Dr. Philip Gatt Profile

Dr. Philip Gatt

Technical Fellow/Principal Research Scientist at Lockheed Martin Coherent Technologies

SPIE Involvement:

Conference Program Committee | Author

Publications (33)

Proceedings Article | 20 September 2016 Paper

Wavefront sensing for anisotropic turbulence using digital holography

Samuel Thurman, Philip Gatt, Thomas Alley

Proceedings Volume 9982, 998205 (2016) https://doi.org/10.1117/12.2237895

KEYWORDS: Wavefront sensors, Digital holography, Turbulence, Atmospheric turbulence, Wavefronts, Holograms, Zernike polynomials, Speckle, Optical simulations, Holography

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Proceedings Article | 9 June 2011 Paper

Coherent laser radar efficiency and power variance with Gaussian pointing errors

Philip Gatt, Scott Shald

Proceedings Volume 8037, 80370V (2011) https://doi.org/10.1117/12.888689

KEYWORDS: Scintillation, LIDAR, Speckle, Receivers, Error analysis, Transmitters, Signal attenuation, Picosecond phenomena, Reflectivity, Gaussian beams

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Proceedings Article | 12 May 2010 Paper

Coherent integration efficiency, diversity, and detectivity of temporally integrated random coherent LADAR signals

Philip Gatt, Don Jacob

Proceedings Volume 7684, 76840W (2010) https://doi.org/10.1117/12.854720

KEYWORDS: Signal detection, Signal to noise ratio, Interference (communication), LIDAR, Signal processing, Speckle, Electronic filtering, Picosecond phenomena, Receivers, Integration

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Proceedings Article | 9 May 2009 Paper

System performance and modeling of a bioaerosol detection lidar sensor utilizing polarization diversity

John Glennon, Terry Nichols, Phillip Gatt, Tahllee Baynard, John Marquardt, Richard Vanderbeek

Proceedings Volume 7323, 73230T (2009) https://doi.org/10.1117/12.822218

KEYWORDS: Atmospheric modeling, Sensors, Signal to noise ratio, Aerosols, LIDAR, Backscatter, Receivers, Mid-IR, Atmospheric particles, Particles

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Proceedings Article | 9 May 2009 Paper

Performance bounds of the phase gradient autofocus algorithm for synthetic aperture ladar

Phillip Gatt, Don Jacob, Bert Bradford, Joe Marron, Brian Krause

Proceedings Volume 7323, 73230P (2009) https://doi.org/10.1117/12.822216

KEYWORDS: Speckle, LIDAR, Monte Carlo methods, Image resolution, Error analysis, Synthetic aperture radar, Pulsed laser operation, Receivers, Radar, Technetium

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Proceedings Article | 17 April 2008 Paper

Overview of LMCT's advanced ladar signal simulator (ALASS)

Don Jacob, Phillip Gatt, Terry Nichols

Proceedings Volume 6950, 69500L (2008) https://doi.org/10.1117/12.798024

KEYWORDS: Sensors, Signal detection, Receivers, 3D modeling, Atmospheric propagation, Target detection, LIDAR, Speckle, 3D acquisition, Turbulence

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Proceedings Article | 4 May 2007 Paper

Dead-time effects on geiger-mode APD performance

Phillip Gatt, Steven Johnson, Terry Nichols

Proceedings Volume 6550, 65500I (2007) https://doi.org/10.1117/12.724773

KEYWORDS: Signal detection, Signal to noise ratio, Sensors, Photodetectors, Interference (communication), Quantum efficiency, LIDAR, Detection theory, Avalanche photodetectors, Monte Carlo methods

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Proceedings Article | 19 May 2006 Paper

High-resolution 3D coherent laser radar imaging

Brian Krause, Philip Gatt, Carl Embry, Joseph Buck

Proceedings Volume 6214, 62140V (2006) https://doi.org/10.1117/12.690443

KEYWORDS: Sensors, LIDAR, Cameras, 3D image processing, Receivers, Target detection, Digital filtering, Coherence imaging, Image resolution, Photography

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Proceedings Article | 19 May 2005 Paper

Coherent laser radar using eyesafe YAG laser transmitters

Robert Stoneman, Ross Hartman, Andrew Malm, Philip Gatt

Proceedings Volume 5791, (2005) https://doi.org/10.1117/12.609684

KEYWORDS: Er:YAG lasers, LIDAR, YAG lasers, Wind energy, Transmitters, Fiber lasers, Heterodyning, Oscillators, Pulsed laser operation, Semiconductor lasers

