make_lowpass_filter

jwst.clean_flicker_noise.nsclean.make_lowpass_filter(f_half_power, w_cutoff, n, d=1.0)

Make a lowpass Fourier filter.

Parameters:

f_half_powerfloat

Half power frequency

w_cutofffloat

Width of cosine cutoff. The response transitions from 1x to 0x over this range of frequencies

nint

Number of samples in the timeseries

dfloat

Sample spacing (inverse of the sampling rate). Defaults to 1.

Returns:

filtndarray

Filter array