

Demonstration of the suitability of GPUs for AO real-time control at ELT scales

Urban Bitenc, Alastair Basden, Nigel Dipper, Richard Myers

Proceedings Volume 9909, 99094S (2016) https://doi.org/10.1117/12.2234273

KEYWORDS: Adaptive optics, Control systems, Cameras, Software development, Data processing, Control systems, Real-time computing, Wavefront sensors, Reconstruction algorithms, Calibration, Algorithm development

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Proceedings Article | 27 July 2016 Paper

Paper

Green FLASH: energy efficient real-time control for AO

D. Gratadour, N. Dipper, R. Biasi, H. Deneux, J. Bernard, J. Brule, R. Dembet, N. Doucet, F. Ferreira, E. Gendron, M. Laine, D. Perret, G. Rousset, A. Sevin, U. Bitenc, D. Geng, E. Younger, M. Andrighettoni, G. Angerer, C. Patauner, D. Pescoller, F. Porta, G. Dufourcq, A. Flaischer, J.-B. Leclere, A. Nai, P. Palazzari, D. Pretet, C. Rouaud

Proceedings Volume 9909, 99094I (2016) https://doi.org/10.1117/12.2232642

KEYWORDS: Adaptive optics, Control systems, Real-time computing, Computing systems, Field programmable gate arrays, Prototyping, Sensors, Telecommunications, Telescopes, Tomography

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Proceedings Article | 27 July 2016 Paper

Paper

DRAGON-NG: a configurable and capable AO test-bench

Nazim Bharmal, Urban Bitenc, David Bramall, Nigel Dipper, Cornelis Dubbeldam, Andrew Reeves, Colin Dunlop, Stephen Rolt, Eddy Younger, Richard Myers

Proceedings Volume 9909, 99094B (2016) https://doi.org/10.1117/12.2231694

KEYWORDS: Adaptive optics, Interfaces, Telescopes, Control systems design, Relays, Cameras, Wavefront sensors, Stars, Device simulation, Atmospheric modeling

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Proceedings Article | 27 July 2016 Paper

Paper

Novel technology for reducing wavefront image processing latency

David Barr, Noah Schwartz, Andy Vick, John Coughlan, Rob Halsall, Alastair Basden, Nigel Dipper

Proceedings Volume 9909, 99094P (2016) https://doi.org/10.1117/12.2231416

KEYWORDS: Adaptive optics, Wavefront reconstruction, Image processing, Wavefronts, Cameras, Real-time computing, Wavefronts, Wavefront reconstruction, Image processing, Sensors, Field programmable gate arrays, Detection and tracking algorithms, Wavefront sensors

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Proceedings Article | 26 July 2016 Paper

Paper

Final two-stage MOAO on-sky demonstration with CANARY

E. Gendron, T. Morris, A. Basden, F. Vidal, D. Atkinson, U. Bitenc, T. Buey, F. Chemla, M. Cohen, C. Dickson, N. Dipper, P. Feautrier, J.-L. Gach, D. Gratadour, D. Henry, J.-M. Huet, C. Morel, S. Morris, R. Myers, J. Osborn, D. Perret, A. Reeves, G. Rousset, A. Sevin, E. Stadler, G. Talbot, S. Todd, E. Younger

Proceedings Volume 9909, 99090C (2016) https://doi.org/10.1117/12.2231432

KEYWORDS: Adaptive optics, Tomography, Adaptive optics, Sensors, Telescopes, Mirrors, Deformable mirrors, Cameras, Stars, Actuators, Infrared cameras

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Proceedings Article | 7 August 2014 Paper