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Proceedings Article | 19 May 2005 Paper

Supercomputer based ladar signature simulator

Marc Welliver, Terry Nichols, Philip Gatt, Carla Willis, Steven Bunte

Proceedings Volume 5791, (2005) https://doi.org/10.1117/12.609693

KEYWORDS: LIDAR, Sensors, Alternate lighting of surfaces, Staring arrays, Computer architecture, MATLAB, Profiling, Receivers, Interference (communication), Interfaces

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Proceedings Article | 13 September 2004 Paper

Range precision of direct-detection laser radar systems

Steven Johnson, Terry Nichols, Philip Gatt, T.J. Klausutis

Proceedings Volume 5412, (2004) https://doi.org/10.1117/12.553991

KEYWORDS: Signal to noise ratio, LIDAR, Logic, Speckle, Data modeling, Monte Carlo methods, Interference (communication), Sensors, Signal detection, Error analysis

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Proceedings Article | 12 January 2004 Paper

Supercomputer-based advanced ladar imaging simulator (ALIS)

Duane Smith, Terry Nichols, Philip Gatt, Kotik Lee, Charles Sicking, Steven Seida, Charles Coker, Kimberly Perry, Jason Coker

Proceedings Volume 5240, (2004) https://doi.org/10.1117/12.518504

KEYWORDS: LIDAR, Atmospheric modeling, Alternate lighting of surfaces, Sensors, Atmospheric propagation, Receivers, Scattering, Backscatter, Solids, Transceivers

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Proceedings Article | 21 August 2003 Paper

Analysis of Geiger-mode APD laser radars

Steven Johnson, Philip Gatt, Terry Nichols

Proceedings Volume 5086, (2003) https://doi.org/10.1117/12.486384

KEYWORDS: Monte Carlo methods, Electrons, LIDAR, Computer simulations, Target detection, Avalanche photodetectors, Interference (communication), Receivers, Sensors, Signal processing

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Proceedings Article | 21 August 2003 Paper

Broadly tunable master/local oscillator lasers for advanced laser radar applications

Charley Hale, John Hobbs, Philip Gatt

Proceedings Volume 5086, (2003) https://doi.org/10.1117/12.488097

KEYWORDS: LIDAR, Molybdenum, Oscillators, Heterodyning, Resonators, Ferroelectric materials, Laser applications, Doppler effect, Quantum efficiency, Electronics

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Proceedings Article | 29 July 2002 Paper

Theoretical analysis of the impact of local oscillator frequency noise on a laser vibration sensor

Philip Gatt, Steven Johnson, Sammy Henderson, Charley Hale

Proceedings Volume 4723, (2002) https://doi.org/10.1117/12.476406

KEYWORDS: Time metrology, Fourier transforms, Velocity measurements, Thulium, Laser stabilization, Oscillators, Signal processing, Sensors, Servomechanisms, Continuous wave operation

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Proceedings Article | 19 September 2001 Paper

Multifrequency laser radar band selection

Terry Nichols, Steven Johnson, Charles Garvin, Philip Gatt

Proceedings Volume 4377, (2001) https://doi.org/10.1117/12.440120

KEYWORDS: Reflectivity, Signal to noise ratio, LIDAR, Surface plasmons, Detection and tracking algorithms, Metals, Target detection, Signal detection, Receivers, Monte Carlo methods

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Proceedings Article | 19 September 2001 Paper

Eye-safe coherent lidar detection using a 1.5-um Raman laser

Timothy Monarski, Stephen Hannon, Philip Gatt

Proceedings Volume 4377, (2001) https://doi.org/10.1117/12.440124

KEYWORDS: LIDAR, Sensors, Resonators, Signal processing, Raman spectroscopy, Doppler effect, Signal detection, Transceivers, Heterodyning, Semiconductor lasers

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Proceedings Article | 19 September 2001 Paper

Laser radar detection statistics: a comparison of coherent and direct-detection receivers

Philip Gatt, Sammy Henderson

Proceedings Volume 4377, (2001) https://doi.org/10.1117/12.440113

KEYWORDS: Receivers, Signal detection, Signal to noise ratio, Interference (communication), Speckle, Photodetectors, Signal processing, Sensors, Target detection, LIDAR

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Proceedings Article | 13 February 2001 Paper

Widely tunable 2-um cw local/master oscillator lasers for wind and DIAL measurements

