mirror of
https://gitlab.science.ru.nl/mthesis-edeboone/m-thesis-introduction.git
synced 2024-11-14 02:23:32 +01:00
158 lines
4.5 KiB
Python
Executable file
158 lines
4.5 KiB
Python
Executable file
#!/usr/bin/env python3
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import numpy as np
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import json
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import h5py
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import os.path as path
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from copy import deepcopy as copy
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from earsim import REvent, Antenna
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import lib
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tx_fname = 'tx.json'
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antennas_fname = 'antennas.hdf5'
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def write_tx_file(fname, tx, f_beacon):
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with open(fname, 'w') as fp:
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return json.dump(
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dict(
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f_beacon=f_beacon,
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tx=dict(
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x=tx.x,
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y=tx.y,
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z=tx.z,
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name=tx.name
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)
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),
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fp
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)
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def read_tx_file(fname):
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with open(fname, 'r') as fp:
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data = json.load(fp)
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f_beacon = data['f_beacon']
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tx = Antenna(**data['tx'])
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return tx, f_beacon
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def read_beacon_hdf5(fname):
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with h5py.File(fname, 'r') as h5:
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tx_attrs = h5['tx'].attrs
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f_beacon = tx_attrs.get('f_beacon')
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mydict = { k:tx_attrs.get(k) for k in ['x', 'y', 'z', 'name'] }
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tx = Antenna(**mydict)
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antennas = []
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for k, ant in h5['antennas'].items():
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mydict = { k:ant.attrs.get(k) for k in ['x', 'y', 'z', 'name'] }
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antenna = Antenna(**mydict)
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antenna.t = ant['traces'][0]
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antenna.Ex = ant['traces'][1]
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antenna.Ey = ant['traces'][2]
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antenna.Ez = ant['traces'][3]
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antenna.beacon = ant['traces'][4]
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antennas.append(antenna)
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return f_beacon, tx, antennas
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def init_antenna_hdf5(fname, tx = None, f_beacon = None):
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with h5py.File(fname, 'w') as fp:
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if tx is not None or f_beacon is not None:
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tx_group = fp.create_group('tx')
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tx_attrs = tx_group.attrs
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if f_beacon is not None:
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tx_attrs['f_beacon'] = f_beacon
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if tx is not None:
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tx_attrs['x'] = tx.x
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tx_attrs['y'] = tx.y
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tx_attrs['z'] = tx.z
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tx_attrs['name'] = tx.name
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return fname
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def append_antenna_hdf5(fname, antenna, columns = [], name='traces', prepend_time=True, overwrite=True):
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if not overwrite:
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raise NotImplementedError
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with h5py.File(fname, 'a') as fp:
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if 'antennas' in fp.keys():
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if not overwrite:
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raise NotImplementedError
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group = fp['antennas']
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else:
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group = fp.create_group('antennas')
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if antenna.name in group:
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if not overwrite:
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raise NotImplementedError
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ant_group = group[antenna.name]
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else:
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ant_group = group.create_group(antenna.name)
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ant_attrs = ant_group.attrs
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ant_attrs['x'] = antenna.x
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ant_attrs['y'] = antenna.y
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ant_attrs['z'] = antenna.z
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ant_attrs['name'] = antenna.name
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if name in ant_group:
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if not overwrite:
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raise NotImplementedError
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del ant_group[name]
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dset = ant_group.create_dataset(name, (len(columns) + 1*prepend_time, len(columns[0])), dtype='f')
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if prepend_time:
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dset[0] = antenna.t
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for i, col in enumerate(columns, 1*prepend_time):
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dset[i] = col
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if __name__ == "__main__":
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from os import path
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remake_tx = False
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fname = "ZH_airshower/mysim.sry"
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tx = Antenna(x=-500,y=0,z=0,name='tx')
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f_beacon = 50e-3 # GHz
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beacon_amplitudes = 1e-6*np.array([1e2, 0, 0]) # mu V/m
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####
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fname_dir = path.dirname(fname)
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tx_fname = path.join(fname_dir, tx_fname)
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antennas_fname = path.join(fname_dir, antennas_fname)
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if not path.isfile(tx_fname) or remake_tx:
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write_tx_file(tx_fname, tx, f_beacon)
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else:
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tx, f_beacon = read_tx_file(tx_fname)
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# read in antennas
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ev = REvent(fname)
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N_antennas = len(ev.antennas)
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# initialize hdf5 file
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init_antenna_hdf5(antennas_fname, tx, f_beacon)
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# make beacon per antenna
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for i, antenna in enumerate(ev.antennas):
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beacon = lib.beacon_from(tx, antenna, f_beacon, antenna.t)
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E = np.array([antenna.Ex, antenna.Ey, antenna.Ez, beacon])
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append_antenna_hdf5( antennas_fname, antenna, E, name='orig_traces', prepend_time=True)
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# add to relevant polarisation
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for i, _ in enumerate(beacon_amplitudes):
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E[i] += beacon_amplitudes[i]*beacon
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append_antenna_hdf5( antennas_fname, antenna, E, name='traces', prepend_time=True)
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print("Antenna HDF5 file written as " + str(antennas_fname))
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