Paper

Preparing for the phase B of the E-ELT MCAO module project

Emiliano Diolaiti, Carmelo Arcidiacono, Giovanni Bregoli, Reginald Christopher Butler, Matteo Lombini, Laura Schreiber, Andrea Baruffolo, Alastair Basden, Michele Bellazzini, Enrico Cascone, Paolo Ciliegi, Fausto Cortecchia, Giuseppe Cosentino, Vincenzo De Caprio, Adriano De Rosa, Nigel Dipper, Simone Esposito, Italo Foppiani, Enrico Giro, Gianluca Morgante, Richard Myers, Fabien Patru, Roberto Ragazzoni, Armando Riccardi, Marco Riva, Filippo Maria Zerbi, Mark Casali, Bernard Delabre, Norbert Hubin, Florian Kerber, Miska Le Louarn, Enrico Marchetti, Suzanne Ramsay, Stefan Stroebele, Elise Vernet

Proceedings Volume 9148, 91480Y (2014) https://doi.org/10.1117/12.2056550

KEYWORDS: Mirrors, Adaptive optics, Telescopes, Actuators, Relays, Wavefront sensors, Optical design, Sodium, Optical instrument design, Atmospheric turbulence

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Proceedings Article | 4 August 2014 Paper

Paper

Evaluation of the Xeon phi processor as a technology for the acceleration of real-time control in high-order adaptive optics systems

David Barr, Alastair Basden, Nigel Dipper, Noah Schwartz, Andy Vick, Hermine Schnetler

Proceedings Volume 9148, 91484B (2014) https://doi.org/10.1117/12.2055092

KEYWORDS: Adaptive optics, Control systems, Real-time computing, Computing systems, Wavefront reconstruction, Clocks, Matrices, Adaptive control, Wavefront sensors, Technetium

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Proceedings Article | 4 August 2014 Paper

Paper

DRAGON, the Durham real-time, tomographic adaptive optics test bench: progress and results

Andrew Reeves, Richard Myers, Timothy Morris, Alastair Basden, Nazim Bharmal, Stephen Rolt, David Bramall, Nigel Dipper, Edward Younger

Proceedings Volume 9148, 91485U (2014) https://doi.org/10.1117/12.2055415

KEYWORDS: Adaptive optics, Turbulence, Tomography, Sensors, Telescopes, Relays, Actuators, Optical testing, Wavefront sensors, Deformable mirrors

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Proceedings Article | 21 July 2014 Paper

Paper

Real-time control for the high order, wide field DRAGON AO test bench

Alastair Basden, Nazim Bharmal, Urban Bitenc, Nigel Dipper, Tim Morris, Richard Myers, Andrew Reeves, Eddy Younger

Proceedings Volume 9148, 91484F (2014) https://doi.org/10.1117/12.2055873

KEYWORDS: Adaptive optics, Cameras, Control systems, Real-time computing, Wavefront sensors, Computer simulations, Algorithm development, Calibration, Wavefront reconstruction, Interfaces

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Proceedings Article | 25 September 2012 Paper

Paper

DRAGON: a wide-field multipurpose real time adaptive optics test bench

Andrew Reeves, Richard Myers, Timothy Morris, Alastair Basden, Nazim Bharmal, Stephen Rolt, David Bramall, Nigel Dipper, Edward Younger

Proceedings Volume 8447, 84474Y (2012) https://doi.org/10.1117/12.925670

KEYWORDS: Adaptive optics, Turbulence, Relays, Tomography, Telescopes, Device simulation, Laser guide stars, Actuators, Optical design, Optical simulations

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Proceedings Article | 24 September 2012 Paper

Paper

The SALT HRS spectrograph: instrument integration and laboratory test results

D. Bramall, J. Schmoll, L. M. Tyas, P. Clark, E. Younger, R. Sharples, N. Dipper, S. Ryan, D. Buckley, J. Brink

Proceedings Volume 8446, 84460A (2012) https://doi.org/10.1117/12.925935

KEYWORDS: Spectrographs, Mirrors, Cameras, Charge-coupled devices, Sensors, Lawrencium, Optics manufacturing, Telescopes, Coating, Optical alignment

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Proceedings Article | 13 September 2012 Paper

