test_realizers.py 文件源码

python
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项目:nengolib 作者: arvoelke 项目源码 文件源码
def test_func_realize(radii):
    sys = Alpha(0.1)

    T = np.asarray([[1., 2.], [0, -1.]])

    for Tinv in (None, inv(T)):
        realize_result = _realize(sys, radii, T, Tinv)

        assert realize_result.sys is sys
        assert np.allclose(inv(realize_result.T), realize_result.Tinv)

        rsys = realize_result.realization
        assert ss_equal(rsys, sys.transform(realize_result.T))

        # Check that the state vector are related by T
        length = 1000
        dt = 0.001
        x_old = np.asarray([sub.impulse(length, dt) for sub in sys])
        x_new = np.asarray([sub.impulse(length, dt) for sub in rsys])

        r = np.atleast_2d(np.asarray(radii).T).T
        assert np.allclose(np.dot(T, x_new * r), x_old)
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