Mr. Karl N. Schrader Profile

Karl N. Schrader

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Author

Publications (7)

Proceedings Article | 18 December 2002 Paper

Sparse-array phasing algorithm based on recursive estimation of fringe contrast

Karl Schrader, Robert Fetner, Mark Balas, Richard Erwin

Proceedings Volume 4849, (2002) https://doi.org/10.1117/12.460570

KEYWORDS: Convolution, Error analysis, Spatial frequencies, Sensors, Wavefronts, Calibration, Fringe analysis, Telescopes, Metrology, Image segmentation

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Proceedings Article | 18 December 2002 Paper

Development of a sparse-aperture testbed for optomechanical control of space-deployable structures

Karl Schrader, Rob Fetner, Steven Griffin, Richard Erwin

Proceedings Volume 4849, (2002) https://doi.org/10.1117/12.460569

KEYWORDS: Mirrors, Image segmentation, Calibration, Metrology, Space telescopes, Control systems, Composites, Tolerancing, Imaging systems, Analytical research

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Proceedings Article | 18 December 2002 Paper

Integrated control system development for phasing and vibration suppression for a sparse-array telescope

Karl Schrader, Rob Fetner, Jed Donaldson, Robert Fuentes, Richard Erwin

Proceedings Volume 4849, (2002) https://doi.org/10.1117/12.460572

KEYWORDS: Control systems, Space telescopes, Sensors, Telescopes, Actuators, Metrology, Optical alignment, Mirrors, Calibration, Data modeling

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Proceedings Article | 28 July 2000 Paper

Experimental control of microdynamic events observed during the testing of a large deployable optical structure

Ruth Moser, R. Scott Erwin, Karl Schrader, Kevin Bell, Steven Griffin, Michael Powers

Proceedings Volume 4013, (2000) https://doi.org/10.1117/12.394007

KEYWORDS: Interferometers, Ferroelectric materials, Mirrors, Control systems, Space telescopes, Acoustics, Sensors, Device simulation, Objectives, Analytical research

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Proceedings Article | 8 December 1998 Paper

Simulation of an actively controlled white light interferometer for measurement of subwavelength structural disturbances

Karl Schrader, Lawrence Robertson

Proceedings Volume 3430, (1998) https://doi.org/10.1117/12.332483

KEYWORDS: Actuators, Modulation, Interferometers, Mirrors, Control systems, Device simulation, Optical testing, Motion models, Imaging systems, Systems modeling

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Proceedings Article | 8 December 1998 Paper

Implementation of an actively controlled white light interferometer for measurement of subwavelength structural disturbances

Karl Schrader

Proceedings Volume 3430, (1998) https://doi.org/10.1117/12.332484

KEYWORDS: Modulation, Mirrors, Actuators, Interferometers, Sensors, Signal processing, Signal detection, Control systems, Space telescopes, Light sources

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Proceedings Article | 1 December 1990 Paper

Interaction between dispersive and inhomogeneous models for interpreting spectral ellipsometric data of thin films

Charles Carniglia, Karl Schrader

Proceedings Volume 1324, (1990) https://doi.org/10.1117/12.22419

KEYWORDS: Data modeling, Thin films, Silica, Refractive index, Quantum wells, Silicon, Silicon films, Multilayers, Spectral models, Systems modeling

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Showing 5 of 7 publications

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