def test_instfreq(self):
"""Test instantaneous frequency calculation."""
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
ifreq = fproc.inst_freq(signal)[0]
self.assertAlmostEqual(ifreq.min(), 0.05, places=2)
self.assertAlmostEqual(ifreq.max(), 0.3, places=2)
self.assert_is_linear(ifreq)
def test_group_delay(self):
"""Test Group delay calculation."""
n_points = 128
signal = am.amgauss(n_points, 64, 30) * fm.fmlin(n_points, 0.1, 0.4)[0]
fnorm = np.arange(0.1, 0.38, step=0.04)
grp_dlay = fproc.group_delay(signal, fnorm)
self.assert_is_linear(grp_dlay, 0)
def test_group_delay(self):
"""Test Group delay calculation."""
n_points = 128
signal = am.amgauss(n_points, 64, 30) * fm.fmlin(n_points, 0.1, 0.4)[0]
fnorm = np.arange(0.1, 0.38, step=0.04)
grp_dlay = fproc.group_delay(signal, fnorm)
self.assert_is_linear(grp_dlay, 0)
def test_instfreq(self):
"""Test instantaneous frequency calculation."""
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
ifreq = fproc.inst_freq(signal)[0]
self.assertAlmostEqual(ifreq.min(), 0.05, places=2)
self.assertAlmostEqual(ifreq.max(), 0.3, places=2)
self.assert_is_linear(ifreq)
def test_fmlin(self):
"""Test linear frequency modulation."""
n_points, init_freq, final_freq, center = 128, 0.05, 0.3, 50
signal, iflaw = fm.fmlin(n_points, init_freq, final_freq, center)
np.testing.assert_allclose(iflaw,
np.linspace(init_freq, final_freq,
n_points))
self.assert_is_analytic(signal)
def test_fmlin(self):
"""Test linear frequency modulation."""
n_points, init_freq, final_freq, center = 128, 0.05, 0.3, 50
signal, iflaw = fm.fmlin(n_points, init_freq, final_freq, center)
np.testing.assert_allclose(iflaw,
np.linspace(init_freq, final_freq,
n_points))
self.assert_is_analytic(signal)
def test_locfreq(self):
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
input_avg_freq = (0.05 + 0.3) / 2.0
avg_norm_freq, bandwidth = fproc.locfreq(signal)
self.assertAlmostEqual(avg_norm_freq, input_avg_freq, places=2)
def test_instfreq(self):
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
ifreq = fproc.inst_freq(signal)[0]
self.assertAlmostEqual(ifreq.min(), 0.05, places=2)
self.assertAlmostEqual(ifreq.max(), 0.3, places=2)
self.assert_is_linear(ifreq)
def test_locfreq(self):
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
input_avg_freq = (0.05 + 0.3) / 2.0
avg_norm_freq, bandwidth = fproc.locfreq(signal)
self.assertAlmostEqual(avg_norm_freq, input_avg_freq, places=2)
def test_instfreq(self):
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
ifreq = fproc.inst_freq(signal)[0]
self.assertAlmostEqual(ifreq.min(), 0.05, places=2)
self.assertAlmostEqual(ifreq.max(), 0.3, places=2)
self.assert_is_linear(ifreq)
def test_locfreq(self):
"""Test calculation of localized frequency characteristics."""
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
input_avg_freq = (0.05 + 0.3) / 2.0
avg_norm_freq, bandwidth = fproc.locfreq(signal)
self.assertAlmostEqual(avg_norm_freq, input_avg_freq, places=2)
def test_locfreq(self):
"""Test calculation of localized frequency characteristics."""
signal, _ = fm.fmlin(128, 0.05, 0.3, 50)
input_avg_freq = (0.05 + 0.3) / 2.0
avg_norm_freq, bandwidth = fproc.locfreq(signal)
self.assertAlmostEqual(avg_norm_freq, input_avg_freq, places=2)
