Ms. Charmaine Cisneros Franck Profile

Charmaine Cisneros Franck

Sr. Electronics Engineer/RF Electromagnetics Engr at NASA Langley Research Ctr

SPIE Involvement:

Conference Program Committee | Author

Publications (16)

Proceedings Article | 21 October 2015 Paper

An enhanced MMW and SMMW/THz imaging system performance prediction and analysis tool for concealed weapon detection and pilotage obstacle avoidance

Steven Murrill, Eddie Jacobs, Charmaine Franck, Douglas Petkie, Frank De Lucia

Proceedings Volume 9651, 965104 (2015) https://doi.org/10.1117/12.2216085

KEYWORDS: Imaging systems, Sensors, Signal to noise ratio, Performance modeling, Target detection, Signal attenuation, Contrast transfer function, Atmospheric modeling, Extremely high frequency, Backscatter

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Proceedings Article | 27 October 2011 Paper

Enhanced terahertz imaging system performance analysis and design tool for concealed weapon identification

Steven Murrill, Charmaine Franck, Richard Espinola, Douglas Petkie, Frank De Lucia, Eddie Jacobs

Proceedings Volume 8188, 81880J (2011) https://doi.org/10.1117/12.898371

KEYWORDS: Imaging systems, Sensors, Terahertz radiation, Performance modeling, Receivers, Atmospheric modeling, Target detection, Atmospheric sensing, Signal attenuation, Detector arrays

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Proceedings Article | 10 May 2007 Paper

Advanced terahertz imaging system performance model for concealed weapon identification

Steven Murrill, Brian Redman, Richard Espinola, Charmaine Franck, Douglas Petkie, Frank De Lucia, Eddie Jacobs, Steven Griffin, Carl Halford, Joe Reynolds

Proceedings Volume 6549, 654902 (2007) https://doi.org/10.1117/12.723032

KEYWORDS: Imaging systems, Terahertz radiation, Performance modeling, Sensors, Reflectivity, Receivers, Aluminum, Target detection, Specular reflections, Atmospheric modeling

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Proceedings Article | 4 May 2007 Paper

Terahertz standoff imaging testbed design and performance for concealed weapon and device identification model development

Charmaine Franck, Dave Lee, Richard Espinola, Steven Murrill, Eddie Jacobs, Steve Griffin, Douglas Petkie, Joe Reynolds

Proceedings Volume 6549, 654908 (2007) https://doi.org/10.1117/12.723764

KEYWORDS: Terahertz radiation, Mirrors, Imaging systems, Receivers, Performance modeling, Sensors, Data acquisition, Target acquisition, Atmospheric modeling, Weapons

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Proceedings Article | 19 May 2006 Paper

Concealed weapon identification using terahertz imaging sensors

Eddie Jacobs, Steve Moyer, Charmaine Franck, Frank DeLucia, Corey Casto, Douglas Petkie, Steven Murrill, Carl Halford

Proceedings Volume 6212, 62120J (2006) https://doi.org/10.1117/12.666597

KEYWORDS: Sensors, Weapons, Contrast transfer function, Image sensors, Millimeter wave imaging, Imaging systems, Infrared imaging, Infrared radiation, Spatial frequencies, Receivers

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Proceedings Article | 7 November 2005 Paper

Terahertz imaging system performance model for concealed weapon identification

Steven Murrill, Eddie Jacobs, Steven Moyer, Carl Halford, Steven Griffin, Frank De Lucia, Douglas Petkie, Charmaine Franck

Proceedings Volume 5989, 59891E (2005) https://doi.org/10.1117/12.630877

KEYWORDS: Sensors, Performance modeling, Imaging systems, Terahertz radiation, Modulation transfer functions, Eye, Atmospheric modeling, Target detection, Contrast transfer function, Reflectivity

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Proceedings Article | 7 November 2005 Paper

Active and passive millimeter- and sub-millimeter-wave imaging

Douglas Petkie, Frank De Lucia, Corey Castro, Paul Helminger, Eddie Jacobs, Steven Moyer, Steve Murrill, Carl Halford, Steve Griffin, Charmaine Franck

Proceedings Volume 5989, 598918 (2005) https://doi.org/10.1117/12.638982

KEYWORDS: Imaging systems, Scattering, Sensors, Mirrors, Performance modeling, Systems modeling, Receivers, Heterodyning, Signal attenuation, Millimeter wave imaging