Sammy Henderson, Charley Hale, John Hobbs, Philip Gatt, James Magee

Proceedings Volume 4153, (2001) https://doi.org/10.1117/12.417033

KEYWORDS: LIDAR, Carbon dioxide, Molybdenum, Continuous wave operation, Oscillators, Resonators, Fabry–Perot interferometers, Laser applications, Absorption, Spatial light modulators

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Proceedings Article | 13 February 2001 Paper

Tunable single-frequency near-IR lasers for DIAL applications

Sammy Henderson, John Marquardt, Timothy Carrig, Philip Gatt, Duane Smith, Charley Hale

Proceedings Volume 4153, (2001) https://doi.org/10.1117/12.417078

KEYWORDS: Optical parametric oscillators, Semiconductor lasers, Continuous wave operation, Sensors, Absorption, Molybdenum, Tunable lasers, Methane, Crystals

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Proceedings Article | 5 September 2000 Paper

Micro-Doppler lidar signals and noise mechanisms: theory and experiment

Philip Gatt, Sammy Henderson, J. Alex Thomson, Dale Bruns

Proceedings Volume 4035, (2000) https://doi.org/10.1117/12.397813

KEYWORDS: LIDAR, Velocity measurements, Turbulence, Oscillators, Sensors, Interference (communication), Data modeling, Speckle, Solids

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Proceedings Article | 5 September 2000 Paper

Eye-safe 2-um master oscillators for precision velocity measurements

Charley Hale, John Hobbs, Sammy Henderson, Philip Gatt

Proceedings Volume 4035, (2000) https://doi.org/10.1117/12.397807

KEYWORDS: LIDAR, Molybdenum, Resonators, Fabry–Perot interferometers, Continuous wave operation, Oscillators, Laser resonators, Spatial light modulators, Doppler effect, Laser applications

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Proceedings Article | 8 September 1998 Paper

Coherent laser radar atmospheric turbulence sensor

Philip Gatt, Rod Frehlich, Stephen Hannon

Proceedings Volume 3381, (1998) https://doi.org/10.1117/12.323943

KEYWORDS: Sensors, Turbulence, LIDAR, Signal to noise ratio, Monte Carlo methods, Polonium, Receivers, Device simulation, Coherence (optics), Backscatter

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Proceedings Article | 8 September 1998 Paper

Agile multiple-pulse coherent lidar for range and micro-Doppler measurement

Stephen Hannon, J. Alex Thomson, Sammy Henderson, Philip Gatt, Robert Stoneman, Dale Bruns

Proceedings Volume 3380, (1998) https://doi.org/10.1117/12.327199

KEYWORDS: LIDAR, Transmitters, Sensors, Doppler effect, Velocity measurements, Wind measurement, Monte Carlo methods, Pulsed laser operation, Laser development, Wind energy

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Proceedings Article | 8 September 1998 Paper

Coherent lidar crosswind sensing

Philip Gatt, J. Alex Thomson, Stephen Hannon

Proceedings Volume 3380, (1998) https://doi.org/10.1117/12.327215

KEYWORDS: LIDAR, Turbulence, Detection and tracking algorithms, Sensors, Aerosols, Algorithm development, Speckle, Transceivers, Computer aided design, Analytical research

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Proceedings Article | 6 January 1997 Paper

Solid-state coherent lidar technology for space-based wind measurement

Mark Phillips, Stephen Hannon, Sammy Henderson, Philip Gatt, Robert Huffaker

Proceedings Volume 2956, (1997) https://doi.org/10.1117/12.263153

KEYWORDS: LIDAR, Backscatter, Laser development, Atmospheric modeling, Wind energy, Wind measurement, Databases, Pulsed laser operation, Solid state lasers, Solid state electronics

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Proceedings Article | 21 November 1996 Paper

Airborne optical air turbulence sensor for high-precision vector wind measurement: scanning strategies

Geoffrey Wilson, J. Alex Thomson, Stephen Hannon, Sammy Henderson, Philip Gatt, Charley Hale

Proceedings Volume 2832, (1996) https://doi.org/10.1117/12.258889

KEYWORDS: Velocity measurements, Scanners, LIDAR, Wind measurement, Transceivers, Turbulence, Sensors, Error analysis, Data modeling, Doppler effect

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Proceedings Article | 21 November 1996 Paper

Autonomous lidar wind field sensor: performance predictions

Stephen Hannon, Sammy Henderson, J. Alex Thomson, Philip Gatt

Proceedings Volume 2832, (1996) https://doi.org/10.1117/12.258888

KEYWORDS: LIDAR, Atmospheric modeling, Backscatter, Sensors, Signal to noise ratio, Doppler effect, Turbulence, Visibility, Mass attenuation coefficient, Performance modeling