Paper

A study of MOAO behind GLAO for EAGLE

Alastair Basden, Nazim Bharmal, Tim Butterley, Nigel Dipper, Tim Morris, Richard Myers, Andrew Reeves

Proceedings Volume 8447, 84475E (2012) https://doi.org/10.1117/12.925364

KEYWORDS: Adaptive optics, Turbulence, Tomography, Telescopes, Wavefront sensors, Deformable mirrors, Atmospheric corrections, Atmospheric sciences, Actuators, Mirrors

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Proceedings Article | 13 September 2012 Paper

Paper

Tests of open-loop LGS tomography with CANARY

Timothy Morris, Alastair Basden, Fabrice Vidal, Andrew Reeves, Eric Gendron, Richard Myers, Zoltan Hubert, Edward Younger, Andy Longmore, Matthieu Cohen, Nigel Dipper, Paul Clark, David Henry, Gérard Rousset, Stephen Todd, Fanny Chemla, David Atkinson, Jean-Michel Huet, Brian Stobie, Colin Dickson

Proceedings Volume 8447, 84470K (2012) https://doi.org/10.1117/12.926985

KEYWORDS: Tomography, Telescopes, Calibration, Adaptive optics, Control systems, Camera shutters, Wavefronts, Device simulation, Turbulence, Sensors

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Proceedings Article | 13 September 2012 Paper

Paper

An AO real-time control solution for ELT scale instrumentation and application to EAGLE

Alastair Basden, Nigel Dipper, Richard Myers, Eddy Younger

Proceedings Volume 8447, 84472S (2012) https://doi.org/10.1117/12.925377

KEYWORDS: Adaptive optics, Control systems, Computing systems, Real-time computing, Wavefront sensors, Calibration, Actuators, Tomography, Cameras, Mirrors

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Proceedings Article | 29 July 2010 Paper

Paper

A COTS high-performance real-time control system for adaptive optics

Alastair Basden, Nigel Dipper, Richard Myers

Proceedings Volume 7736, 77364N (2010) https://doi.org/10.1117/12.856415

KEYWORDS: Adaptive optics, Reconstruction algorithms, Control systems, Cameras, Wavefronts, Interfaces, Diagnostics, Calibration, Image processing, Wavefront reconstruction

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Proceedings Article | 29 July 2010 Paper

Paper

The real-time control system for the CANARY multi-object adaptive optics on-sky demonstrator

N. Dipper, A. Basden, N. Looker, E. Gendron, D. Geng, D. Gratadour, Z. Hubert, F. Vidal, R. Myers, G. Rousset, A. Sevin, E. Younger

Proceedings Volume 7736, 77364P (2010) https://doi.org/10.1117/12.857242

KEYWORDS: Real-time computing, Adaptive optics, Cameras, Field programmable gate arrays, Control systems, Sensors, Computing systems, Telescopes, Interfaces, Calibration

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Proceedings Article | 28 July 2010 Paper

Paper

EAGLE MOAO system conceptual design and related technologies

G. Rousset, T. Fusco, F. Assemat, E. Gendron, T. Morris, C. Robert, R. Myers, M. Cohen, N. Dipper, C. Evans, D. Gratadour, P. Jagourel, P. Laporte, D. Le Mignant, M. Puech, H. Schnetler, W. Taylor, F. Vidal, J.-G. Cuby, M. Lehnert, S. Morris, P. Parr-Burman

Proceedings Volume 7736, 77360S (2010) https://doi.org/10.1117/12.856586

KEYWORDS: Adaptive optics, Tomography, Actuators, Telescopes, Mirrors, Stars, Spectrographs, Calibration, Astronomical imaging, Turbulence

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Proceedings Article | 28 July 2010 Paper

