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ZH: control noise realisations when generating traces

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Eric Teunis de Boone 2023-03-27 16:52:32 +02:00
parent cea74ee2cd
commit 2f6616734b
1 changed files with 5 additions and 3 deletions
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8
simulations/airshower_beacon_simulation/aa_generate_beacon.py
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@ -321,6 +321,7 @@ if __name__ == "__main__":
# Noise properties # Noise properties
noise_sigma = args.noise_sigma # mu V/m set to None to ignore noise_sigma = args.noise_sigma # mu V/m set to None to ignore
unique_noise_realisations = True # a new noise realisation per antenna vs. single noise realisation shared across antennas
# Beacon properties # Beacon properties
beacon_amplitudes = np.array(args.beacon_amplitudes) # mu V/m beacon_amplitudes = np.array(args.beacon_amplitudes) # mu V/m
@ -381,6 +382,7 @@ if __name__ == "__main__":
init_antenna_hdf5(antennas_fname, tx, f_beacon) init_antenna_hdf5(antennas_fname, tx, f_beacon)
# make beacon per antenna # make beacon per antenna
noise_realisation = np.array([0])
for i, antenna in enumerate(ev.antennas): for i, antenna in enumerate(ev.antennas):
#TODO: allow to change the samplerate (2, 4, 8 ns) #TODO: allow to change the samplerate (2, 4, 8 ns)
@ -409,9 +411,9 @@ if __name__ == "__main__":
beacon = 1e-6 * lib.beacon_from(tx, antenna, f_beacon, antenna.t, c_light=c_light, radiate_rsq=beacon_radiate_rsq) # mu V/m beacon = 1e-6 * lib.beacon_from(tx, antenna, f_beacon, antenna.t, c_light=c_light, radiate_rsq=beacon_radiate_rsq) # mu V/m
# noise realisation # noise realisation
noise_realisation = 0 if unique_noise_realisations or (noise_realisation == 0).all(): # either create one for every antenna, or generate a single one
if noise_sigma is not None: print("Noise realisation!")
noise_realisation = 1e-6 * rng.normal(0, noise_sigma, size=len(beacon)) # mu V/m noise_realisation = 1e-6 * rng.normal(0, noise_sigma or 0, size=len(antenna.t)) # mu V/m
# Collect all data to be saved (with the first 3 values the E fields) # Collect all data to be saved (with the first 3 values the E fields)
traces = np.array([antenna.Ex, antenna.Ey, antenna.Ez, beacon, noise_realisation]) traces = np.array([antenna.Ex, antenna.Ey, antenna.Ez, beacon, noise_realisation])