skymodel.sigmoid_filter

skymodel.sigmoid_filter(l_0, d_l, lmax)

Computes a sigmoid-shaped filer high-pass window in spherical harmonic space.

Parameters

l_0: float

Determines the spatial scale above which the sky signal will be filtered.

d_l: float

Determines the slope of the widow.

lmax: float

Maximum value of ell to be used

Returns

window: float array

Computed window in spherical harmonic space