Slope Periodicity Management

The Fourier transform reconstruct assumes a periodic square grid when reconstructing phase. Most telescopes have a non-periodic circular grid, so we must adjust the slopes so that they account for the periodicity assumption.

Reference / API

FTR.slopemanage Module


slope_management(ap, ys, xs) Slope management for the fast fourier transform.
edge_extend(ap, xs, ys) Edge Extension for the fast fourier transform.


SlopeManagedFTR(ap[, filter, manage_tt, ...]) An FTR Reconstructor with slope management to remove the effects of finite apertures.

Class Inheritance Diagram

Inheritance diagram of FTR.slopemanage.SlopeManagedFTR