Astronomy and Astrophysics – Astrophysics – Instrumentation and Methods for Astrophysics
Scientific paper
2011-08-26
Astronomy and Astrophysics
Astrophysics
Instrumentation and Methods for Astrophysics
4 pages, 7 figures, URSI GASS, Turkey, Istanbul, 14-19th Augustus, 2011
Scientific paper
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.
Ivashina Marianna V.
Maaskant Rob
Warnick Karl F.
Wijnholds Stefan J.
No associations
LandOfFree
Performance of Polarimetric Beamformers for Phased Array Radio Telescopes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Performance of Polarimetric Beamformers for Phased Array Radio Telescopes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Performance of Polarimetric Beamformers for Phased Array Radio Telescopes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-613832