P Of K EstimatoR


POKER is an algorithm designed to estimate the angular power spectrum of a 2D map or the cross-power spectrum of two 2D maps in the flat sky limit approximation in a realistic data context : steep power spectrum, non periodic boundary conditions, arbitrary pixel resolution, non trivial masks and observation patch geometry. It is an adaptation of the pseudo-angular power spectrum approach pioneered by MASTER (Hivon et al, 2002) in the context of CMB anisotropy.