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

Proc. SPIE. 9982, Unconventional Imaging and Wavefront Sensing XII

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

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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

Proc. SPIE. 8037, Laser Radar Technology and Applications XVI

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

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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

Proc. SPIE. 7684, Laser Radar Technology and Applications XV

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

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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

Proc. SPIE. 7323, Laser Radar Technology and Applications XIV

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

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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

Proc. SPIE. 7323, Laser Radar Technology and Applications XIV

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

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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

Proc. SPIE. 6950, Laser Radar Technology and Applications XIII

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

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Proceedings Article | 4 May 2007 Paper

Dead-time effects on geiger-mode APD performance

Phillip Gatt, Steven Johnson, Terry Nichols

Proc. SPIE. 6550, Laser Radar Technology and Applications XII

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

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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

Proc. SPIE. 6214, Laser Radar Technology and Applications XI

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

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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

Proc. SPIE. 5791, Laser Radar Technology and Applications X

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

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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

Proc. SPIE. 5791, Laser Radar Technology and Applications X

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

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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

Proc. SPIE. 5412, Laser Radar Technology and Applications IX

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

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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

Proc. SPIE. 5240, Laser Radar Technology for Remote Sensing

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

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Proceedings Article | 21 August 2003 Paper

Analysis of Geiger-mode APD laser radars

Steven Johnson, Philip Gatt, Terry Nichols

Proc. SPIE. 5086, Laser Radar Technology and Applications VIII

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

Proc. SPIE. 5086, Laser Radar Technology and Applications VIII

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

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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

Proc. SPIE. 4723, Laser Radar Technology and Applications VII

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

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Proceedings Article | 19 September 2001 Paper

Multifrequency laser radar band selection

Terry Nichols, Steven Johnson, Charles Garvin, Philip Gatt

Proc. SPIE. 4377, Laser Radar Technology and Applications VI

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

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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

Proc. SPIE. 4377, Laser Radar Technology and Applications VI

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

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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

Proc. SPIE. 4377, Laser Radar Technology and Applications VI

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

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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

Proc. SPIE. 4153, Lidar Remote Sensing for Industry and Environment Monitoring

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

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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

Proc. SPIE. 4153, Lidar Remote Sensing for Industry and Environment Monitoring

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

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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

Proc. SPIE. 4035, Laser Radar Technology and Applications V

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

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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

Proc. SPIE. 4035, Laser Radar Technology and Applications V

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

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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

Proc. SPIE. 3380, Laser Radar Technology and Applications III

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

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Proceedings Article | 8 September 1998 Paper

Coherent lidar crosswind sensing

Philip Gatt, J. Alex Thomson, Stephen Hannon

Proc. SPIE. 3380, Laser Radar Technology and Applications III

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

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Proceedings Article | 8 September 1998 Paper

Coherent laser radar atmospheric turbulence sensor

Philip Gatt, Rod Frehlich, Stephen Hannon

Proc. SPIE. 3381, Airborne Laser Advanced Technology

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

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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

Proc. SPIE. 2956, Optics in Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing

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

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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

Proc. SPIE. 2832, Optical Instruments for Weather Forecasting

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

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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

Proc. SPIE. 2832, Optical Instruments for Weather Forecasting

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

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Proceedings Article | 16 June 1995 Paper

Laser vibration sensor

Madhu Acharekar, Philip Gatt, Lawrence Mizerka

Proc. SPIE. 2472, Applied Laser Radar Technology II

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

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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

Proc. SPIE. 2471, Atmospheric Propagation and Remote Sensing IV

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

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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

Proc. SPIE. 1936, Applied Laser Radar Technology

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

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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

Proc. SPIE. 1936, Applied Laser Radar Technology

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

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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

Proc. SPIE. 1968, Atmospheric Propagation and Remote Sensing II

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

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Showing 5 of 33 publications

Conference Committee Involvement (17)

Laser Radar Technology and Applications XXVI

11 April 2021 | Orlando, 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, Maryland, United States

Laser Radar Technology and Applications XXIII

17 April 2018 | Orlando, Florida, United States

Laser Radar Technology and Applications XXII

11 April 2017 | Anaheim, California, United States

Laser Radar Technology and Applications XXI

19 April 2016 | Baltimore, Maryland, United States

Laser Radar Technology and Applications XX

21 April 2015 | Baltimore, Maryland, United States

Laser Radar Technology and Applications XIX

6 May 2014 | Baltimore, Maryland, 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 17 Conference Committees

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