Dr. John A. Richards Profile

Dr. John A. Richards

Distinguished Member of Tech Staff at Sandia National Labs

SPIE Involvement:

Author

Proceedings Article | 17 May 2019 Paper

µChemLab: twenty years of developing CBRNE detection systems with low false alarm rates

Joshua Whiting, Edward Myers, Ronald Manginell, Matthew Moorman, Kent Pfeifer, John Anderson, Cory Fix, Cody Washburn, Alan Staton, Daniel Porter, Darin Graf, David Wheeler, John Richards, Komandoor Achuythan, Michael Roukes, Robert Simonson

Proceedings Volume 11010, 1101012 (2019) https://doi.org/10.1117/12.2518778

KEYWORDS: Sensors, Microfabrication, Resonators, Nanoelectromechanical systems, Modulators, Modulation, Ions, Microelectromechanical systems, Chemical analysis, Weapons of mass destruction

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Proceedings Article | 29 April 2009 Paper

Simulating the effects of long-range collection on synthetic aperture radar imagery

John Richards

Proceedings Volume 7337, 73370E (2009) https://doi.org/10.1117/12.818627

KEYWORDS: Signal attenuation, Synthetic aperture radar, Atmospheric modeling, Radar, Clouds, Atmospheric propagation, Interference (communication), Earth's atmosphere, Sensors, Algorithm development

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Proceedings Article | 7 May 2007 Paper

Multinomial pattern matching for high range resolution radar profiles

Melissa Koudelka, John Richards, Mark Koch

Proceedings Volume 6568, 65680V (2007) https://doi.org/10.1117/12.720873

KEYWORDS: Kinematics, Detection and tracking algorithms, Radar, Synthetic aperture radar, Statistical modeling, Statistical analysis, Data modeling, Image processing, Target detection, Sensors

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Proceedings Article | 2 September 2004 Paper

Comparison of algorithms for use in real-time spotlight-mode SAR image formation

Charles Jakowatz, Daniel Wahl, David Yocky, Brian Bray, Wallace Bow, John Richards

Proceedings Volume 5427, (2004) https://doi.org/10.1117/12.548203

KEYWORDS: Wavefronts, Image acquisition, Synthetic aperture radar, Image processing, Raster graphics, Image resolution, Image quality, Radar, Distortion, Image compression

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Proceedings Article | 12 September 2003 Paper

An informative confidence metric for ATR

John Richards, Wallace Bow, Brian Bray

Proceedings Volume 5095, (2003) https://doi.org/10.1117/12.487670

KEYWORDS: Automatic target recognition, Image analysis, Target detection, Synthetic aperture radar, Curium, Target recognition, Reliability, Lithium, Data modeling, Statistical analysis

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SPIE Journal Paper | 1 January 2002

Expectation-maximization apprach to target model generation from multiple synthetic aperture radar images

John Richards, Alan Willsky, John Fisher

OE, Vol. 41, Issue 01, (January 2002) https://doi.org/10.1117/12.10.1117/1.1417493

KEYWORDS: Data modeling, Synthetic aperture radar, Expectation maximization algorithms, 3D modeling, Scattering, Systems modeling, Error analysis, Polarimetry, Automatic target recognition, Optical engineering

Proceedings Article | 24 August 2000 Paper

Expectation-maximization approach to target model generation from multiple SAR images

John Richards, John Fisher, Alan Willsky

Proceedings Volume 4053, (2000) https://doi.org/10.1117/12.396376

KEYWORDS: Data modeling, Synthetic aperture radar, 3D modeling, Systems modeling, Automatic target recognition, Model-based design, 3D acquisition, Scattering, Detection and tracking algorithms, Solid modeling

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Proceedings Article | 13 August 1999 Paper

Target model generation from multiple SAR images

John Richards, John Fisher, Alan Willsky

Proceedings Volume 3721, (1999) https://doi.org/10.1117/12.357675

KEYWORDS: 3D modeling, Synthetic aperture radar, Scattering, Data modeling, Expectation maximization algorithms, Reflectors, Polarimetry, Systems modeling, 3D acquisition, Automatic target recognition

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Showing 5 of 8 publications

Conference Committee Involvement (5)

Geospatial Informatics, Fusion, and Motion Video Analytics VI

19 April 2016 | Baltimore, MD, United States

Geospatial Informatics, Fusion, and Motion Video Analytics V

20 April 2015 | Baltimore, MD, United States

Geospatial InfoFusion and Video Analytics IV

5 May 2014 | Baltimore, MD, United States

Geospatial InfoFusion III

2 May 2013 | Baltimore, Maryland, United States

Geospatial InfoFusion II

26 April 2012 | Baltimore, Maryland, United States

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