Dr. Siddarayappa Bikkannavar Profile

Dr. Siddarayappa Bikkannavar

Engineer at Jet Propulsion Lab

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Publications (10)

Proceedings Article | 23 August 2024 Presentation + Paper

Wavefront sensing and control for a future Habitable Worlds Observatory

David Redding, Scott Basinger, Siddarayappa Bikkannavar, Brandon Dube, Andrew Kee, John Lou, Carl Nissly, Catherine Ohara, Philip Poon, Erkin Sidick, Jonathan Tesch, Mitchell Troy

Proceedings Volume 13092, 130921P (2024) https://doi.org/10.1117/12.3020583

KEYWORDS: Sensors, Coronagraphy, Metrology, Wavefront errors, Telescopes, Equipment, Wavefront sensors, Image segmentation, Electric fields, Wavefronts

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Proceedings Article | 23 August 2024 Poster + Paper

White light interferometry: a method for coarse phasing segmented telescopes without dedicated hardware

Mitchell Troy, Siddarayappa Bikkannavar, Andrew Kee, Catherine Ohara, Carl Nissly, Phillip Poon, David Redding, Lewis Roberts, Jonathan Tesch

Proceedings Volume 13092, 130925R (2024) https://doi.org/10.1117/12.3017676

KEYWORDS: Telescopes, Simulations, Space telescopes, Sensors, Optical interferometry, Optical instrument design, Segmented mirrors

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Proceedings Article | 23 August 2024 Presentation + Paper

Lentil: an open-source library for fast optical propagation

Andrew Kee, Mitchell Troy, Carl Nissly, Jonathan Tesch, Siddarayappa Bikkannavar, David Redding

Proceedings Volume 13099, 1309902 (2024) https://doi.org/10.1117/12.3014733

KEYWORDS: Wave propagation, Wavefronts, Fourier transforms, Simulations, Modeling, Diffraction, Aliasing, Analytics, Software, Open source software, Segmented mirrors

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Proceedings Article | 18 July 2014 Paper

Experimental validation of Advanced Dispersed Fringe Sensing (ADFS) algorithm using Advanced Wavefront Sensing and Correction Testbed (AWCT)

Xu Wang, Fang Shi, Norbert Sigrist, Byoung-Joon Seo, Hong Tang, Siddarayappa Bikkannavar, Scott Basinger, Oliver Lay

Proceedings Volume 9151, 91513N (2014) https://doi.org/10.1117/12.2056554

KEYWORDS: Free electron lasers, Calibration, Point spread functions, Algorithm development, Image segmentation, Signal processing, Wavefront sensors, Ferroelectric materials, Data analysis, Image processing

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Proceedings Article | 10 August 2010 Paper

Advanced DFS: a dispersed fringe sensing algorithm insensitive to small calibration errors

Joshua Spechler, Daniel Hoppe, Norbert Sigrist, Fang Shi, Byoung-Joon Seo, Siddarayappa Bikkannavar

Proceedings Volume 7731, 773155 (2010) https://doi.org/10.1117/12.856510

KEYWORDS: Calibration, Sensors, Monte Carlo methods, James Webb Space Telescope, Signal detection, Error analysis, Detection and tracking algorithms, Space telescopes, Wavefronts, Telescopes

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Proceedings Article | 29 July 2010 Paper

Demonstration of on sky contrast improvement using the modified Gerchberg-Saxton algorithm at the Palomar Observatory

Rick Burruss, Eugene Serabyn, Dimitri Mawet, Jennifer Roberts, Jeffrey Hickey, Kevin Rykoski, Siddarayappa Bikkannavar, Justin Crepp

Proceedings Volume 7736, 77365X (2010) https://doi.org/10.1117/12.857544

KEYWORDS: Wavefronts, Telescopes, Stars, Magnesium, Actuators, Cameras, Wavefront sensors, Coronagraphy, Speckle, Exoplanets

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Proceedings Article | 23 July 2010 Paper

Phase retrieval methods for wavefront sensing

Siddarayappa Bikkannavar, David Redding, Joseph Green, Scott Basinger, David Cohen, John Lou, Catherine Ohara, Fang Shi

Proceedings Volume 7739, 77392X (2010) https://doi.org/10.1117/12.858980

KEYWORDS: Point spread functions, Phase retrieval, Magnesium, Wavefront sensors, Error analysis, Space telescopes, Spatial frequencies, Image processing, Wavefronts, High dynamic range imaging

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Proceedings Article | 15 July 2008 Paper

Autonomous phase retrieval control for calibration of the Palomar Adaptive Optics system

Siddarayappa Bikkannavar, Catherine Ohara, Mitchell Troy

Proceedings Volume 7015, 70155K (2008) https://doi.org/10.1117/12.790676

KEYWORDS: Magnesium, Wavefronts, Adaptive optics, Actuators, Point spread functions, Calibration, Wavefront sensors, Phase retrieval, Control systems, Cameras

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Proceedings Article | 7 July 2008 Paper

Autonomous high dynamic range phase unwrapping

Siddarayappa Bikkannavar

Proceedings Volume 7017, 70171W (2008) https://doi.org/10.1117/12.790465

KEYWORDS: Image segmentation, Edge detection, Image processing, Wavefront sensors, High dynamic range imaging, Magnesium, Algorithm development, Image processing algorithms and systems, Detection and tracking algorithms, Digital image processing

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Proceedings Article | 13 September 2005 Paper

Performance of the optical communication adaptive optics testbed

Jennifer Roberts, Mitchell Troy, Malcolm Wright, Stephen Guiwits, Siddarayappa Bikkannavar, Gary Brack, Vachik Garkanian, Dean Palmer, Benjamin Platt, Tuan Truong, Kent Wallace, Keith Wilson

Proceedings Volume 5892, 589212 (2005) https://doi.org/10.1117/12.618072

KEYWORDS: Adaptive optics, Wavefronts, Turbulence, Zoom lenses, Error analysis, Calibration, Optical communications, Sensors, Servomechanisms, Signal detection

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Showing 5 of 10 publications

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