Improving Radio Astronomy Images by Array Processing Algorithms
Many-array classic beamformer Classic beamformer image
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ASSC
Abell 2256 LOFAR
Terrestrial Interference




My research interest is the improvement of the radio-astronomy dirty image so that better images are obtained after deconvolution (e.g., CLEAN, MEM).

Recently I developed a new algorithm, the Adaptive Selective Sidelobe Canceller (ASSC) Beamformer.

The images on this site demonstrate significant improvement and excellent resilient to out-of-FOV interference (such as terrestrial radiators).

We are now looking to cooperate with radio astronomers and apply the ASSC algorithm to the visibility data of their research subject.  Hopefully new astronomy data is discovered with the help of the ASSC algorithm.

Classic dirty image

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ASSC dirty image

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MVDR dirty image

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ASSC dirty image

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Contact Information

Email: ronny.levanda@gmail.com
Tel: +972-54-654-5564
Fax: +972-57-794-7527