57 lines
2.5 KiB
Python
57 lines
2.5 KiB
Python
import unittest
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import numpy as np
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from urh.ainterpretation.AutoInterpretation import detect_noise_level
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from tests.test_util import get_path_for_data_file
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from urh.signalprocessing.Signal import Signal
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class TestNoiseDetection(unittest.TestCase):
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def test_for_fsk_signal(self):
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data = np.fromfile(get_path_for_data_file("fsk.complex"), dtype=np.complex64)
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noise_level = detect_noise_level(np.abs(data))
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self.assertGreaterEqual(noise_level, 0.0005)
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self.assertLessEqual(noise_level, 0.009)
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def test_for_ask_signal(self):
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data = np.fromfile(get_path_for_data_file("ask.complex"), dtype=np.complex64)
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noise_level = detect_noise_level(np.abs(data))
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self.assertGreaterEqual(noise_level, 0.0110)
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self.assertLessEqual(noise_level, 0.043)
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def test_for_fsk_signal_with_little_noise_before_and_after(self):
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data = np.concatenate((np.fromfile(get_path_for_data_file("fsk.complex"), dtype=np.complex64)[-1000:],
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np.fromfile(get_path_for_data_file("fsk.complex"), dtype=np.complex64)[0:18800]))
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noise_level = detect_noise_level(np.abs(data))
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self.assertGreaterEqual(noise_level, 0.0005)
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self.assertLessEqual(noise_level, 0.009)
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def test_for_enocean_ask_signal(self):
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data = np.fromfile(get_path_for_data_file("enocean.complex"), dtype=np.complex64)
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noise_level = detect_noise_level(np.abs(data))
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self.assertGreaterEqual(noise_level, 0.01)
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self.assertLessEqual(noise_level, 0.28)
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def test_for_noiseless_signal(self):
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data = np.fromfile(get_path_for_data_file("fsk.complex"), dtype=np.complex64)[0:17639]
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noise_level = detect_noise_level(np.abs(data))
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self.assertEqual(noise_level, 0)
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def test_multi_messages_different_rssi(self):
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data = Signal(get_path_for_data_file("multi_messages_different_rssi.coco"), "").iq_array.data
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noise_level = detect_noise_level(np.abs(data))
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self.assertGreater(noise_level, 0.001)
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self.assertLess(noise_level, 0.002)
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def test_for_psk_signal(self):
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data = Signal(get_path_for_data_file("psk_generated.complex"), "").iq_array.data
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noise_level = detect_noise_level(np.abs(data))
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self.assertGreater(noise_level, 0.0067)
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self.assertLessEqual(noise_level, 0.0081)
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def test_for_noisy_fsk_15db_signal(self):
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data = Signal(get_path_for_data_file("FSK15.complex"), "").iq_array.data
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noise_level = detect_noise_level(np.abs(data))
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self.assertEqual(noise_level, 0)
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