Bayesian power spectrum estimation with modelling of systematic effects in delay-fringe rate space
The paper develops a Bayesian framework called 'hydra-pspec' to estimate the Epoch of Reionisation power spectrum while explicitly modeling multiplicative systematic effects like cable reflections in delay-fringe rate space. By treating systematics as a multiplicative factor rather than filtering them out, the method aims for more robust results, showing that EoR estimation is largely independent of where these artifacts are located.