Dr. Thushara Gunaratne Profile

Dr. Thushara Gunaratne

at National Research Council Canada

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Publications (3)

Proceedings Article | 30 August 2022 Presentation + Paper

High contrast and high resolution sensing and correction of atmospheric turbulence without WFSs and DMs using a digital signal modulated satellite beacon and integrated photonics devices

Glen Herriot, Brent Carlson, Thushara Gunaratne, Ross Cheriton, Siegfried Janz, Christian Marois, Jean-Pierre Véran

Proceedings Volume 12185, 121850B (2022) https://doi.org/10.1117/12.2627362

KEYWORDS: Adaptive optics, Waveguides, Satellites, Modulation, Photonics, Phase measurement, Calibration, Silicon, Stars

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Proceedings Article | 13 December 2020 Paper

An end-to-end model for the correlator and beamformer of the Square Kilometer Array Mid Telescope

Thushara Gunaratne, Brent Carlson, Gianni Comoretto, Michael Rupen, Mike Pleasance

Proceedings Volume 11450, 1145002 (2020) https://doi.org/10.1117/12.2559754

KEYWORDS: Motion models, Phased arrays, Telescopes, Optical correlators, Filtering (signal processing), Signal processing, Data modeling, Signal generators, Image filtering, Electromagnetic coupling

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Proceedings Article | 31 May 2013 Paper

Rejection of interference and near-field coupled LNA-noise on FPA-fed multibeam dish antennas using 3D analog filters

Arjuna Madanayake, Chamith Wijenayake, Thushara Gunarathne, Leo Belostotski, Yongsheng Xu, Len Bruton

Proceedings Volume 8714, 871412 (2013) https://doi.org/10.1117/12.2016093

KEYWORDS: Staring arrays, Interference (communication), Antennas, Beam shaping, Optical filters, Analog electronics, Analog filtering, Receivers, 3D modeling, Filtering (signal processing)

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