Paper

Status update of the CANARY on-sky MOAO demonstrator

E. Gendron, T. Morris, Z. Hubert, R. Myers, A. Longmore, G. Rousset, G. Talbot, F. Vidal, N. Dipper, D. Gratadour, N. Looker, M. Brangier, E. Younger, A. Sevin, A. Basden, D. Perret, L. Young, D. Atkinson, F. Chemla, D. Henry, T. Butterley, P. Laporte, D. Guzman, M. Marteaud, D. Geng, N. Vedrenne, M. Harrison, T. Fusco, A. Guesalaga, C. Dunlop, S. Todd, K. Dee, C. Dickson, A. Greenaway, B. Stobie, H. Dalgarno, J. Skvarc

Proceedings Volume 7736, 77360P (2010) https://doi.org/10.1117/12.857668

KEYWORDS: Telescopes, Calibration, Adaptive optics, Tomography, Mirrors, Sensors, Actuators, Device simulation, Cameras, Deformable mirrors

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Proceedings Article | 23 July 2010 Paper

Paper

First cophasing of a segmented mirror with a tunable filter and the pyramid wavefront sensor

M. Bonaglia, E. Pinna, A. Puglisi, S. Esposito, J. C. Guerra, R. Myers, N. Dipper

Proceedings Volume 7739, 77392Y (2010) https://doi.org/10.1117/12.858192

KEYWORDS: Segmented mirrors, Telescopes, Wavefront sensors, Tunable filters, Wavefronts, Xenon, Space telescopes, Current controlled current source, Numerical simulations, Sensors

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Proceedings Article | 20 July 2010 Paper

Paper

The SALT HRS spectrograph: final design, instrument capabilities, and operational modes

D. Bramall, R. Sharples, L. Tyas, J. Schmoll, P. Clark, P. Luke, N. Looker, N. Dipper, S. Ryan, D. A. Buckley, J. Brink, S. Barnes

Proceedings Volume 7735, 77354F (2010) https://doi.org/10.1117/12.856382

KEYWORDS: Spectrographs, Charge-coupled devices, Stars, Spectral resolution, Telescopes, Astronomy, Optical design, Sensors, Optics manufacturing, Cameras

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Proceedings Article | 20 July 2010 Paper

Paper

EAGLE: a MOAO fed multi-IFU NIR workhorse for E-ELT

Jean-Gabriel Cuby, Simon Morris, Thierry Fusco, Matthew Lehnert, Philip Parr-Burman, Gerard Rousset, Jean-Philippe Amans, Stephen Beard, Ian Bryson, Mathieu Cohen, Nigel Dipper, Chris Evans, Marc Ferrari, Eric Gendron, Jean-Luc Gimenez, Damien Gratadour, Peter Hastings, Zoltan Hubert, Emmanuel Hugot, Pascal Jagourel, Philippe Laporte, Vincent Lebrun, David Le Mignant, Fabrice Madec, Richard Myers, Benoit Neichel, Tim Morris, Clelia Robert, Hermine Schnetler, Mark Swinbank, Gordon Talbot, William Taylor, Francois Vidal, Sébastien Vivès, Pascal Vola, Niraj Welikala, Martyn Wells

Proceedings Volume 7735, 77352D (2010) https://doi.org/10.1117/12.856820

KEYWORDS: Adaptive optics, Galactic astronomy, Telescopes, James Webb Space Telescope, Stars, Mirrors, Spectrographs, Near infrared spectroscopy, Wavefront sensors, Spectral resolution

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Proceedings Article | 18 September 2009 Paper

Paper

Control of deformable mirrors in MOAO using H∞ optimization

Andrés Guesalaga, Dani Guzman, Richard Myers, Tim Morris, Nigel Dipper, Alastair Basden

Proceedings Volume 7439, 74390N (2009) https://doi.org/10.1117/12.826081

KEYWORDS: Actuators, Adaptive optics, Turbulence, Wavefronts, Deformable mirrors, Wavefront sensors, Sensors, Tomography, Device simulation, Telescopes

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Proceedings Article | 18 September 2009 Paper

