Search: onr:"swepub:oai:research.chalmers.se:8dfca583-6c5a-4fb7-9dcd-70ba8eb1e6fe" >
Performance of pola...
Performance of polarimetric beamformers for phased array radio telescopes
-
- Ivashina, Marianna, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Wijnholds, S. J. (author)
- Netherlands Institute for Radio Astronomy (ASTRON)
-
- Maaskant, Rob, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Warnick, K. F. (author)
- Brigham Young University
-
show less...
-
(creator_code:org_t)
- ISBN 9781424451173
- 2011
- 2011
- English.
-
In: 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011, Istanbul, 13-20 August 2011. - 9781424451173
- Related links:
-
http://publications.... (primary) (free)
-
show more...
-
https://research.cha...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- The results of four recently introduced beamforming schemes for phased array systems are discussed, each of which is capable to provide high sensitivity and accurate polarimetric performance of array-based radio telescopes. Ideally, a radio polarimeter should recover the actual polarization state of the celestial source, and thus compensate for unwanted polarization degradation effects which are intrinsic to the instrument. In this paper, we compare the proposed beamforming schemes through an example of a practical phased array system (APERTIF prototype) and demonstrate that the optimal beamformer, the max-SLNR beamformer, the eigenvector beamformer, and the bi-scalar beamformer are sensitivity equivalent but lead to different polarization state solutions, some of which are sub-optimal.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Publication and Content Type
- kon (subject category)
- ref (subject category)
Find in a library
To the university's database