Ms. Anna Hecht Gnacek Profile

Anna Hecht Gnacek

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Publications (5)

Proceedings Article | 5 June 2024 Presentation + Paper

Development of a beam steering device for LiDAR-based spacecraft hazard avoidance and landing missions

Anna Gnacek, Paul McManamon, Eddie Ruff, Alexander Cain, Farzin Amzajerdian

Proceedings Volume 13049, 130490N (2024) https://doi.org/10.1117/12.3022637

KEYWORDS: Beam steering, LIDAR, Prisms, Optical components, Lenses, Space operations

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Proceedings Article | 5 June 2024 Presentation + Paper

Characterization of discrete amplification photon detector (DAPD) for long-range LiDAR applications

Ming Wei, Cullen Bradley, Anna Gnacek, Andrew Sarangan, Paul McManamon

Proceedings Volume 13049, 130490M (2024) https://doi.org/10.1117/12.3013526

KEYWORDS: Sensors, LIDAR, Signal detection, Photodetectors, Background noise, Dark current, Avalanche photodetectors, Pulse signals, Pulsed laser operation, Negative feedback

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SPIE Journal Paper | 5 August 2021 Open Access

Toward snapshot correction of 3D flash LiDAR imagers

Andrew Reinhardt, Cullen Bradley, Anna Hecht, Paul McManamon

OE, Vol. 60, Issue 08, 083101, (August 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.8.083101

KEYWORDS: 3D image processing, Imaging systems, LIDAR, Nonuniformity corrections, 3D acquisition, Photons, Image filtering, Image processing, Cameras, Sensors

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Proceedings Article | 12 April 2021 Presentation + Paper

Thermal drift compensation in dark-frame non-uniformity correction for an InGaAs PIN 3D flash lidar camera

Anna Hecht, Andrew Reinhardt, Cullen Bradley, Paul McManamon

Proceedings Volume 11744, 117440B (2021) https://doi.org/10.1117/12.2585794

KEYWORDS: Nonuniformity corrections, Cameras, LIDAR, Indium gallium arsenide, Stereoscopic cameras, Pulsed laser operation, PIN photodiodes, Calibration, Unmanned vehicles, Thermoelectric materials

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SPIE Journal Paper | 18 February 2021 Open Access

Windowed region-of-interest non-uniformity correction and range walk error correction of a 3D flash LiDAR camera

Andrew Reinhardt, Cullen Bradley, Anna Hecht, Paul McManamon

OE, Vol. 60, Issue 02, 023103, (February 2021) https://doi.org/10.1117/12.10.1117/1.OE.60.2.023103

KEYWORDS: Cameras, Nonuniformity corrections, LIDAR, Staring arrays, Stereoscopic cameras, Sensors, Pulsed laser operation, Data corrections, Optical engineering, Error analysis

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