Ms. Julie Smith Profile

Julie Smith

Senior Research Physicist

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 3 October 2024 Presentation + Paper

Channel selection of hybrid communication systems using machine learning

Julie Smith, Christos Christodoulou, Chadwick Lindstrom, Matthew Simone

Proceedings Volume 13147, 131470U (2024) https://doi.org/10.1117/12.3027275

KEYWORDS: Education and training, Clouds, V band, Radar, Rain, Telecommunications, Laser systems engineering, Neural networks, Visibility, Doppler effect

Read Abstract +

Proceedings Article | 12 March 2024 Presentation + Paper

Connecting the warfighter with lasers in space: the space development agency and the optical communications terminal standard

David Wayne, Stephanos Rahimzadeh, Nick Cote, Daniel Kepler, Michael Butterfield, Julie Smith, Seth Lacy

Proceedings Volume 12877, 1287712 (2024) https://doi.org/10.1117/12.3005520

KEYWORDS: Standards development, Optical communications, Forward error correction, Automatic repeat request, Telecommunications, Free space optics, Space operations, Satellites, Laser communication terminals, Laser communications

Read Abstract +

Proceedings Article | 14 September 2023 Presentation + Paper

Generalized spatial acquisition for a space-based adaptive communications node optical terminal

Todd Ulmer, Shankararaman Ramakrishnan, John Moores, Robert Murphy, Julie Smith, Seth Lacy, Michael Butterfield, Gregory Kuperman

Proceedings Volume 12413, 124130D (2023) https://doi.org/10.1117/12.2652012

KEYWORDS: Acquisition tracking and pointing, Design and modelling, Laser communication terminals, Standards development, Polarization, Optical communications, Modulation, Transmitters, Sensors, Satellites

Read Abstract +

Proceedings Article | 15 October 2012 Paper

Understanding the physics of optical deep turbulence at the Earth's boundary layer

Thomas Farrell, Darryl Sanchez, Julie Smith, Jason Holzman, Patrick Kelly, Terry Brennan, Anita Gallegos, Denis Oesch, Demos Kyrazis

Proceedings Volume 8520, 85200H (2012) https://doi.org/10.1117/12.931432

KEYWORDS: Atmospheric modeling, Turbulence, Heat flux, Kinematics, Solar radiation models, Optical turbulence, Physics, Solar energy, Clouds, Mathematical modeling

Read Abstract +

Proceedings Article | 12 August 2010 Paper

Experimental analysis of diffraction effects from a segmented MEMS deformable mirror for a closed loop adaptive optics system

Katia Shtyrkova, Loretta Arguello, Denis Oesch, Darryl Sanchez, Patrick Kelly, Carolyn Tewksbury-Christle, Julie Smith

Proceedings Volume 7816, 781608 (2010) https://doi.org/10.1117/12.861544

KEYWORDS: Microelectromechanical systems, Diffraction, Phase measurement, Data modeling, Turbulence, Adaptive optics, Linear filtering, Diffraction gratings, Actuators, Iris

Read Abstract +

Proceedings Article | 12 August 2010 Paper

An experimental study showing the effects on a standard PI controller using a segmented MEMS DM acting as a mod(lambda) device

Julie Smith, James Brown, Darryl Sanchez, Denis Oesch, Patrick Kelly, Katia Shtyrkova, Carolyn Tewksbury-Christle

Proceedings Volume 7816, 78160H (2010) https://doi.org/10.1117/12.859837

KEYWORDS: Microelectromechanical systems, Actuators, Mirrors, Adaptive optics, Wavefronts, Phase measurement, Imaging systems, Wavefront sensors, Servomechanisms, Deformable mirrors

Read Abstract +

Proceedings Article | 12 August 2009 Paper

Dynamic spatial filtering of deformable mirror commands for mitigation of the waffle mode

Kevin Vitayaudom, Darryl Sanchez, Denis Oesch, Patrick Kelly, Carolyn Tewksbury-Christle, Julie Smith

Proceedings Volume 7466, 746609 (2009) https://doi.org/10.1117/12.825409

KEYWORDS: Actuators, Adaptive optics, Spatial filters, Deformable mirrors, Phase measurement, Wavefront sensors, Optical benches, Analytical research, Wavefronts, Turbulence

Read Abstract +

Proceedings Article | 12 August 2009 Paper

Initial results from implementing and testing a MEMS adaptive optics system

Julie Smith, Darryl Sanchez, Denis Oesch, Nathan Engstrom, Loretta Arguello, Carolyn Tewksbury-Christle, Kevin Vitayaudom, Patrick Kelly

Proceedings Volume 7466, 74660F (2009) https://doi.org/10.1117/12.829941

KEYWORDS: Microelectromechanical systems, Adaptive optics, Turbulence, Scintillation, Actuators, Deformable mirrors, Telescopes, Control systems, Wavefronts, Optical design

Read Abstract +

Proceedings Article | 12 August 2009 Paper

Experimental analysis of perspective elongation effects using a laser guide star in an adaptive-optics system

Kevin Vitayaudom, Darryl Sanchez, Denis Oesch, Patrick Kelly, Carolyn Tewksbury-Christle, Julie Smith

Proceedings Volume 7466, 746604 (2009) https://doi.org/10.1117/12.825413

KEYWORDS: Adaptive optics, Laser guide stars, Wavefront sensors, Analytical research, Optical simulations, Sodium, Turbulence, Optical benches, Sensors, Telescopes

Read Abstract +

Showing 5 of 9 publications

Conference Committee Involvement (4)

Free-Space Laser Communications XXXVII

28 January 2025 | San Francisco, California, United States

Free-Space Laser Communications XXXVI

30 January 2024 | San Francisco, California, United States

Free-Space Laser Communications XXXV

30 January 2023 | San Francisco, California, United States

Free-Space Laser Communications XXXIV

25 January 2022 | San Francisco, California, United States

Keywords/Phrases

Search In:

Publication Years