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- Radio astronomical polarimetry and phase-coherent matrix convolution
- van Straten, W.
- A new phase-coherent technique for the calibration of polarimetric data is presented. Similar to the one-dimensional form of convolution, data are multiplied by the response function in the frequency domain. Therefore, the system response can be corrected with arbitrarily high spectral resolution, effectively treating the problem of bandwidth depolarization. As well, the original temporal resolution of the data is retained. The method is therefore particularly useful in the study of radio pulsars, in which high time resolution and polarization purity are essential requirements of high-precision timing. As a demonstration of the technique, it is applied to full-polarization baseband recordings of the nearby millisecond pulsar, PSR J0437-4715.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Centre for Astrophysics and Supercomputing
- Astrophysical Journal, Vol. 568, no. 1 (2002), pp. 436-442
- Publication year
- Data analysis methods; Polarimetric techniques; PSR J0437-4715
- University of Chicago Press
- Publisher URL
- Copyright © 2002 The American Astronomical Society. Reproduced in accordance with the copyright policy of the publisher.
- Full text
- Peer reviewed