Array configuration studies for the SKA -- Implementation of figures of merit based on SDR

TL;DR

This paper discusses the implementation of figures of merit based on spatial dynamic range to evaluate SKA array configurations, supported by numerical tests to ensure optimal design for competitive radio imaging performance.

Contribution

It introduces and tests SDR-based figures of merit for SKA array configuration evaluation, enhancing design assessment methods.

Findings

Preliminary numerical results support SDR-based figures of merit.

SDR metrics effectively quantify imaging performance.

Implementation aids in optimizing SKA array configurations.

Abstract

The Square Kilometre Array is going to become operational at the time when several new large optical, X-ray and Gamma-ray telescopes are expected to be working. The main drive for building the SKA is a significant improvement of sensitivity that would widen the general scope of the centimetre-wavelength radio science. To this end, a thorough design studies should be made, in order to ensure that the SKA becomes a competitive counterpart of the facilities at other wavebands. To quantify imaging performance of the SKA configurations, we are implementing figures of merit based on spatial dynamic range (SDR). This work is focused on extensive numerical tests of the analytical, SDR--based figures of merit derived in the SKA Memo 38 (A. Lobanov). Here, we present our preliminary results.