http://arxiv.org/abs/1801.05419
The requirements on the stability of the frequency reference in the Square Kilometre Array (SKA), as a radio astronomy interferometer, are given in terms of maximum accepted degree of coherence loss caused by the instability of the frequency reference. In this paper we analyse the relationship between the characterisation of the instability of the frequency reference in the radio astronomy array and the coherence loss. The calculation of the coherence loss from the instability characterisation given by the Allan deviation is reviewed. Some practical aspects and limitations are analysed.
B. Alachkar, A. Wilkinson and K. Grainge
Thu, 18 Jan 2018
37/58
Comments: 14 pages
You must be logged in to post a comment.