HackRF-Treasure-Chest/Software/Universal Radio Hacker/tests/PlotTests.py

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2022-09-22 22:46:47 +02:00
import copy
import unittest
import matplotlib.pyplot as plt
import numpy as np
from urh.signalprocessing.Modulator import Modulator
from urh.cythonext import signal_functions
from urh.signalprocessing.ProtocolAnalyzer import ProtocolAnalyzer
from urh.signalprocessing.Signal import Signal
from tests.utils_testing import get_path_for_data_file
class PlotTests(unittest.TestCase):
def test_plot(self):
modulator = Modulator("gfsk")
modulator.modulation_type = "GFSK"
modulator.samples_per_symbol = 100
modulator.sample_rate = 1e6
modulator.parameters[1] = 20e3
modulator.parameters[0] = 10e3
modulator.carrier_freq_hz = 15e3
modulator.carrier_phase_deg = 90
modulated_samples = modulator.modulate([True, False, True, False, False], 77)
data = copy.deepcopy(modulated_samples)
modulated_samples = modulator.modulate([False, True, True, True, True, False, True], 100, start=len(data))
data = np.concatenate((data, modulated_samples))
plt.subplot(2, 1, 1)
axes = plt.gca()
axes.set_ylim([-2,2])
plt.plot(data.real)
plt.title("Modulated Wave")
plt.subplot(2, 1, 2)
qad = signal_functions.afp_demod(np.ascontiguousarray(data), 0, "FSK", 2)
plt.plot(qad)
plt.title("Quad Demod")
plt.show()
def test_carrier_auto_detect(self):
signal = Signal(get_path_for_data_file("wsp.complex"), "test")
signal.modulation_type = "ASK"
signal.noise_threshold = 0.035
signal.center = 0.0245
signal.samples_per_symbol = 25
pa = ProtocolAnalyzer(signal)
pa.get_protocol_from_signal()
start, num_samples = pa.get_samplepos_of_bitseq(0, 0, 0, 999999, include_pause=False)
print("-----------")
print(signal.estimate_frequency(start, end=start+num_samples, sample_rate=2e6))