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Proceedings Article | 13 August 2002 Paper

Reduced-size spiral antenna design using dielectric overlay loading for use in ground penetrating radar and design of alternative antennas using Vivaldi radiators

Donald Paolino, Michael Neel, Charmaine Franck

Proceedings Volume 4742, (2002) https://doi.org/10.1117/12.479092

KEYWORDS: Antennas, Dielectrics, Free space, Ground penetrating radar, General packet radio service, Stars, Land mines, Polarization, Mining, Warfare

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Proceedings Article | 13 August 2002 Paper

Archimedean-spiral and log-spiral antenna comparison

Peter Lacko, Charmaine Franck, Matthew Johnson, James Ralston, Marshall Bradley, Robert McCummins

Proceedings Volume 4742, (2002) https://doi.org/10.1117/12.479093

KEYWORDS: Antennas, General packet radio service, Polarization, Land mines, Scattering, Electronics, Ground penetrating radar, Radar, Fourier transforms, Network security

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Proceedings Article | 15 August 2001 Paper

First-order design and application of a coplanar waveguide matching network for a field emitter array using the microwave-to-optical transformation (MOT) method

Charmaine Franck, Jose Velazco

Proceedings Volume 4371, (2001) https://doi.org/10.1117/12.436936

KEYWORDS: Waveguides, Microwave radiation, Finite element methods, Dielectrics, Thin films, Silicon, Capacitance, Chemical elements, Signal attenuation, Visualization

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Proceedings Article | 17 July 2000 Paper

Dynamic MRTD simulation

Eddie Jacobs, Jae Cha, Timothy Edwards, Charmaine Franck

Proceedings Volume 4030, (2000) https://doi.org/10.1117/12.391790

KEYWORDS: Minimum resolvable temperature difference, Optical simulations, Sensors, Imaging systems, Modulation transfer functions, Motion measurement, Systems modeling, Video, Target detection, Spatial frequencies

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Proceedings Article | 1 July 1999 Paper

Extended microwave-to-optical transformation (MOT) method for electric field analysis of microwave circuits and components

Charmaine Franck, Jerome Franck, Lewis DeSandre

Proceedings Volume 3702, (1999) https://doi.org/10.1117/12.351216

KEYWORDS: Waveguides, Microwave radiation, Thin films, Finite element methods, Interfaces, Transformers, Dielectrics, Magnetism, Multilayers, Free space

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Proceedings Article | 31 May 1996 Paper

Evaluation of FLIR/IR camera technology for airport surface surveillance

Rick Castaldo, Charmaine Franck, Alexander Smith

Proceedings Volume 2736, (1996) https://doi.org/10.1117/12.241047

KEYWORDS: Cameras, Infrared cameras, Surveillance, Imaging systems, Radar, Forward looking infrared, Safety, Infrared imaging, Sensors, Night vision

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Proceedings Article | 1 March 1996 Paper

Concepts for advanced aluminum welding adaptation techniques for the chemical oxygen iodine laser (coil)

Charmaine Franck

Proceedings Volume 2713, (1996) https://doi.org/10.1117/12.234204

KEYWORDS: Chemical oxygen iodine lasers, Aluminum, Laser welding, Nd:YAG lasers, Fiber optics, Carbon dioxide lasers, Satellites, Laser systems engineering, Reflectivity, Continuous wave operation

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Proceedings Article | 31 March 1995 Paper

Fluid mechanic investigations for O2(1Delta) jet generators

Charmaine Franck, Wolfgang Schall

Proceedings Volume 2502, (1995) https://doi.org/10.1117/12.204928

KEYWORDS: Liquids, Aerodynamics, Mechanics, Velocity measurements, Gas lasers, Hydrogen, Information operations, Chemical lasers, Oxygen, Manufacturing

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Proceedings Article | 1 December 1991 Paper

Preliminary study of the admittance diagram as a useful tool in the design of stripline components at microwave frequencies

Charmaine Franck, Jerome Franck

Proceedings Volume 1527, (1991) https://doi.org/10.1117/12.48658

KEYWORDS: Thin films, Microwave radiation, Phase shifts, Reflectivity, Optical design, Glasses, Optical engineering, Refractive index, Multilayers, Thin film coatings

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