Associated Universities Inc. operates the National Radio Astronomy Observatory under cooperative agreement with the National Science Foundation.

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All expressions in this paper are in the signal-domain polarization frame (the linear or circular polarization bases). Conversion to and from the Stokes frame can be done by the application of an appropriate co-ordinate transform operator (Hamaker et al. 1996). Note that only the minor cycle of the deconvolution iterations operate in the Stokes frame (see Sect. 4).

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... unitary

It can be shown that if ${\ensuremath{\mathsf{J^{Sky}_{\it i}}} }$ is unitary, then so is ${\ensuremath{\mathsf{J^{Sky^\dag }_{\it i}}} }\otimes{\ensuremath{\mathsf{J^{Sky}_{\it i}}} }$ .

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... functions)

This might not be a monotonically decreasing function for all ways in which a feed might illuminate a secondary/primary reflector.

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... $\mathcal{CASA}$

http://casa.nrao.edu

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