Filtering on USA Grid

Scales up to the synthetic USA grid (~82k nodes) to demonstrate performance on larger networks.

Filtering on USA Grid
from sgwt import Convolve, impulse
from sgwt import DELAY_USA as L
from sgwt import COORD_USA as C

X = impulse(L, n=35000)
s = 10

with Convolve(L) as conv:
    Y = conv.bandpass(X, s, order=4)
Band-pass filtered signal on USA Grid Example