def test_NRZ_bits(self):
x, b, data = ss.NRZ_bits(25, 8)
b_check = np.array([ 0.125, 0.125, 0.125, 0.125, 0.125, 0.125, 0.125, 0.125])
x_vals = [-1, 1]
data_vals = [0, 1]
for bit in x:
x_check = bit in x_vals
self.assertEqual(x_check, True)
npt.assert_equal(b, b_check)
for bit in data:
data_check = bit in data_vals
self.assertEqual(data_check, True)
def test_bit_errors(self):
x, b, data = ss.NRZ_bits(1000000, 10)
y = ss.cpx_AWGN(x, 12, 10)
z = signal.lfilter(b, 1, y)
Pe_hat = ss.bit_errors(z, data, 10, 10)
npt.assert_almost_equal(Pe_hat, 3.0000030000030001e-06, decimal=5)
def test_NRZ_bits_value_error(self):
with self.assertRaisesRegexp(
ValueError, 'pulse type must be rec, rc, or src') as NRZ_err:
x, b, data = ss.NRZ_bits(100, 10, pulse='value')
def test_NRZ_bits_3(self):
Tspan = 10 # Time span in seconds
PN, b, data = ss.NRZ_bits(1000 * Tspan, 8000 / 1000)