edges_cal.tools.FrequencyRange

class edges_cal.tools.FrequencyRange(f: ~astropy.units.quantity.Annotated[~astropy.units.quantity.Quantity, PhysicalType('frequency')], *, f_low: ~astropy.units.quantity.Annotated[~astropy.units.quantity.Quantity, PhysicalType('frequency')] = <Quantity 0. MHz>, f_high: float = <Quantity inf MHz>)

Class defining a set of frequencies.

A given frequency range can be cut on either end, and be made more sparse.

Parameters:

• f – An array of frequencies defining a given spectrum.

• f_low – A minimum frequency to keep in the array. Default is min(f).

• f_high – A minimum frequency to keep in the array. Default is min(f).

Methods

__init__(f, *[, f_low, f_high])	Method generated by attrs for class FrequencyRange.
clone(**kwargs)	Make a new frequency range object with updated parameters.
decimate(bin_size[, decimate_at, embed_mask])	Decimate the frequency array.
denormalize(f)	De-normalise a set of frequencies.
from_edges([n_channels, max_freq, …])	Construct a FrequencyRange object with underlying EDGES freqs.
normalize(f)	Normalise a set of frequencies.

Attributes

center	The center of the frequency array.
df	Resolution of the frequencies.
freq	The frequency array.
freq_full	Alias for f.
freq_recentred	The frequency array re-centred so that it extends from -1 to 1.
mask	Mask used to take input frequencies to output frequencies.
max	Maximum frequency in the array.
min	Minimum frequency in the array.
n	The number of frequencies in the (masked) array.
nfull	The number of frequencies in the full array.
range	Full range of the frequencies.