Paper

EAGLE: an MOAO fed multi-IFU working in the NIR on the E-ELT

Jean-Gabriel Cuby, Simon Morris, Philip Parr-Burman, Matthew Lehnert, Chris Evans, Thierry Fusco, Pascal Jagourel, David Le Mignant, Richard Myers, Gérard Rousset, Hermine Schnetler, Jean-Philippe Amans, Francois Assemat, Stephen Beard, Mathieu Cohen, Nigel Dipper, Marc Ferrari, Eric Gendron, Jean-Luc Gimenez, Peter Hastings, Zoltan Hubert, Emmanuel Hugot, Philippe Laporte, Brice Leroux, Fabrice Madec, Helen McGregor, Tim Morris, Benoit Neichel, Mathieu Puech, Clelia Robert, Stephen Rolt, Mark Swinbank, Gordon Talbot, William Taylor, Francois Vidal, Sébastien Vivès, Pascal Vola, Martyn Wells

Proceedings Volume 7439, 74390J (2009) https://doi.org/10.1117/12.829213

KEYWORDS: Adaptive optics, Telescopes, Galactic astronomy, Mirrors, Wavefront sensors, Spectrographs, Laser guide stars, Space telescopes, Stars, Turbulence

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Proceedings Article | 16 July 2008 Paper

Paper

Deformable mirror controller for open-loop adaptive optics

Dani Guzmán, Andrés Guesalaga, Richard Myers, Ray Sharples, Tim Morris, Alastair Basden, Christopher Saunter, Nigel Dipper, Laura Young, Luis Rodríguez, Marcos Reyes, Yolanda Martin

Proceedings Volume 7015, 70153X (2008) https://doi.org/10.1117/12.787677

KEYWORDS: Sensors, Adaptive optics, Deformable mirrors, Turbulence, Wavefront sensors, Tomography, Actuators, Monte Carlo methods, Optical design, Image resolution

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Proceedings Article | 14 July 2008 Paper

Paper

Optimisation of the range gating and calibration processes on the GLAS Rayleigh Laser Guide Star at the WHT

Olivier Martin, Don Carlos Abrams, Tibor Agócs, Chris Benn, Craige Bevil, Diego Cano, Nigel Dipper, Thomas Gregory, Juan Carlos Guerra, Tim Morris, Richard Myers, Sergio Picó, Samantha Rix, René Rutten, Jure Skvarc, Simon Tulloch

Proceedings Volume 7015, 70154E (2008) https://doi.org/10.1117/12.788774

KEYWORDS: Adaptive optics, Camera shutters, Telescopes, Calibration, Wavefront sensors, Laser guide stars, Cameras, Rayleigh guide stars, Mirrors, Pulsed laser operation

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Proceedings Article | 10 July 2008 Paper

Paper

CANARY: the on-sky NGS/LGS MOAO demonstrator for EAGLE

Richard Myers, Zoltán Hubert, Timothy Morris, Eric Gendron, Nigel Dipper, Aglaé Kellerer, Stephen Goodsell, Gérard Rousset, Eddy Younger, Michel Marteaud, Alastair Basden, Fanny Chemla, C. Dani Guzman, Thierry Fusco, Deli Geng, Brice Le Roux, Mark Harrison, Andrew Longmore, Laura Young, Fabrice Vidal, Alan Greenaway

Proceedings Volume 7015, 70150E (2008) https://doi.org/10.1117/12.789544

KEYWORDS: Adaptive optics, Tomography, Control systems, Wavefront sensors, Sensors, Telescopes, Device simulation, Wavefronts, Calibration, Real-time computing

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Proceedings Article | 9 July 2008 Paper

