R.V.U. - Research

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My research interests include numerical techniques and algorithm development for image reconstruction and calibration of synthetic-aperture imaging systems, interactive data visualization, computational physics, parallel and high-performance computing.

CV : CV(html) CV(pdf)

Ph.D. Thesis
Parameterized Deconvolution for Wide-Band Radio Synthesis Imaging, Department of Physics, New Mexico Institude of Mining and Technology, Socorro, NM, USA (2010, in prep).

M.S. Thesis
A performance model and load balancer for a Parallel Monte-Carlo Cellular microphysiology simulator, Department of Computer Science and Engineering, University of California, San Diego, CA, USA (June 2004). [html / ps / pdf]. [MCell-K]

Publications

A multi-scale multi-frequency deconvolution algorithm for synthesis imaging in radio-interferometry, U.Rau, T.J.Cornwell (2010, in prep).

Advances in Calibration and Imaging Techniques in Radio Interferometry, U.Rau, S.Bhatnagar, M.A.Voronkov,T.J.Cornwell, Proceedings of the IEEE, Vol.97, No.8, p-1472, August 2009 [ps / pdf].

Monte-Carlo Image analysis in Radio Interferometry, Urvashi R.V., T.J.Cornwell, Astronomical Data Analysis Software and Systems XIV ASP Conference Series,Vol. 347,p-168, 2004 [ps / pdf].

Solving for Polarization Leakage in Radio Interferometers Using Unpolarized Sources, Bhatnagar S., Urvashi R.V., Nityananda R.,Astronomical Data Analysis Software and Systems XII ASP Conference Series, Vol. 295, p-469, 2003 [ps / pdf].

Memos / Technical Reports

Casapy Flag tool and casa::Flagger , U.Rau, CASA Programmers Note, 23 August 2007

Design of casa::TablePlot for Casapy , U.Rau, CASA Programmers Note, 18 August 2007

Multi Frequency Synthesis Imaging for the EVLA : An initial investigation , Urvashi R.V., T.J.Cornwell, S.T.Myers, EVLA Memo 101, April 2006

Monte Carlo Methods for Bayesian Image Reconstruction and Analysis in Radio Astronomy , Urvashi R.V., T.J.Cornwell, EVLA Memo 102. February 2006

Automatic RFI identification and flagging, Urvashi R.V., Rao, A. Pramesh, NCRA Technical Report No. R00202, October 1 2003 [ps / pdf].

Talks / Presentations

2009

"Feasibility of Multi-Frequency-Synthesis - for non-standard cases", Presentation to the NRAO Algorithm Research and Development Group, 16 July 2009, Socorro, USA
"Wide-Field Wide-Band Imaging in Radio Interferometry", Talk at the ATNF Student Symposium, 16 June 2009, Sydney, AU (via audio link from Socorro)
"Remote Sensing, Image Making and Radio Telescopes ", Colloquium at the New Mexico Tech Physics Department, 09 Apr 2009, Socorro, USA
"Wide-Field Wide-Band Imaging with the EVLA - initial results", Talk at the Fourth SKA Calibration and Imaging Workshop, 31 March 2009, Socorro, USA
"Multi Frequency Synthesis Imaging with Wideband EVLA data",Lunch Talk at the EVLA Advisory Committee Meeting, 19-20 March 2009, Socorro, USA

2008

"Multi-Frequency Synthesis Imaging with Multi-Scale Deconvolution (EVLA, e-MERLIN)", Talk at the Workshop on Imaging and Calibration Algorithms for EVLA, eMERLIN and ALMA, 02 December 2008, Oxford, UK (via video link from Socorro)
"Multi-Frequency Synthesis Imaging with Wide-Band (E)VLA data", Talk at the 24th Annual New Mexico Symposium, 24 October 2008, Socorro, USA
"Multi-Frequency Synthesis Imaging with Multi-Scale Deconvolution", Invited Talk at the XXIX URSI General Assembly, 15 August 2008, Chicago, USA
"Wide-Band Imaging - Algorithms and Errors", Talk at the Third SKA Calibration and Imaging Workshop, 09 April 2008, Perth, AU
"Multi-Frequency Synthesis Imaging with the EVLA - initial results from a test observation of Cygnus-A at L-Band", Wednesday Lunch Talk at the NRAO-AOC, 05 March 2008, Socorro, USA
"Multi-Frequency Synthesis Imaging with the EVLA", Tuna Lunch Talk at NRAO-CV, 29 January 2009, Charlottesville, USA

2006-2007

"Multi-Frequency Synthesis Imaging with Multi-Scale deconvolution", Talk at the Workshop on Radio Surveys Science and Techniques, 18 April 2007, Los Alamos, USA
"Multi-Frequency Synthesis Imaging with Multi-Scale deconvolution", Talk at the National Centre for Radio Astrophysics (TIFR), 17 November 2006, Pune, India
"Multi-Frequency Synthesis Imaging with Multi-Scale deconvolution", Talk at the Second SKA Calibration and Imaging Workshop, 05 December 2006, Cape Town, South Africa
"Multi-Frequency Synthesis Imaging with Multi-Scale deconvolution", Galaxy Lunch Talk at the Aistralia Telescope National Facility(ATNF), 06 June 2006, Marsfield/Sydney, AU
"Wide Bandwidth Imaging: Challenges and prospects for the EVLA and beyond" ,Talk at the URSI National Radio Science Meeting, 06 January 2006, Boulder, USA\\\\

Introductory Talks about Aperture Synthesis

Remote Sensing at its extreme

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Remote Sensing and Image Making

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OpenOffice

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