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The Square Kilometre Array (SKA) is an ambitious project to build a radio telescope that will enable breakthrough science and discoveries not possible with current facilities. Initially, two telescopes are planned, SKA1-mid and SKA1-low, built over two sites in southern Africa and Western Australia, respectively. Constructed in two phases: SKA1 is being designed now; SKA2 is planned to follow. This...
Sampling the fields near the focal plane of a paraboloid, with an array of feeds, has numerous advantages. With appropriate signal processing, multiple-beams can be formed yielding a broader field of view compared to a conventional single-element feed [1-7]. Additionally, these beams can be shaped and optimized, for instance to maximize gain or minimize spillover [4,8]. As well, corrections can be...
In April 2014 the SKA Organisation initiated a process to re-baseline the first phase of the SKA (SKA1) Construction Project. The objective of this process was the scoping and scaling of a system that delivers the maximum science throughput at a cost consistent with the original cost cap of € 650M. Based on costing information from the elements constituting the SKA telescopes (SKA1-Low / SKA1-Mid...
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