dr.ir. A. Sardarabadi

PhD student
Circuits and Systems (CAS), Department of Microelectronics

PhD thesis (Jun 2016): Covariance matching techniques for radio astronomy - calibration and imaging
Promotor: Alle-Jan van der Veen

Expertise: Radio astronomy

Themes: Signal processing for communication

Biography

Millad Sardarabadi is a PhD student working on the NWO "Signal processing for radio astronomy" project with Alle-Jan van der Veen. He finished his MSc thesis in June 2011.

Projects history

Radio astronomical calibration and imaging techniques

New, larger and more complex radio telescopes bring new challenges. Foremost among these is the calibration of the data in order to remove atmospheric and instrumental effects which corrupt the exceedingly faint signals from cosmic sources.

Blind source separation, subspace estimation, and factor analysis

Factor Analysis and extensions

Matlab code for very efficient computation of the FA decomposition: R = A A' + D (low rank plus diagonal).

Software, Jul 2017

  1. Complex Factor Analysis and Extensions
    A.M. Sardarabadi; A.J. van der Veen;
    IEEE Tr. Signal Processing,
    Volume 66, Issue 4, February 2018. DOI: 10.1109/TSP.2017.2780047
    documentsoftware

  2. Signal Processing for Radio Astronomy
    A.J. van der Veen; S.J. Wijnholds; A.M. Sardarabadi;
    In Handbook of Signal Processing Systems, 3rd ed.,
    Springer, November 2018. ISBN 978-3-319-91734-4. DOI: 10.1007/978-3-319-91734-4
    document
    Springer site

  3. Efficient Calibration of Radio Interferometers Using Block LDU Decomposition
    A.M. Sardarabadi; A.J. van der Veen; L. Koopmans;
    In EUSIPCO 2018,
    Rome (IT), Eurasip, September 2018.

  4. Constrained Least Squares for Extended Complex Factor Analysis
    A. Mouri Sardarabadi; A.J. van der Veen; L. Koopmans;
    In IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM2018),
    Sheffield (UK), IEEE, July 2018. ISSN: 2151-870X.
    document

  5. Joint Extended Factor Analysis
    A.M. Sardarabadi; A.J. van der Veen;
    In 51st Asilomar Conf. on Signals, Systems and Computers,
    Asilomar (CA), IEEE, October 2017.

  6. Spatial Filtering of RF Interference in Radio Astronomy Using a Reference Antenna Array
    A.M. Sardarabadi; A.J. van der Veen; A.J. Boonstra;
    IEEE Tr. Signal Processing,
    Volume 64, Issue 2, pp. 432-447, January 2016. DOI: 10.1109/TSP.2015.2483481
    document

  7. Radioastronomical image reconstruction with regularized least squares
    S. Naghibzadeh; A.M. Sardarabadi; A.J. van der Veen;
    In Int. Conf. Audio Speech Signal Proc. (ICASSP),
    Shanghai (China), IEEE, March 2016.
    document

  8. Point and Beam-Sparse Radio Astronomical Source Recovery Using Non-Negative Least Squares
    S. Naghibzadeh; A.M. Sardarabadi; A.J. van der Veen;
    In IEEE Workshop on Sensor Array Multichannel,
    Sao Paulo, Brazil, July 2016.
    document

  9. Covariance matching techniques for radio astronomy calibration and imaging
    A.M. Sardarabadi;
    PhD thesis, TU Delft, Fac. EEMCS, June 2016. ISBN 978-94-6186-670-7.
    document

  10. Radio astronomical image formation using constrained least squares and Krylov subspaces
    A.M. Sardarabadi; A. Leshem; A.J. van der Veen;
    Astronomy and Astrophysics,
    October 2015. DOI: 10.1051/0004-6361/201526214
    document

  11. Joint Extended Factor Analysis
    A.M. Sardarabadi; A.J. van der Veen;
    In 19th International ITG Workshop on Smart Antennas (WSA),
    Ilmenau, Germany, March 2015.
    document

  12. Computationally efficient Radio Astronomical Image Formation using Constrained Least Squares and and the MVDR beamformer
    A.M. Sardarabadi; A. Leshem; A.J. van der Veen;
    In Proc. Int. Conf. Acoustics, Speech, Signal Proc. (ICASSP 2015),
    Brisbane (Australia), IEEE, May 2015.
    document

  13. Application of Krylov based methods in calibration for radio astronomy
    A.M. Sardarabadi; A.J. van der Veen;
    In Sensor Array and Multichannel Signal Processing Workshop (SAM),
    A Coruna (Spain), IEEE, pp. 153-156, June 2014.
    document

  14. Constrained Imaging for Radio Astronomy
    A.M. Sardarabadi; A.J. van der Veen;
    In Proc. 5th IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP 2013),
    St. Maarten (Dutch Antilles), December 2013.
    document

  15. Factor Analysis as a Tool for Signal Processing
    S.J. Wijnholds; A.M. Sardarabadi; A.J. van der Veen;
    In Proceedings of the International BASP Frontiers Workshop 2013,
    Villars-sur-Ollon (Switzerland), pp. 51, January 2013.
    document

  16. Subspace estimation using factor analysis
    A.M. Sardarabadi; A.J. van der Veen;
    In Sensor Array and Multichannel Signal Processing Workshop (SAM),
    Hoboken (NJ), IEEE, pp. 477-480, June 2012. ISSN 1551-2282. DOI: 10.1109/SAM.2012.6250543
    document

BibTeX support

Last updated: 26 Dec 2018

Millad Sardarabadi

Alumnus
  • Left in 2015
  • Now: Postdoc, RU Groningen