Mr. Peter Tchoryk Profile

Peter Tchoryk

CEO at Michigan Aerospace Corp

SPIE Involvement:

Track Chair | Author

Proceedings Article | 3 May 2007 Paper

Space-based direct detection wind mission design

Thomas Zurbuchen, Richard Walker, Charles Richey, Jane Pavlich, Peter Tchoryk

Proceedings Volume 6555, 655505 (2007) https://doi.org/10.1117/12.721798

KEYWORDS: Space operations, LIDAR, Telescopes, Space telescopes, Backscatter, Doppler effect, Satellites, Weather forecasting, Aerospace engineering, Control systems

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Proceedings Article | 6 June 2006 Paper

High-altitude balloon-based wind LIDAR demonstration: from near space to space

Michael Dehring, Peter Tchoryk, Jinxue Wang

Proceedings Volume 6220, 62200P (2006) https://doi.org/10.1117/12.669262

KEYWORDS: Space telescopes, LIDAR, Telescopes, Doppler effect, Aerospace engineering, Fabry–Perot interferometers, Interferometers, Wind measurement, Space operations, Satellites

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Proceedings Article | 30 May 2006 Paper

3D sensor algorithms for spacecraft pose determination

John Trenkle, Peter Tchoryk, Greg Ritter, Jane Pavlich, Aaron Hickerson

Proceedings Volume 6220, 62200D (2006) https://doi.org/10.1117/12.669260

KEYWORDS: Sensors, Data modeling, 3D modeling, Space operations, 3D acquisition, Solid modeling, Algorithm development, Satellites, Image processing, Detection and tracking algorithms

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Researchers at the Michigan Aerospace Corporation have developed accurate and robust 3-D algorithms for pose determination (position and orientation) of satellites as part of an on-going effort supporting autonomous rendezvous, docking and space situational awareness activities. 3-D range data from a LAser Detection And Ranging (LADAR) sensor is the expected input; however, the approach is unique in that the algorithms are designed to be sensor independent. Parameterized inputs allow the algorithms to be readily adapted to any sensor of opportunity. The cornerstone of our approach is the ability to simulate realistic range data that may be tailored to the specifications of any sensor. We were able to modify an open-source raytracing package to produce point cloud information from which high-fidelity simulated range images are generated. The assumptions made in our experimentation are as follows: 1) we have access to a CAD model of the target including information about the surface scattering and reflection characteristics of the components; 2) the satellite of interest may appear at any 3-D attitude; 3) the target is not necessarily rigid, but does have a limited number of configurations; and, 4) the target is not obscured in any way and is the only object in the field of view of the sensor. Our pose estimation approach then involves rendering a large number of exemplars (100k to 5M), extracting 2-D (silhouette- and projection-based) and 3-D (surface-based) features, and then training ensembles of decision trees to predict: a) the 4-D regions on a unit hypersphere into which the unit quaternion that represents the vehicle [Q_X, Q_Y, Q_Z, Q_W] is pointing, and, b) the components of that unit quaternion. Results have been quite promising and the tools and simulation environment developed for this application may also be applied to non-cooperative spacecraft operations, Autonomous Hazard Detection and Avoidance (AHDA) for landing craft, terrain mapping, vehicle guidance, path planning and obstacle avoidance.

Proceedings Article | 13 September 2004 Paper

Molecular optical air data system (MOADS) prototype II

Christopher Watkins, Charles Richey, Pete Tchoryk, Greg Ritter, Michael Dehring, Paul Hays, Carl Nardell, Russell Urzi

Proceedings Volume 5412, (2004) https://doi.org/10.1117/12.541386

KEYWORDS: Prototyping, Laser stabilization, Error analysis, Telescopes, Velocity measurements, Fabry–Perot interferometers, Aerosols, Laser scattering, Sensors, Signal detection

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Proceedings Article | 30 August 2004 Paper

