Nicholas Demos authored 4 years ago and Jameson Rollins committed 4 years ago

From MIT coating thermal noise experiment results:
* https://dcc.ligo.org/LIGO-G2000880
and LMA 2020 paper:
* https://iopscience.iop.org/article/10.1088/1361-6382/ab77e9

As was done in matgwinc some months ago

This patch provides a new nb sub-module that defines classes for managing
and calculating noise budgets.  It provides the following overridable
classes:

nb.Calibration  A noise calibration
nb.Noise        A noise source
nb.Budget       A budget of noises

The Budget class includes a calc_trace() method that will return a traces
dictionary that includes data and trace plot styling for every noise term
in the budget recursively.

The existing included interferometers are updated to define their budgets
using this new interface, and the plot_noises function is updated to
accept the new traces dictionary.

An HDF5_SCHEMA describes how trace dictionaries are encoded into HDF5 files.
The new io module includes functions for writing traces to HDF5 files, and
for reading traces stored in this format.

The command line interface is updated to handle this new structure.

This is a port of the changes added to matgwinc in
gwinc/matgwinc@a83e5053b64e6e8d3176f8fc29df631972fec451

The new pygwinc quantum curve diverges slightly from the matgwinc
version at the highest frequencies, for reasons that are not clear
to me...

Implements the changes recommended by Jan Harms in https://git.ligo.org/rana-adhikari/CryogenicLIGO/issues/45
Fixes #18

Improves readbility.  use translation for MATLAB purposes.

Infrastructure is obviously where it really belongs.  This also allows us
to almost eliminate the need for the Constants struct on our side.

This is mostly used for MATLAB translation, but is useful for a couple of
other things as well (R_earth for instance).

ifo.Suspension.Type now accepts string for suspension calc func, e.g. 'Quad'
for 'suspQuad' calc.

Updates to materials parameters for new thermal noise estimate, and SRM and
PD params.

 https://dcc.ligo.org/LIGO-T1800044

no functional change

This is now commensurate with what matlab gwinc does, and makes the IFO
structures directly comparable without any hacky conversions.

This adds a Struct() class that mimics a MATLAB struct by storing values as
class attributes, but also includes methods for converting to/from dicts,
yaml, and mat_struct objects.

A convenience function load_ifo() is included to load an ifo definition
either from a .yaml or .mat file or from an included <ifo>.yaml.

An 'aLIGO.yaml' definition is included.