Simulating full-sky interferometric observations
نویسندگان
چکیده
Aperture array interferometers, such as that proposed for the Square Kilometre Array (SKA), will see the entire sky, hence the standard approach to simulating observed visibilities will not be applicable since it relies on a tangent plane approximation that is only valid for small fields of view. We derive the harmonic representation of the visibility function observed by an aperture array interferometer and outline a method for simulating such observations. Full-sky contributions to interferometer observations are included, ensuring that contamination due to wide sidelobes of the primary beam is not neglected. We perform preliminary simulations to validate our theory.
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تاریخ انتشار 2008