Paper

EAGLE: an MOAO fed multi-IFU in the NIR on the E-ELT

Jean-Gabriel Cuby, Simon Morris, Ian Bryson, Matthew Lehnert, Chris Evans, Thierry Fusco, Pascal Jagourel, Richard Myers, Gérard Rousset, Hermine Schnetler, Jean-Philippe Amans, Jeremy Allington-Smith, François Assemat, Steven Beard, Fanny Chemla, Robert Content, Nigel Dipper, Marc Ferrari, Eric Gendron, Jean-Luc Gimenez, Peter Hastings, Zoltan Hubert, Emmanuel Hugot, Philippe Laporte, Brice Leroux, Fabrice Madec, Benoit Neichel, Tim Morris, Eric Prieto, Mark Swinbank, Gordon Talbot, William Taylor, Francois Vidal, Sébastien Vivès, Pascal Vola, Martyn Wells

Proceedings Volume 7014, 70141K (2008) https://doi.org/10.1117/12.787682

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Target acquisition, Galactic astronomy, Control systems, Light, Spectrographs, Stars, Space telescopes

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Proceedings Article | 24 September 2007 Paper

Paper

FPGA developments for the SPARTA project: Part 3

S. Goodsell, D. Geng, E. Younger, E. Fedrigo, C. Soenke, R. Donaldson, N. Dipper, R. Myers

Proceedings Volume 6691, 669103 (2007) https://doi.org/10.1117/12.735585

KEYWORDS: Field programmable gate arrays, Switches, Signal processing, Adaptive optics, Digital signal processing, Wavefronts, Transceivers, Clocks, Switching, Sensors

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Proceedings Article | 29 June 2006 Paper

Paper

The UK FMOS spectrograph

G. Dalton, I. Lewis, D. Bonfield, A. Holmes, C. Brooks, H. Lee, I. A. Tosh, T. Froud, M. Patel, N. Dipper, C. Blackburn

Proceedings Volume 6269, 62694A (2006) https://doi.org/10.1117/12.670022

KEYWORDS: Mirrors, Spectrographs, Sensors, Cameras, Control systems, Telescopes, Collimators, Infrared spectroscopy, Spherical lenses, Distortion

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Proceedings Article | 28 June 2006 Paper

Paper

FPGA developments for the SPARTA project: Part 2

S. Goodsell, D. Geng, E. Fedrigo, C. Soenke, R. Donaldson, C. Saunter, R. Myers, A. Basden, N. Dipper

Proceedings Volume 6272, 627241 (2006) https://doi.org/10.1117/12.671646

KEYWORDS: Field programmable gate arrays, Adaptive optics, Control systems, Cameras, Charge-coupled devices, Control systems design, Sensors, Integrated optics, Neodymium, Wavefront sensors

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Proceedings Article | 28 June 2006 Paper

Paper

GLAS: engineering a common-user Rayleigh laser guide star for adaptive optics on the William Herschel Telescope

Gordon Talbot, Don Carlos Abrams, Nikolaos Apostolakos, Richard Bassom, Colin Blackburn, Maarten Blanken, Diego Cano Infantes, Alan Chopping, Kevin Dee, Nigel Dipper, Eddy Elswijk, Bernard Enthoven, Thomas Gregory, Rik ter Horst, Ron Humphreys, Jan Idserda, Paul Jolley, Sjouke Kuindersma, Richard McDermid, Tim Morris, Richard Myers, Sergio Pico, Johan Pragt, Simon Rees, Jürg Rey, Marcos Reyes, René Rutten, Ton Schoenmaker, Jure Skvarc, Niels Tromp, Simon Tulloch, Auke Veninga

Proceedings Volume 6272, 62722H (2006) https://doi.org/10.1117/12.669942

KEYWORDS: Telescopes, Adaptive optics, Control systems, Mirrors, Laser safety, Laser systems engineering, Laser guide stars, Pulsed laser operation, Charge-coupled devices, Sensors

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Proceedings Article | 28 June 2006 Paper

Paper

FMOS: the fiber multiple-object spectrograph IV: current status of OHS-based spectrograph

