mirror of
https://gitlab.science.ru.nl/mthesis-edeboone/m-thesis-introduction.git
synced 2025-10-31 03:46:44 +01:00
51 lines
1.2 KiB
Python
Executable file
51 lines
1.2 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
|
|
"""
|
|
Test the functions in lib concerning
|
|
beacon generation and phase measuring
|
|
work correctly together.
|
|
"""
|
|
|
|
|
|
import matplotlib.pyplot as plt
|
|
import numpy as np
|
|
|
|
import lib
|
|
|
|
seed = 12345
|
|
dt = 1 # ns
|
|
frequency = 45e-3 # GHz
|
|
N = 5e2
|
|
|
|
t = np.arange(0, 10*int(1e3), dt, dtype=float)
|
|
rng = np.random.default_rng(seed)
|
|
|
|
phase_res = np.zeros(int(N))
|
|
|
|
# Vary both the base time and the phase
|
|
t_extra = 0
|
|
for i in range(int(N)):
|
|
|
|
# Change timebase
|
|
t -= t_extra
|
|
t_extra = (2*rng.uniform(size=1) - 1) *1e3
|
|
t += t_extra
|
|
|
|
# Randomly phased beacon
|
|
phase = lib.phase_mod(np.pi*(2*rng.uniform(size=1) -1)) # rad
|
|
beacon = lib.sine_beacon(frequency, t, t0=0, phase=phase)
|
|
|
|
if True: # blank part of the beacon
|
|
blank_low, blank_high = 2*int(1e3), 4*int(1e3)
|
|
beacon[blank_low:blank_high] = 0
|
|
|
|
measured = lib.find_beacon_in_traces([beacon], t, frequency, frequency_fit=False)
|
|
|
|
phase_res[i] = lib.phase_mod(measured[1][0] - phase)
|
|
|
|
fig, ax = plt.subplots()
|
|
ax.set_title("Sine beacon phase determination\nwith random time shifts")
|
|
ax.set_xlabel("$\\varphi_{meas} - \\varphi_{true}$ [rad]")
|
|
ax.set_ylabel("#")
|
|
ax.hist(phase_res, bins='sqrt')
|
|
plt.show()
|