Low-cost mission architecture for global tropospheric wind measurements

Carl Nardell, James Wertz, Michael Dehring, Peter Tchoryk

Proceedings Volume 5419, (2004) https://doi.org/10.1117/12.544653

KEYWORDS: Space operations, Space telescopes, Telescopes, Wind measurement, Satellites, LIDAR, Doppler effect, Atmospheric modeling, High power lasers, Large telescopes

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Proceedings Article | 30 August 2004 Paper

Advancements in KC-135 microgravity testing of an autonomous satellite docking system

Anthony Hays, Peter Tchoryk, Jane Pavlich, Gregory Wassick

Proceedings Volume 5419, (2004) https://doi.org/10.1117/12.539810

KEYWORDS: Satellites, Sensors, Video, Cameras, Aerospace engineering, Prototyping, Interfaces, Space operations, Kinematics, Aluminum

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Proceedings Article | 30 August 2004 Paper

Advancements in design of an autonomous satellite docking system

Anthony Hays, Peter Tchoryk, Jane Pavlich, Greg Ritter, Gregory Wassick

Proceedings Volume 5419, (2004) https://doi.org/10.1117/12.537767

KEYWORDS: Interfaces, Head, Satellites, Space operations, Aerospace engineering, Prototyping, Content addressable memory, Kinematics, Optical spheres, Space reconnaissance

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Proceedings Article | 21 August 2003 Paper

Molecular optical air data system (MOADS) flight experiment

Christopher Watkins, Charles Richey, Peter Tchoryk, Greg Ritter, Paul Hays, Carl Nardell, Theodore Willis, Russell Urzi

Proceedings Volume 5086, (2003) https://doi.org/10.1117/12.485944

KEYWORDS: Head, Prototyping, Fabry–Perot interferometers, Interferometers, Velocity measurements, Sensors, Telescopes, Aerosols, Optical filters, Space telescopes

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Proceedings Article | 5 August 2003 Paper

Dynamic simulation and validation of a satellite docking system

Anthony Hays, Peter Tchoryk, Jane Pavlich, Gregory Wassick

Proceedings Volume 5088, (2003) https://doi.org/10.1117/12.497150

KEYWORDS: Data modeling, Prototyping, Space operations, Computer simulations, Aerospace engineering, Satellites, Solids, Sensors, Finite element methods, Interfaces

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Proceedings Article | 5 August 2003 Paper

KC-135 zero-G testing of a microsatellite docking mechanism

Jane Pavlich, Peter Tchoryk, Anthony Hays, Gregory Wassick

Proceedings Volume 5088, (2003) https://doi.org/10.1117/12.497845

KEYWORDS: Satellites, Aerospace engineering, Head, Space operations, Data modeling, Prototyping, Interfaces, Data acquisition, Tolerancing, Sensors

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Proceedings Article | 19 September 2001 Paper

Molecular optical air data system (MOADS)

Peter Tchoryk, Christopher Watkins, Scott Lindemann, Paul Hays, Carl Nardell

Proceedings Volume 4377, (2001) https://doi.org/10.1117/12.440108

KEYWORDS: Wind measurement, Aerosols, Laser scattering, Signal detection, Prototyping, Aerospace engineering, LIDAR, Light scattering, Atmospheric modeling, Scattering

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Proceedings Article | 1 August 1991 Paper

Passive and active sensors for autonomous space applications

Peter Tchoryk, Kurt Gleichman, Dwayne Carmer, Yuji Morita, Milton Trichel, R. Kent Gilbert

Proceedings Volume 1479, (1991) https://doi.org/10.1117/12.44529

KEYWORDS: Sensors, LIDAR, Space operations, Mars, Charge-coupled devices, Synthetic aperture radar, Radar, Surveillance, Spatial resolution, Image processing

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Proceedings Article | 1 August 1991 Paper

Application of laser radar to autonomous spacecraft landing

Kurt Gleichman, Peter Tchoryk, Robert Sampson

Proceedings Volume 1416, (1991) https://doi.org/10.1117/12.43734

KEYWORDS: Sensors, LIDAR, Modulation, Signal to noise ratio, Mars, Phase shift keying, Navigation systems, Signal detection, Spatial resolution, Image segmentation

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