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Proceedings Article | 16 June 1995 Paper

Laser vibration sensor

Madhu Acharekar, Philip Gatt, Lawrence Mizerka

Proceedings Volume 2472, (1995) https://doi.org/10.1117/12.212015

KEYWORDS: Sensors, LIDAR, Receivers, Doppler effect, Semiconductor lasers, Diodes, Radar, Laser development, Calibration, Heterodyning

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Proceedings Article | 15 June 1995 Paper

Dual aperture measurements of two-km (round-trip) intensity and phase perturbations one-micrometer laser speckle propagating through a turbulent atmosphere

Philip Gatt, Thomas Costello, Dhinakarraj Gantala

Proceedings Volume 2471, (1995) https://doi.org/10.1117/12.211961

KEYWORDS: Atmospheric propagation, Speckle, Receivers, Phase shift keying, Turbulence, Motion measurement, Atmospheric turbulence, Phase modulation, Nd:YAG lasers, Transceivers

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Proceedings Article | 15 October 1993 Paper

Heterodyne laser radar array receivers for the mitigation of target-induced speckle

Philip Gatt, Wilson Perez, Dean Heimmermann, C. Martin Stickley

Proceedings Volume 1936, (1993) https://doi.org/10.1117/12.157101

KEYWORDS: Receivers, LIDAR, Speckle, Heterodyning, Laser applications, Signal processing, Composites, Iterated function systems, Statistical analysis, Radar signal processing

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Proceedings Article | 15 October 1993 Paper

Laser radar spectrum of a rotating random rough surface

Philip Gatt, Thomas Costello, Chie Vogt, C. Martin Stickley

Proceedings Volume 1936, (1993) https://doi.org/10.1117/12.157102

KEYWORDS: Speckle, LIDAR, Doppler effect, Laser applications, Statistical analysis, Signal detection, Receivers, Composites, Phase modulation, Fourier transforms

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Proceedings Article | 15 September 1993 Paper

Reciprocal path scattering from surfaces and turbulence in monostatic ladar theory

Robert Murphy, Philip Gatt, Ronald Phillips

Proceedings Volume 1968, (1993) https://doi.org/10.1117/12.154870

KEYWORDS: Turbulence, Atmospheric propagation, Backscatter, Receivers, Scattering, LIDAR, Laser scattering, Wave propagation, Multiple scattering, Solids

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Showing 5 of 33 publications

Conference Committee Involvement (20)

Laser Radar Technology and Applications XXIX

24 April 2024 | National Harbor, Maryland, United States

Laser Radar Technology and Applications XXVIII

3 May 2023 | Orlando, Florida, United States

Laser Radar Technology and Applications XXVII

5 April 2022 | Orlando, Florida, United States

Laser Radar Technology and Applications XXVI

12 April 2021 | Online Only, Florida, United States

Laser Radar Technology and Applications XXV

27 April 2020 | Online Only, California, United States

Laser Radar Technology and Applications XXIV

16 April 2019 | Baltimore, MD, United States

Laser Radar Technology and Applications XXIII

17 April 2018 | Orlando, FL, United States

Laser Radar Technology and Applications XXII

11 April 2017 | Anaheim, CA, United States

Laser Radar Technology and Applications XXI

19 April 2016 | Baltimore, MD, United States

Laser Radar Technology and Applications XX

21 April 2015 | Baltimore, MD, United States

Laser Radar Technology and Applications XIX

6 May 2014 | Baltimore, MD, United States

Laser Radar Technology and Applications XVIII

30 April 2013 | Baltimore, Maryland, United States

Laser Radar Technology and Applications XVII

24 April 2012 | Baltimore, Maryland, United States

Laser Radar Technology and Applications XVI

27 April 2011 | Orlando, Florida, United States

Laser Radar Technology and Applications XV

6 April 2010 | Orlando, Florida, United States

Laser Radar Technology and Applications XIV

15 April 2009 | Orlando, Florida, United States

Laser Radar Technology and Applications XIII

19 March 2008 | Orlando, Florida, United States

Laser Radar Technology and Applications XII

11 April 2007 | Orlando, Florida, United States

Laser Radar Technology and Applications XI

19 April 2006 | Orlando (Kissimmee), Florida, United States

Laser Radar Technology and Applications X

30 March 2005 | Orlando, Florida, United States

Showing 5 of 20 Conference Committees

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