Fumihide Iwamuro, Toshinori Maihara, Kouji Ohta, Shigeru Eto, Michinari Sakai, Masayuki Akiyama, Masahiko Kimura, Naoyuki Tamura, Junichi Noumaru, Hiroshi Karoji, Gavin Dolton, Ian Lewis, Ian Tosh, Graham Murray, Nigel Dipper, David Robertoson, Peter Gillingham, Scott Smedley, Greg Smith, Gabriella Frost

Proceedings Volume 6269, 62691B (2006) https://doi.org/10.1117/12.671006

KEYWORDS: Spectrographs, Mirrors, Sensors, Cameras, Infrared radiation, Optical alignment, Actuators, Telescopes, Reflectivity, Temperature metrology

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Proceedings Article | 27 June 2006 Paper

Paper

FPGA cluster for high-performance AO real-time control system

Deli Geng, Stephen Goodsell, Alastair Basden, Nigel Dipper, Richard Myers, Chris Saunter

Proceedings Volume 6272, 627240 (2006) https://doi.org/10.1117/12.671434

KEYWORDS: Field programmable gate arrays, Control systems, Adaptive optics, Digital signal processing, Logic, Telecommunications, Real-time computing, Computing systems, System integration, Calibration

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Proceedings Article | 27 June 2006 Paper

Paper

SPARTA: the ESO standard platform for adaptive optics real time applications

Enrico Fedrigo, Robert Donaldson, Christian Soenke, Richard Myers, Stephen Goodsell, Deli Geng, Chris Saunter, Nigel Dipper

Proceedings Volume 6272, 627210 (2006) https://doi.org/10.1117/12.671919

KEYWORDS: Digital signal processing, Field programmable gate arrays, Adaptive optics, Standards development, Sensors, Real-time computing, Interfaces, Control systems, Switches, Computer architecture

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Proceedings Article | 25 August 2005 Paper

Paper

DARTS: a low-cost high-performance FPGA implemented real-time control platform for adaptive optics

S. Goodsell, N. Dipper, D. Geng, R. Myers, C. Saunter

Proceedings Volume 5903, 59030E (2005) https://doi.org/10.1117/12.617791

KEYWORDS: Field programmable gate arrays, Adaptive optics, Control systems, Real-time computing, Charge-coupled devices, Computer architecture, Logic, Telecommunications, Calibration, Adaptive control

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Proceedings Article | 25 August 2005 Paper

Paper

FPGA developments for the SPARTA project

S. Goodsell, E. Fedrigo, N. Dipper, R. Donaldson, D. Geng, R. Myers, C. Saunter, C. Soenke

Proceedings Volume 5903, 59030G (2005) https://doi.org/10.1117/12.617837

KEYWORDS: Field programmable gate arrays, Adaptive optics, Charge-coupled devices, Interfaces, Control systems, Logic, Standards development, Calibration, Control systems design, Telescopes

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Proceedings Article | 30 September 2004 Paper

Paper

A prototype cryogenic pick-off arm for multi-IFU spectrometers

Suzanne Ramsay Howat, David Robertson, Andrew Haslehurst, Juergen Schmoll, Philip Parr Burman, Ray Sharples, Colin Dickson, Peter Hastings, David Lee, Peter Luke, Paul McMahon, Nigel Phillips, Martyn Wells, Colin Cunnigham, Nigel Dipper, Robin Aspey

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551545

KEYWORDS: Cryogenics, Prototyping, Telescopes, Tolerancing, Astronomy, Large telescopes, Spectrographs, Manufacturing, Astronomical imaging, Space telescopes

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Proceedings Article | 30 September 2004 Paper

Paper

The VISTA IR camera

Gavin Dalton, Martin Caldwell, Kim Ward, Martin Whalley, Kevin Burke, John Lucas, Tony Richards, Marc Ferlet, Ruben Edeson, Daniel Tye, Bryan Shaughnessy, Mel Strachan, Eli Atad-Ettedgui, Melanie Leclerc, Angus Gallie, Nagaraja Bezawada, Paul Clark, Nirmal Bissonauth, Peter Luke, Nigel Dipper, Paul Berry, Will Sutherland, Jim Emerson

