def testFeedback(self):
h1 = TransferFunction([1], [1, 2, 2])
omega = np.logspace(-1, 2, 10)
f1 = FRD(h1, omega)
np.testing.assert_array_almost_equal(
f1.feedback(1).frequency_response([0.1, 1.0, 10])[0],
h1.feedback(1).frequency_response([0.1, 1.0, 10])[0])
# Make sure default argument also works
np.testing.assert_array_almost_equal(
f1.feedback().frequency_response([0.1, 1.0, 10])[0],
h1.feedback().frequency_response([0.1, 1.0, 10])[0])
def testFeedback(self):
h1 = TransferFunction([1], [1, 2, 2])
omega = np.logspace(-1, 2, 10)
f1 = FRD(h1, omega)
np.testing.assert_array_almost_equal(
f1.feedback(1).freqresp([0.1, 1.0, 10])[0],
h1.feedback(1).freqresp([0.1, 1.0, 10])[0])
# Make sure default argument also works
np.testing.assert_array_almost_equal(
f1.feedback().freqresp([0.1, 1.0, 10])[0],
h1.feedback().freqresp([0.1, 1.0, 10])[0])
def test_size_mismatch(self):
sys1 = FRD(ct.rss(2, 2, 2), np.logspace(-1, 1, 10))
# Different number of inputs
sys2 = FRD(ct.rss(3, 1, 2), np.logspace(-1, 1, 10))
with pytest.raises(ValueError):
FRD.__add__(sys1, sys2)
# Different number of outputs
sys2 = FRD(ct.rss(3, 2, 1), np.logspace(-1, 1, 10))
with pytest.raises(ValueError):
FRD.__add__(sys1, sys2)
# Inputs and outputs don't match
with pytest.raises(ValueError):
FRD.__mul__(sys2, sys1)
# Feedback mismatch
with pytest.raises(ValueError):
FRD.feedback(sys2, sys1)