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551378

KEYWORDS: Cameras, Telescopes, Infrared cameras, Optical filters, Sensors, Imaging systems, Staring arrays, Mirrors, Bandpass filters, Infrared telescopes

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Proceedings Article | 30 September 2004 Paper

Paper

Cryogenic tests of volume-phase holographic gratings

Naoyuki Tamura, Graham Murray, Peter Luke, Colin Blackburn, David Robertson, Nigel Dipper, Ray Sharples, Jeremy Allington-Smith

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.550797

KEYWORDS: Diffraction, Diffraction gratings, Cryogenics, Temperature metrology, Sensors, Spectrographs, Volume holography, Holography, Monochromators, Optical testing

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Proceedings Article | 30 September 2004 Paper

Paper

The current status of the UK-FMOS spectrograph

Ian Tosh, Guy Woodhouse, Tim Froud, Allan Dowell, Mukesh Patel, Mattias Wallner, Ian Lewis, Gavin Dalton, Alan Holmes, Barney Brooks, Cyril Band, David Bonfield, Graham Murray, David Robertson, Nigel Dipper

Proceedings Volume 5492, (2004) https://doi.org/10.1117/12.551454

KEYWORDS: Cameras, Sensors, Spectrographs, Mirrors, Telescopes, Control systems design, Control systems, Manufacturing, Lenses, Multiplexers

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Proceedings Article | 29 September 2004 Paper

Paper

Wavefront sensing within the VISTA infrared camera

Paul Clark, Paul Berry, Richard Bingham, Nirmal Bissonauth, Martin Caldwell, Nigel Dipper, Colin Dunlop, David Henry, Peter Luke, Richard Myers, David Robertson

Proceedings Volume 5499, (2004) https://doi.org/10.1117/12.552033

KEYWORDS: Sensors, CCD image sensors, Cameras, Charge-coupled devices, Infrared cameras, Telescopes, Optical filters, Infrared sensors, Infrared telescopes, Wavefront sensors

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Proceedings Article | 15 September 2004 Paper

Paper

The use of object-oriented techniques and CORBA in astronomical instrumentation control systems

Nigel Dipper, Colin Blackburn

Proceedings Volume 5496, (2004) https://doi.org/10.1117/12.550121

KEYWORDS: Control systems, Spectrographs, Astronomy, Telecommunications, Human-machine interfaces, Control systems design, Software development, Astronomical instrumentation, Distributed computing, Telescopes

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Proceedings Article | 7 March 2003 Paper

Paper

Developments on the UK FMOS project for the Subaru Telescope

Ian Lewis, Gavin Dalton, Alan Holmes, Barney Brooks, Cyril Band, Ian Tosh, Guy Woodhouse, Nick Cavan, Graham Murray, David Robertson, Nigel Dipper, Peter Luke

Proceedings Volume 4841, (2003) https://doi.org/10.1117/12.461940

KEYWORDS: Telescopes, Infrared spectroscopy, Control systems design, Spectrographs, Optical instrument design, Astronomical imaging, Thermography, Optical design, Cryogenics, Infrared sensors

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Proceedings Article | 7 February 2003 Paper

Paper

NAOMI adaptive optics system for the 4.2m William Herschel Telescope

Richard Myers, Andrew Longmore, Chris Benn, David Buscher, Paul Clark, Nigel Dipper, Nathan Doble, Andrew Doel, Colin Dunlop, Xiaofeng Gao, Thomas Gregory, Ronald Humphreys, Derek Ives, Roy Oestensen, P. Peacocke, Rene Rutten, Chris Tierney, Andrew Vick, Martyn Wells, Richard Wilson, Susan Worswick, Andrew Zadrozny

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.459236

KEYWORDS: Control systems, Mirrors, Adaptive optics, Digital signal processing, Wavefront sensors, Stars, Telescopes, Cameras, Calibration, Charge-coupled devices

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Showing 5 of 46 publications

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